CN109656027A - Wave multiplexer and compound wave multiplexer - Google Patents
Wave multiplexer and compound wave multiplexer Download PDFInfo
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- CN109656027A CN109656027A CN201710942810.2A CN201710942810A CN109656027A CN 109656027 A CN109656027 A CN 109656027A CN 201710942810 A CN201710942810 A CN 201710942810A CN 109656027 A CN109656027 A CN 109656027A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
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Abstract
Present invention discloses a kind of wave multiplexers, the wave multiplexer includes the first polarization beam splitter, the quarter-wave plate combined with the polarization beam splitter, the first reflecting surface combined with the quarter-wave plate, the quarter-wave plate is obliquely installed relative to first polarization beam splitter, and first reflecting surface and the quarter-wave plate are arranged in parallel；When the same position of orthogonal first P light and the 2nd P light emission to the polarization beam splitter, the first P light is projected through first polarization beam splitter, the 2nd P light injects the quarter-wave plate after passing through first polarization beam splitter, the quarter-wave plate is returned after first reflective surface becomes S light, the S light after first polarization beam splitter reflection with the photosynthetic wave of the first P.The wave multiplexer structure is simple, reduces order of reflection, easy to process, effectively reduces production cost.
Description
Technical field
The present invention relates to wave multiplexer and compound wave multiplexers, belong to laser field.
Background technique
Wavelength-division multiplex technique is one of the major technique of current optical communication field, with transmission rate and transmission capacity requirements
Constantly increase, to realize wavelength-division multiplex, need to be synthesized multi-wavelength light all the way using wave multiplexer.
The scheme of band logical film filtering slice is chiefly used in this technology, but with the continuous constriction of wavelength interval, filter plate
The producting process difficulty of itself constantly increases, and overall cost is high.
Fig. 1 is a kind of common wavelength-division multiplex technique scheme: incident light λ 1, λ 2, λ 3,4 four road specific wavelength of λ, incident light λ
1 injects in rhombic prism according to refraction principle from incident from film filtering slice TFF1 by exporting on the left of rhombic prism；Incident light λ 2
From film filtering slice TFF2 it is incident inject rhombic prism after, then be reflected at TFF1 through the high reverse side in left side, reflected by TFF1
Merged afterwards by transmission plane output on the left of rhombic prism with λ 1；Incident light λ 3 is incident from film filtering slice TFF3 to inject rhombic prism
Afterwards, it then is incident on TFF2 via reverse side high on the left of rhombic prism to go out, the height being again incident on after TFF2 reflects on the left of rhombic prism
Reverse side is incident at TFF1 after reflection, is closed through being emitted by the left side transmission plane of rhombic prism with λ 2, λ 1 after TFF1 reflects
And；Incident light λ 4 after incident injection rhombic prism, reflects incident from film filtering slice TFF4 through reverse side high on the left of rhombic prism
To TFF3, it is incident on the high reverse side in left side after TFF3 reflects, is again incident at TFF2 after reflection, is incident on after TFF2 reflects tiltedly
On the left of square glass prism after high reverse side reflection, it is incident at TFF1, through being exported by transmission plane on the left of rhombic prism after TFF1 reflects, with
λ 1, λ 2, λ 3 merge.To sum up complete the multiplex process of four beam special wavelengths.
There are multiple reflection points in the structure, farthest experienced 6 secondary reflections all the way, in this way to the incident angle of incident light with
The required precision of position is very high, and higher requirements are also raised for the attachment of tetra- film filtering slices of TFF1, TFF2, TFF3, TFF4,
So that manufacture it is difficult, thus caused by whole cost it is very high.
Summary of the invention
The purpose of the present invention is to provide a kind of wave multiplexer, which can reduce order of reflection compared with the prior art, from
And structure is simple, it is easy to process.
For achieving the above object, the present invention provides a kind of wave multiplexer, the wave multiplexer include the first polarization beam splitter,
The quarter-wave plate combined with the polarization beam splitter, the first reflecting surface combined with the quarter-wave plate, described four
/ mono- wave plate is obliquely installed relative to first polarization beam splitter, first reflecting surface and the quarter-wave plate phase
Mutually it is arranged in parallel；When the same position of orthogonal first P light and the 2nd P light emission to the polarization beam splitter, described
One P light is projected through first polarization beam splitter, and the 2nd P light injects described four after passing through first polarization beam splitter
/ mono- wave plate, the quarter-wave plate is returned after first reflective surface becomes S light, described in the S light passes through
First polarization beam splitter reflection after with the photosynthetic wave of the first P.
As the further improvement of an embodiment of the present invention, the wave multiplexer includes the second reflecting surface, and described second is anti-
It is vertical with first polarization beam splitter to penetrate face, when the 2nd P light and the first P light are parallel incident, the 2nd P light is passed through
First polarization beam splitter is passed through after second reflective surface injects the quarter-wave plate.
As the further improvement of an embodiment of the present invention, the wave multiplexer is in second reflecting surface and described first
Between polarization beam splitter be equipped with the first filter plate, first filter plate is parallel with second reflecting surface, when the 3rd P light emission to
First filter plate, the 3rd P light pass through first polarization beam splitter and inject institute after first filter plate reflection
State quarter-wave plate；The 2nd P light successively passes through first filter plate and described after second reflective surface
First polarization beam splitter injects the quarter-wave plate.
As the further improvement of an embodiment of the present invention, the wave multiplexer includes the second polarization beam splitter, and described the
Two polarization beam splitters are vertical with first polarization beam splitter, described when the 2nd P light and the first P light are parallel incident
First P light is projected through first polarization beam splitter, and the 2nd P light is after second polarization beam splitter described in injection
Quarter-wave plate, the quarter-wave plate is returned after first reflective surface becomes S light, described in the S light warp
Second polarization beam splitter, first polarization beam splitter sequentially reflect after with the photosynthetic wave of the first P.
As the further improvement of an embodiment of the present invention, the wave multiplexer includes filter plate, the filter plate and institute
It is vertical to state the first polarization beam splitter, when the 2nd P light and the first P light are parallel incident, the 2nd P light is through described first
First polarization beam splitter, which is passed through, after filter plate reflection injects the quarter-wave plate；Or work as the 2nd P light and institute
The first P light vertical incidence is stated, the 2nd P light successively passes through the filter plate and first polarization beam splitter injects described four
/ mono- wave plate.
As the further improvement of an embodiment of the present invention, first reflecting surface is fitted in the quarter-wave plate
On or first reflecting surface be arranged on the reflecting mirror combined with the quarter-wave plate.
As the further improvement of an embodiment of the present invention, first polarization beam splitter is arranged in polarizing beam splitter
On, the quarter-wave plate is fixed with the polarizing beam splitter by optical cement or viscose glue.
Compared with prior art, the beneficial effects of the present invention are: structure is simple, reduce order of reflection, it is easy to process, have
Effect reduces production cost.
Another object of the present invention is to provide a kind of compound wave multiplexer, the compound wave multiplexer include two or two with
Upper any of the above-described wave multiplexer, described two or more than two wave multiplexers press array arrangement.
As the further improvement of an embodiment of the present invention, first polarization beam splitter is arranged in polarizing beam splitter
On, the compound wave multiplexer includes two wave multiplexers, and two quarter-wave plates of described two wave multiplexers are located at described in two
Between polarizing beam splitter or it is located at except two polarizing beam splitters.
As the further improvement of an embodiment of the present invention, the compound wave multiplexer includes two wave multiplexers, described multiple
Closing wave multiplexer further includes the reflecting mirror combined with the outgoing of first wave multiplexer in two wave multiplexers and second wave multiplexer
It is emitted combined filter plate, the reflecting mirror is parallel with first reflecting surface, the filter plate and the mirror parallel, institute
State the emergent light that filter plate allows the emergent light of the second wave multiplexer to penetrate and reflect the first wave multiplexer.
Compared with prior art, the beneficial effects of the present invention are: compound wave multiplexer can complete the multiplex of more multiple beam,
And structure is simple, reduces order of reflection, easy to process, effectively reduces production cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wavelength-division multiplex technique scheme in the prior art；
Fig. 2 is the schematic diagram for the wave multiplexer that the first specific embodiment of the invention provides, at this point, wave multiplexer completes two beams
The multiplex of light；
Fig. 3 is another schematic diagram of wave multiplexer shown in Fig. 2, at this point, wave multiplexer completes the multiplex of four bundles light；
Fig. 4 is the schematic diagram for the wave multiplexer that the second specific embodiment of the invention provides；
Fig. 5 is the schematic diagram for the wave multiplexer that third specific embodiment of the present invention provides；
Fig. 6 is the schematic diagram for the wave multiplexer that the 4th specific embodiment of the invention provides, at this point, the 2nd P light and the first P
Light is incident in parallel；
Fig. 7 is another schematic diagram of wave multiplexer shown in fig. 6, at this point, the 2nd P light and the first flat vertical incidence of P light；
Fig. 8 is the schematic diagram for the wave multiplexer that the 5th specific embodiment of the invention provides；
Fig. 9 is the schematic diagram of the first compound wave multiplexer provided by the invention；
Figure 10 is the schematic diagram of second provided by the invention compound wave multiplexer；
Figure 11 is the schematic diagram of the third compound wave multiplexer provided by the invention；
Figure 12 is the schematic diagram of the 4th kind of compound wave multiplexer provided by the invention；
Certain specific embodiments of the invention are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.It is attached
Same or similar part or part is denoted with identical appended drawing reference in figure.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
It is to be appreciated that term " first ", " second " etc. are used for description purposes only in the description of the present invention, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more of the features.
Fig. 2 is referred to, the wave multiplexer 100 that first embodiment of the invention provides includes polarizing beam splitter 120 and polarization point
The combined quarter-wave plate 122 of light device 120, the first reflecting surface 126 combined with quarter-wave plate 122, polarizing beam splitter
120 include the first polarization beam splitter 130.Quarter-wave plate 122 is obliquely installed relative to the first polarization beam splitter 130, this reality
It applies in mode, quarter-wave plate 122 tilts 45 degree of settings relative to the first polarization beam splitter 130.First reflecting surface 126 and four
/ mono- wave plate 122 is arranged in parallel.Be represented by dotted lines when in orthogonal first P light A(figure) and the 2nd P light B(figure in
Indicated with two point chain-dotted line) same position of directive polarization beam splitter 130 when, the first P light A penetrates the first polarization beam splitter 130
It projects, the 2nd P light B injects quarter-wave plate 122 after passing through the first polarization beam splitter 130, becomes circularly polarized light, anti-through first
Penetrate and return to quarter-wave plate 122 after face 126 is reflected and become S light, S light after the reflection of the first polarization beam splitter 130 with the first P
Photosynthetic wave.
Present embodiment is preferred, and wave multiplexer 100 includes the second reflecting surface 132, the second reflecting surface 132 and the first polarization point
Light film 130 is vertical, and the 2nd P light B and the first P light A are parallel incident, and the 2nd P light B passes through first after the reflection of the second reflecting surface 132
Polarization beam splitter 130 and inject quarter-wave plate 122, then through the first reflecting surface 126 reflection after return quarter-wave plate 122
Become S light, S light after the reflection of the first polarization beam splitter 130 with the first P light A multiplex.
Using polarized composite wave and polarization spectro, (polarised light of laser output has unicity to present embodiment, i.e., as a result,
The laser of laser output has polarization characteristic or is S-polarization or is P polarization.Polarization beam splitter allow P light transmission and
Reflect S light) principle so that the first P light and the 2nd P light of setting parallel and spaced apart are completed by wave multiplexer 100
Multiplex, 100 structure of wave multiplexer is simple, and order of reflection is few, easy to process, so that production cost be effectively reduced.
In present embodiment, the first P light A is parallel with the first reflecting surface 126.
Present embodiment provide wave multiplexer 100 not only can to two-beam carry out multiplex, can also be to two beams more than
Light beam carry out multiplex, refer to Fig. 3, Fig. 3, which shows, illustratively shows the schematic diagram of four bundles light Shu Jinhang multiplex, this field
Technical staff it is contemplated that present embodiment wave multiplexer 100 can also to the light beam of other numbers carry out multiplex, it is all using with
The same or similar scheme of present embodiment is allincluded in the scope of the present invention.
Fig. 4 is referred to, the wave multiplexer 200 that second embodiment of the invention provides includes polarizing beam splitter 220 and polarization point
The combined quarter-wave plate 222 of light device 220, the first reflecting surface 226 combined with quarter-wave plate 222, polarizing beam splitter
220 include the first polarization beam splitter 230, is represented by dotted lines in the first P light A(figure) it is projected through the first polarization beam splitter 230, the
Indicated in two P light B(figures with two point chain-dotted line) inject quarter-wave plate 222 after, through the first reflecting surface 226 reflection after return to four
/ mono- wave plate 222 becomes S light, S light after the reflection of the first polarization beam splitter 230 with the first P light A multiplex.
Present embodiment is preferred, and wave multiplexer 100 includes the second polarization beam splitter 236, the second polarization beam splitter 236 and the
One polarization beam splitter 230 is vertical, and the 2nd P light B and the first P light A are parallel incident, and the first P light A penetrates the first polarization beam splitter 230
It projects, the 2nd P light B injects quarter-wave plate 222 after passing through the second polarization beam splitter 236, after the reflection of the first reflecting surface 226
Returning to quarter-wave plate 222 becomes S light, and S light is after the second polarization beam splitter 236, the first polarization beam splitter 230 sequentially reflect
With the first P light A multiplex.
Parallel as a result, and setting spaced apart the first P light A and the 2nd P light B complete multiplex by wave multiplexer 200,
200 structure of wave multiplexer is simple, and order of reflection is few, easy to process, so that production cost be effectively reduced.
In present embodiment, the first P light A is vertical with the first reflecting surface 226.
Fig. 5 is referred to, the wave multiplexer 100 of wave multiplexer 300 and first embodiment that third embodiment of the invention provides
Difference be: the lower edges of the polarizing beam splitter 320 of present embodiment are wider, and therefore, the second reflecting surface 326 and first is partially
Farther apart between vibration spectro-film 330, the second reflecting surface 326 and the first polarization beam splitter 330 be not on polarizing beam splitter 320
Intersect (but the extension line of the two can intersect), it therefore, can be by this embodiment party at a distance of farther first P light A and the 2nd P light B
The wave multiplexer of formula carries out multiplex.
Fig. 6 is referred to, the wave multiplexer 400 that four embodiment of the invention provides includes polarizing beam splitter 420 and polarization point
The combined quarter-wave plate 422 of light device 420, the first reflecting surface 426 combined with quarter-wave plate 422, polarizing beam splitter
420 include the first polarization beam splitter 430, is represented by dotted lines in the first P light A(figure) it is projected through the first polarization beam splitter 430, the
Indicated in two P light B(figures with two point chain-dotted line) inject quarter-wave plate 422 after, through the first reflecting surface 426 reflection after return to four
/ mono- wave plate 422 becomes S light, S light after the reflection of the first polarization beam splitter 430 with the first P light A multiplex.
Present embodiment is preferred, and wave multiplexer 400 includes filter plate 438, filter plate 438 and the first polarization beam splitter 430
Vertically, the characteristic of filter plate 438 is, for example, the light beam of energy reflected wavelength lambda 2, while the light beam of wavelength X 3 being allowed to pass through, wavelength λ
2 the 2nd P light B and the first P light A are parallel incident, and the 2nd P light B passes through the first polarization beam splitter after the reflection of the first filter plate 438
430 inject quarter-wave plate 422, and quarter-wave plate 422 is returned after the reflection of the first reflecting surface 426 becomes S light, S light warp
Cross the first polarization beam splitter 430 reflection after with the first P light A multiplex.
Parallel as a result, and setting spaced apart the first P light A and the 2nd P light B complete multiplex by wave multiplexer 400,
400 structure of wave multiplexer is simple, and order of reflection is few, easy to process, so that production cost be effectively reduced.
Refer to Fig. 7, unlike Fig. 6, the wavelength of the 2nd P light B is λ 3, the 2nd P light B it is vertical with the first P light A enter
It penetrates, the 2nd P light B injects quarter-wave plate 422 after successively passing through filter plate 438 and the first polarization beam splitter 430, anti-through first
Penetrate and return to quarter-wave plate 422 after face 426 is reflected and become S light, S light after the reflection of the first polarization beam splitter 430 with the first P
Light A multiplex.
The first P light A and the 2nd P light B of vertical incidence complete multiplex, 400 knot of wave multiplexer by wave multiplexer 400 as a result,
Structure is simple, and order of reflection is few, easy to process, so that production cost be effectively reduced.
Fig. 8 is referred to, the wave multiplexer 500 of fifth embodiment of the invention can be regarded as the wave multiplexer of first embodiment
100 and the 4th embodiment wave multiplexer 400 combination.
Specifically, wave multiplexer 500 includes polarizing beam splitter 520, the quarter-wave plate combined with polarizing beam splitter 520
522, the first reflecting surface 526 combined with quarter-wave plate 522, polarizing beam splitter 520 include the first polarization beam splitter 530,
It is represented by dotted lines in first P light A(figure) it is projected through the first polarization beam splitter 530.
Wave multiplexer 500 includes the second reflecting surface 532, and the second reflecting surface 532 is vertical with the first polarization beam splitter 530 (to be extended
Line is vertical), wave multiplexer 500 is equipped with the first filter plate 542 and the between the second reflecting surface 532 and the first polarization beam splitter 530
Two filter plates 546, the first filter plate 542 is parallel with the second reflecting surface 532, and the second filter plate 546 and the first filter plate 542 are flat
Row.
The light beam that it can be for example λ 3 with reflection wavelength that first filter plate 542, which is set as, and wavelength is allowed to be the light of λ 2 and λ 4
Beam passes through.Second filter plate 546 is set as reflection wavelength and is the light beam of λ 4, and wavelength is allowed to be that the light beam of λ 2 passes through.
The 2nd P light B(wavelength is λ 2 as a result) it is parallel incident with the first P light A, the 2nd P light B is reflected through the second reflecting surface 532
After successively pass through and inject quarter-wave plate 522 after the second filter plate 546, the first filter plate 542, the first polarization beam splitter 530,
Quarter-wave plate 522 is returned after the reflection of the first reflecting surface 526 becomes S light, and S light is reflected by the first polarization beam splitter 530
Afterwards with the first P light A multiplex.
3rd P light C(wavelength is λ 3) it is parallel incident with the first P light A, the 3rd P light C is worn after the reflection of the first filter plate 542
It crosses the first polarization beam splitter 530 and injects quarter-wave plate 522, return to quarter-wave after the reflection of the first reflecting surface 526
Piece 522 becomes S light, S light after the reflection of the first polarization beam splitter 530 with the first P light A multiplex.
4th P light D and the first P light A are parallel incident, and the 4th P light D successively passes through first after the reflection of the second filter plate 546
Quarter-wave plate 522 is injected after filter plate 542, the first polarization beam splitter 530, returns to four after the reflection of the first reflecting surface 526
/ mono- wave plate 522 becomes S light, S light after the reflection of the first polarization beam splitter 530 with the first P light A multiplex.
Parallel as a result, and setting spaced apart the first P light A to the 4th P light D completes multiplex by wave multiplexer 500,
500 structure of wave multiplexer is simple, and order of reflection is few, easy to process, so that production cost be effectively reduced.
The present invention also provides compound wave multiplexer, compound wave multiplexer may include two or more aforementioned any implementations
The wave multiplexer that mode provides, these wave multiplexers press array arrangement.
Fig. 9 is referred to, the first compound wave multiplexer 600 that embodiment of the present invention provides includes two first embodiments
The wave multiplexer of offer, wherein two quarter-wave plates 622 of two wave multiplexers be located at two polarizing beam splitters 620 it
Between.Two-beam can be carried out multiplex by each wave multiplexer, four bundles light can be carried out two by the compound wave multiplexer of present embodiment
Two multiplex.Optics strip is easy to process, easy for installation.
It may occur to persons skilled in the art that the wave multiplexer that wave multiplexer can also be provided using two other embodiments.
Those skilled in the art are further envisioned that the wave multiplexer for forming compound wave multiplexer can be the wave multiplexer of different embodiments offer
Combination all of these repeat no more, it is all using with the same or similar scheme of present embodiment being encompassed by guarantor of the invention
It protects in range.
Figure 10 shows second of compound wave multiplexer 700 of embodiment of the present invention offer, the compound wave multiplexer with Fig. 9
600 the difference lies in that two quarter-wave plates 722 of two wave multiplexers of the compound wave multiplexer 700 of present embodiment are located at
Except two polarizing beam splitters 720.Four bundles light can be carried out multiplex two-by-two by the compound wave multiplexer 700 of present embodiment.
Figure 11 shows the third compound wave multiplexer 800 of embodiment of the present invention offer, and the compound wave multiplexer is in Fig. 9 institute
It further include the reflecting mirror 848 combined with the emergent light of first wave multiplexer and second on the basis of the compound wave multiplexer 600 shown
The filter plate 850 of the emergent light combination of a wave multiplexer, reflecting mirror 848 is parallel with the first reflecting surface, filter plate 850 and reflecting mirror
848 is parallel, and filter plate 850 allows the emergent light of the second wave multiplexer to penetrate and the emergent light of the first wave multiplexer of reflection.As a result, second
The emergent light of a wave multiplexer is directed through the injection of filter plate 850, and the emergent light of first wave multiplexer is through 848 He of the first reflecting mirror
Emergent light multiplex after the reflection of filter plate 850 with the second wave multiplexer, so that compound wave multiplexer completes the multiplex of four bundles light.
Figure 12 shows the 4th kind of compound wave multiplexer 900 of embodiment of the present invention offer, which is scheming
On the basis of compound wave multiplexer 700 shown in 10, further include the reflecting mirror 948 combined with the emergent light of first wave multiplexer, with
The filter plate 950 of the emergent light combination of second wave multiplexer, reflecting mirror 948 is parallel with the first reflecting surface, filter plate 950 and reflection
Mirror 948 is parallel, and filter plate 950 allows the emergent light of the second wave multiplexer to penetrate and the emergent light of the first wave multiplexer of reflection.As a result,
The emergent light of two wave multiplexers is directed through the injection of filter plate 950, and the emergent light of first wave multiplexer is through the first reflecting mirror 948
Emergent light multiplex after being reflected with filter plate 950 with the second wave multiplexer, so that compound wave multiplexer completes the multiplex of four bundles light.
In embodiment of the present invention, the first reflecting surface can be fitted in quarter-wave on piece, and the first reflecting surface can also be with
It is arranged on the reflecting mirror combined with quarter-wave plate, all use is encompassed by with the same or similar scheme of present embodiment
In protection scope of the present invention.Reflecting surface can be any one in internal reflection, high-reflecting film, monolithic reflecting mirror.
In embodiment of the present invention, quarter-wave plate can be fixed with polarizing beam splitter by optical cement, quarter-wave
Piece can also be fixed with polarizing beam splitter by viscose glue, all to be encompassed by this using with the same or similar scheme of present embodiment
In the protection scope of invention.
As a result, the present invention using polarized composite wave and polarization spectro principle (polarised light of laser output has unicity,
That is the laser of laser output has polarization characteristic or is S-polarization or is P polarization.Polarization beam splitter allows P light transmission
And reflect S light), so that more than two beams or two beams laser completes multiplex by wave multiplexer or compound wave multiplexer, and wave multiplexer and
Compound wave multiplexer structure is simple, and order of reflection is few, easy to process, so that production cost be effectively reduced.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of wave multiplexer, it is characterised in that: the wave multiplexer is combined including the first polarization beam splitter, with the polarization beam splitter
Quarter-wave plate, the first reflecting surface for being combined with the quarter-wave plate, the quarter-wave plate is relative to described
First polarization beam splitter is obliquely installed, and first reflecting surface and the quarter-wave plate are arranged in parallel；When mutually vertical
Same position from straight the first P light and the 2nd P light emission to the polarization beam splitter when, the first P light through described first partially
The spectro-film that shakes projects, and the 2nd P light injects the quarter-wave plate after passing through first polarization beam splitter, through described the
The quarter-wave plate is returned after one reflective surface becomes S light, and the S light is after first polarization beam splitter reflection
With the photosynthetic wave of the first P.
2. wave multiplexer according to claim 1, it is characterised in that: the wave multiplexer include the second reflecting surface, described second
Reflecting surface is vertical with first polarization beam splitter, when the 2nd P light and the first P light are parallel incident, the 2nd P light
First polarization beam splitter is passed through after second reflective surface injects the quarter-wave plate.
3. wave multiplexer according to claim 2, it is characterised in that: the wave multiplexer is in second reflecting surface and described the
The first filter plate is equipped between one polarization beam splitter, first filter plate is parallel with second reflecting surface, when the 3rd P light emission
To first filter plate, the 3rd P light passes through first polarization beam splitter and injects after first filter plate reflection
The quarter-wave plate；The 2nd P light successively passes through first filter plate and institute after second reflective surface
It states the first polarization beam splitter and injects the quarter-wave plate.
4. wave multiplexer according to claim 1, it is characterised in that: the wave multiplexer includes the second polarization beam splitter, described
Second polarization beam splitter is vertical with first polarization beam splitter, when the 2nd P light and the first P light are parallel incident, institute
It states the first P light to project through first polarization beam splitter, the 2nd P light injects institute after passing through second polarization beam splitter
Quarter-wave plate is stated, the quarter-wave plate is returned after first reflective surface becomes S light, and the S light is through institute
State the second polarization beam splitter, after first polarization beam splitter sequentially reflects with the photosynthetic wave of the first P.
5. wave multiplexer according to claim 1, it is characterised in that: the wave multiplexer includes filter plate, the filter plate with
First polarization beam splitter is vertical, and when the 2nd P light and the first P light are parallel incident, the 2nd P light is through described
First polarization beam splitter, which is passed through, after the reflection of one filter plate injects the quarter-wave plate；Or when the 2nd P light with
The first P light vertical incidence, the 2nd P light successively pass through described in the filter plate and first polarization beam splitter injection
Quarter-wave plate.
6. wave multiplexer according to claim 1, it is characterised in that: first reflecting surface is fitted in the quarter-wave
On piece or first reflecting surface are arranged on the reflecting mirror combined with the quarter-wave plate.
7. wave multiplexer according to claim 1, it is characterised in that: first polarization beam splitter is arranged in polarizing beam splitter
On, the quarter-wave plate is fixed with the polarizing beam splitter by optical cement or viscose glue.
8. a kind of compound wave multiplexer, it is characterised in that: the compound wave multiplexer includes two or more claims 1 to 7
Any wave multiplexer, described two or more than two wave multiplexers press array arrangement.
9. compound wave multiplexer as claimed in claim 8, it is characterised in that: first polarization beam splitter is arranged in polarization spectro
On device, the compound wave multiplexer includes two wave multiplexers, and two quarter-wave plates of described two wave multiplexers are located at two institutes
It states between polarizing beam splitter or is located at except two polarizing beam splitters.
10. compound wave multiplexer as claimed in claim 8, it is characterised in that: the compound wave multiplexer includes two wave multiplexers, institute
Stating compound wave multiplexer further includes the reflecting mirror combined with the outgoing of first wave multiplexer in two wave multiplexers and second multiplex
The combined filter plate of the outgoing of device, the reflecting mirror is parallel with first reflecting surface, and the filter plate and the reflecting mirror are flat
Row, the filter plate allow the emergent light of the second wave multiplexer to penetrate and the emergent light of the first wave multiplexer of reflection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942810.2A CN109656027A (en) | 2017-10-11 | 2017-10-11 | Wave multiplexer and compound wave multiplexer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942810.2A CN109656027A (en) | 2017-10-11 | 2017-10-11 | Wave multiplexer and compound wave multiplexer |
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| CN109656027A true CN109656027A (en) | 2019-04-19 |
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| CN201710942810.2A Pending CN109656027A (en) | 2017-10-11 | 2017-10-11 | Wave multiplexer and compound wave multiplexer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444913A (en) * | 2019-09-03 | 2021-03-05 | 宇捷光子科技(南京)有限公司 | Wavelength sensitive polarization device and wavelength division multiplexer for multichannel transmitting signals thereof |
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Application publication date: 20190419 |