CN203551836U - Hundred-watt high-isolation collimation type optical isolator - Google Patents
Hundred-watt high-isolation collimation type optical isolator Download PDFInfo
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- CN203551836U CN203551836U CN201320642939.9U CN201320642939U CN203551836U CN 203551836 U CN203551836 U CN 203551836U CN 201320642939 U CN201320642939 U CN 201320642939U CN 203551836 U CN203551836 U CN 203551836U
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- optoisolator
- optical fiber
- chipware
- housing
- isolation
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- 238000002955 isolation Methods 0.000 title claims abstract description 35
- 230000003287 optical effect Effects 0.000 title claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 49
- 239000013307 optical fiber Substances 0.000 claims abstract description 36
- 239000013078 crystal Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 21
- 230000010287 polarization Effects 0.000 claims description 19
- 229910000906 Bronze Inorganic materials 0.000 claims description 6
- 239000010974 bronze Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 13
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 241000219739 Lens Species 0.000 description 34
- 210000000695 crystalline len Anatomy 0.000 description 34
- 239000000835 fiber Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005253 cladding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910009372 YVO4 Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The utility model discloses a hundred-watt high-isolation collimation type optical isolator comprising a cooling device (1), a die peeling device (2), an optical fiber collimator (3), and a beam expander (7). A die peeling device (2), an optical collimator (3), a first optical isolator core (4), two symmetrically-arranged reflectors (5), a second optical isolator core (6), and the beam expander (7) are sequentially disposed in a cooling device (1) along an incident optical axis of a positive light. The die peeling device (2) is connected with the optical collimator (3) by an optical fiber (8). The hundred-watt high-isolation collimation type optical isolator has advantages of high isolation degree, good heat dissipation effect, stable working performance, and applicability in large power pulse laser.
Description
Technical field
The utility model relates to a kind of optoisolator, a kind of hectowatt grade high-isolation collimation-type optoisolator particularly, belong to Laser Processing, i.e. cut, laser bonding, laser engraving and laser 3D printing etc., laser weapon, laser radar communication and laser sensing field.
Background technology
Semiconductor laser, image intensifer and fiber laser etc. are for very responsive from the reflected light of connector, fusion point, wave filter etc., and may cause performance to worsen even damaging, therefore need to stop reflected light with optoisolator.Optoisolator be only allow light along a direction by and in contrary direction, stop the optical passive component that light passes through.Its effect is to prevent that the reverse transfer light producing due to a variety of causes in light path from producing harmful effect to light source and light path system.
But present stage the optoisolator power that can carry and the degree of isolation that can reach all not high enough, affected dramatically the development of high-end hectowatt grade fiber laser.Therefore, high-end hectowatt grade optoisolator and its high-isolation are breaches of improving high-end fiber laser performance.
The overwhelming majority of current domestic use is some low power optoisolators, often between several watts to tens watts, reaches more than hectowatt grade optoisolator seldom.Because when it come to tend to because technical reason easily occur the phenomenons such as insertion loss is large, radiating effect is bad, and the isolation of existing optoisolator is not high, job stability is poor to high power.In sum, develop a kind of optoisolator of high-end hectowatt grade high-isolation imperative.
Utility model content
The purpose of this utility model is, a kind of hectowatt grade high-isolation collimation-type optoisolator is provided, it has advantages of high-isolation, good heat dissipation effect and stable work in work, can be used to well in the laser optics applications such as high-power pulsed laser, high power CW laser instrument.
The technical solution of the utility model: a kind of hectowatt grade high-isolation collimation-type optoisolator, comprise cooling device, mode stripper, optical fiber collimator and beam expanding lens, in cooling device, along being provided with successively mode stripper, optical fiber collimator, the first optoisolator chipware, 2 symmetrically arranged catoptrons, the second optoisolator chipware and beam expanding lens on forward light incident light axis, mode stripper is connected with optical fiber collimator by optical fiber.By mode stripper is set, pump light that can cancellation remnants, can also divest the laser that drains to the higher order mode transmitting inner cladding from fibre core.By cooling device is set, make heat eliminating medium directly hold directly and contact with optical device heat, greatly improve radiating effect, thereby improved the stability of optoisolator, make it under long high power work state, still can keep stable work.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, described optical fiber collimator comprises patch cord and lens, and patch cord scioptics are connected with the light path of the first optoisolator chipware; The afterbody of patch cord is provided with end cap.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, described the first optoisolator chipware is identical with the structure of the second optoisolator chipware, includes along the first birefringece crystal setting gradually on forward light incident light axis, Faraday polarization apparatus, 1/2 wave plate and the second birefringece crystal; Described 1/2 wave plate passes through ultra-violet curing glue on the light inlet end face of the second birefringece crystal.The first birefringece crystal and the second birefringece crystal all adopt YVO4 crystal.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, also comprise magnetic tube, described Faraday polarization apparatus is located in magnetic tube, and the first birefringece crystal and the second birefringece crystal are located at respectively the two ends of magnetic tube (16); The optically-active angle of described Faraday polarization apparatus is 45 °.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, the angle between described 2 catoptrons and optical axis is 40 °～50 °; Described catoptron adopts ceramic reflecting mirror, bronze mirror or high anti-catoptron.Between described 2 catoptrons, form a very little gap, the effect of diaphragm is played in this gap.Catoptron can adopt ceramic reflecting mirror, bronze mirror or high anti-catoptron, also can adopt the good material of other reflective function to make.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, described beam expanding lens comprises negative lens and the positive lens setting gradually along on forward light incident light axis.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, a side that is provided with positive lens in described cooling device is provided with large diaphragm; Between optical fiber collimator and the first optoisolator chipware, be provided with little diaphragm.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, described cooling device comprises housing, cooling chamber, inlet and liquid outlet, the two ends of described housing are equipped with inlet and liquid outlet, inlet is located at the below of housing, and liquid outlet is located at the top of housing, is hollow structure between the outer wall of housing and inwall, described inlet is connected with this hollow structure with liquid outlet, cooling chamber is arranged on the one end in housing, and cooling chamber is communicated with hollow structure, and mode stripper is located in cooling chamber.Described inwall is also filled with heat eliminating medium in the hollow structure between outer wall, and heat eliminating medium adopts water or oil; Cooling chamber is set in one end of housing and mode stripper is arranged in cooling chamber, object is for film device can directly be contacted with heat eliminating medium, better heat radiation.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, in described housing, the inwall corresponding with reflector position is provided with the diaphragm of F:-10～0mm.
In aforesaid hectowatt grade high-isolation collimation-type optoisolator, in described housing, the inwall corresponding with reflector position is provided with the diaphragm of F:-5mm.
Compared with prior art, the utility model, by cooling device is set, has effectively improved radiating effect, thereby has improved the stability of optoisolator, makes it under long high power work state, still can keep stable work.By on the inwall of housing, diaphragm being set, can by the beam divergence reflecting along light path in heat eliminating medium, effectively prevent that reflected light from shining directly on inwall, play on the one hand the effect of protection inwall, can more effectively dispel the heat on the other hand.
By mode stripper is set, before light incides collimating apparatus, first shell mould and process, divest harmful light, can also divest the laser that drains to the higher order mode transmitting inner cladding from fibre core, effectively protect collimating apparatus.Adopt the collimating apparatus of end cap and lens combination can make it than the larger power of traditional collimating apparatus carrying.
By 2 optoisolator chipwares being set and coordinating 2 symmetrically arranged catoptrons jointly to use, make the utility model fully realize the high-isolation of optoisolator.
Accompanying drawing explanation
Fig. 1 is the logical light schematic diagram of forward of the present utility model;
Fig. 2 is oppositely logical light schematic diagram of the present utility model;
Fig. 3 is the structural representation of cooling device.
Being labeled as in accompanying drawing: 1-cooling device, 2-mode stripper, 3-optical fiber collimator, 4-the first optoisolator chipware, 5-catoptron, 6-the second optoisolator chipware, 7-beam expanding lens, 8-optical fiber, 9-patch cord, 10-lens, 11-end cap, 12-the first birefringece crystal, 13-Faraday polarization apparatus, 14-1/2 wave plate, 15-the second birefringece crystal, 16-magnetic tube, 17-negative lens, 18-positive lens, the large diaphragm of 19-, the little diaphragm of 20-, 21-cooling chamber, 22-inlet, 23-liquid outlet, 24-housing, 25-diaphragm.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, but not as the utility model being done to the foundation of any restriction.
Described the first optoisolator chipware 4 is identical with the structure of the second optoisolator chipware 6, includes along the first birefringece crystal 12 setting gradually on forward light incident light axis, Faraday polarization apparatus 13,1/2 wave plate 14 and the second birefringece crystal 15; Described 1/2 wave plate 14 passes through ultra-violet curing glue on the light inlet end face of the second birefringece crystal 15.Angle between 2 catoptrons 5 and optical axis is 45 °; Described catoptron 5 adopts ceramic reflecting mirror, bronze mirror or high anti-catoptron.
As shown in Figure 3, cooling device 1 comprises housing 24, cooling chamber 21, inlet 22 and liquid outlet 23, the two ends of described housing 24 are equipped with inlet 22 and liquid outlet 23, inlet 22 is located at the below of housing 24, and liquid outlet 23 is located at the top of housing 24, is hollow structure between the outer wall of housing 24 and inwall, described inlet 22 is connected with this hollow structure with liquid outlet 23, cooling chamber 21 is arranged on the one end in housing 24, and cooling chamber 21 is communicated with hollow structure, and mode stripper 2 is located in cooling chamber 21.In described housing 24, the inwall corresponding with catoptron 5 positions is provided with the diaphragm 25 of F:-5mm.
Described the first optoisolator chipware 4 is identical with the structure of the second optoisolator chipware 6, includes along the first birefringece crystal 12 setting gradually on forward light incident light axis, Faraday polarization apparatus 13,1/2 wave plate 14 and the second birefringece crystal 15; Described 1/2 wave plate 14 passes through ultra-violet curing glue on the light inlet end face of the second birefringece crystal 15.Angle between 2 catoptrons 5 and optical axis is 40 °; Described catoptron 5 adopts ceramic reflecting mirror, bronze mirror or high anti-catoptron.
As shown in Figure 3, cooling device 1 comprises housing 24, cooling chamber 21, inlet 22 and liquid outlet 23, the two ends of described housing 24 are equipped with inlet 22 and liquid outlet 23, inlet 22 is located at the below of housing 24, and liquid outlet 23 is located at the top of housing 24, is hollow structure between the outer wall of housing 24 and inwall, described inlet 22 is connected with this hollow structure with liquid outlet 23, cooling chamber 21 is arranged on the one end in housing 24, and cooling chamber 21 is communicated with hollow structure, and mode stripper 2 is located in cooling chamber 21.In described housing 24, the inwall corresponding with catoptron 5 positions is provided with the diaphragm 25 of F:-10mm.
Described the first optoisolator chipware 4 is identical with the structure of the second optoisolator chipware 6, includes along the first birefringece crystal 12 setting gradually on forward light incident light axis, Faraday polarization apparatus 13,1/2 wave plate 14 and the second birefringece crystal 15; Described 1/2 wave plate 14 passes through ultra-violet curing glue on the light inlet end face of the second birefringece crystal 15.Angle between 2 catoptrons 5 and optical axis is 50 °; Described catoptron 5 adopts ceramic reflecting mirror, bronze mirror or high anti-catoptron.
As shown in Figure 3, cooling device 1 comprises housing 24, cooling chamber 21, inlet 22 and liquid outlet 23, the two ends of described housing 24 are equipped with inlet 22 and liquid outlet 23, inlet 22 is located at the below of housing 24, and liquid outlet 23 is located at the top of housing 24, is hollow structure between the outer wall of housing 24 and inwall, described inlet 22 is connected with this hollow structure with liquid outlet 23, cooling chamber 21 is arranged on the one end in housing 24, and cooling chamber 21 is communicated with hollow structure, and mode stripper 2 is located in cooling chamber 21.In described housing 24, the inwall corresponding with catoptron 5 positions is provided with the diaphragm 25 of F:0mm.
Principle of work of the present utility model: as shown in Figure 1, light positive is to when transmission, and light enters optical fiber collimator 3 by mode stripper 2 by end cap 11, and the light beam of transmission in optical fiber 8 is converted into collimated light, improves coupling efficiency.Then light enters the first birefringece crystal 12 on the first optoisolator chipware 4, be divided into o light and e light, both rapidly separately certain angle transmission enter the Faraday polarization apparatus 13 of 45 °, by Faraday polarization apparatus 13, the vibration plane of o light and e light separately to same direction rotation 45 °.Postrotational o light and e light, after 1/2 wave plate 14, have all changed 45 ° to same direction again.O light now and e light enter the second birefringece crystal 15, close light and incide on the second optoisolator chipware 6, and the light that closes after the two the second optoisolator chipwares 6 are processed incides beam expanding lens 7 bright dippings, have realized the forward transmission of light.
As shown in Figure 2, when light path is reverse, first light pass through large diaphragm 19 and beam expanding lens 7, and then incide in the second birefringece crystal 9 of the second optoisolator chipware 6, is divided into fast o light and e light.The o light returning and e light are through the effect of 1/2 wave plate 15, and its vibration plane has changed 45 ° to same direction again separately.Due to the nonreciprocity of Faraday effect, o light and e light are by after Faraday rotator 13, and polarization direction is still to 45 ° of same direction rotations, and original like this o light has become e light and o light after entering the first birefringece crystal 12 with e light.Due to the difference of refractive index, this two separating light beam no longer pools a light beam along original light path, makes on the contrary its separated distance increase.By the reflection of catoptron 5, o light and e light are reflected away separately with the direction perpendicular to 90 °, optical axis respectively, then diffuse in the heat eliminating medium in housing 24 through the effect of diaphragm 25.Part is injected into the light of the first optoisolator chipware 4 by the aperture between catoptron, be divided into arduous larger o light and e light under the effect of the first optoisolator chipware 4, and o light and e light are blocked and can not be injected in light collimating apparatus 3 by little optical cable 20.
The heat producing in these two processes, through the circulation of apparatus for supercooling 1 interior heat eliminating medium, takes out of rapidly, thereby has reached good radiating effect.Heat eliminating medium adopts water or oil.
Claims (9)
1. a hectowatt grade high-isolation collimation-type optoisolator, it is characterized in that: comprise cooling device (1), mode stripper (2), optical fiber collimator (3) and beam expanding lens (7), in cooling device (1), along being provided with successively mode stripper (2), optical fiber collimator (3), the first optoisolator chipware (4), 2 symmetrically arranged catoptrons (5), the second optoisolator chipware (6) and beam expanding lens (7) on forward light incident light axis, mode stripper (2) is connected with optical fiber collimator (3) by optical fiber (8).
2. hectowatt grade high-isolation collimation-type optoisolator according to claim 1, it is characterized in that: described optical fiber collimator (3) comprises patch cord (9) and lens (10), patch cord (9) scioptics (10) are connected with the light path of the first optoisolator chipware (4); The afterbody of patch cord (9) is provided with end cap (11).
3. hectowatt grade high-isolation collimation-type optoisolator according to claim 1, it is characterized in that: described the first optoisolator chipware (4) is identical with the structure of the second optoisolator chipware (6), include along the first birefringece crystal (12) setting gradually on forward light incident light axis, Faraday polarization apparatus (13), 1/2 wave plate (14) and the second birefringece crystal (15); Described 1/2 wave plate (14) passes through ultra-violet curing glue on the light inlet end face of the second birefringece crystal (15).
4. hectowatt grade high-isolation collimation-type optoisolator according to claim 3, it is characterized in that: also comprise magnetic tube (16), described Faraday polarization apparatus (13) is located in magnetic tube (16), and the first birefringece crystal (12) and the second birefringece crystal (15) are located at respectively the two ends of magnetic tube (16); The optically-active angle of described Faraday polarization apparatus (13) is 45 °.
5. hectowatt grade high-isolation collimation-type optoisolator according to claim 1, is characterized in that: the angle between described 2 catoptrons (5) and optical axis is 40 °～50 °; Described catoptron (5) adopts ceramic reflecting mirror, bronze mirror or high anti-catoptron.
6. hectowatt grade high-isolation collimation-type optoisolator according to claim 1, is characterized in that: described beam expanding lens (7) comprises along the negative lens (17) setting gradually on forward light incident light axis and positive lens (18).
7. hectowatt grade high-isolation collimation-type optoisolator according to claim 6, is characterized in that: a side that is provided with positive lens (18) in described cooling device (1) is provided with large diaphragm (19); Between optical fiber collimator (3) and the first optoisolator chipware (4), be provided with little diaphragm (20).
8. according to the hectowatt grade high-isolation collimation-type optoisolator described in any one in claim 1～7, it is characterized in that: described cooling device (1) comprises housing (24), cooling chamber (21), inlet (22) and liquid outlet (23), the two ends of described housing (24) are equipped with inlet (22) and liquid outlet (23), inlet (22) is located at the below of housing (24), liquid outlet (23) is located at the top of housing (24), between the outer wall of housing (24) and inwall, it is hollow structure, described inlet (22) is connected with this hollow structure with liquid outlet (23), cooling chamber (21) is arranged on the one end in housing (24), cooling chamber (21) is communicated with hollow structure, mode stripper (2) is located in cooling chamber (21).
9. hectowatt grade high-isolation collimation-type optoisolator according to claim 8, is characterized in that: in described housing (24), the inwall corresponding with catoptron (5) position is provided with the diaphragm (25) of F:-10～0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642939.9U CN203551836U (en) | 2013-10-17 | 2013-10-17 | Hundred-watt high-isolation collimation type optical isolator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642939.9U CN203551836U (en) | 2013-10-17 | 2013-10-17 | Hundred-watt high-isolation collimation type optical isolator |
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| Publication Number | Publication Date |
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| CN203551836U true CN203551836U (en) | 2014-04-16 |
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| CN201320642939.9U Expired - Lifetime CN203551836U (en) | 2013-10-17 | 2013-10-17 | Hundred-watt high-isolation collimation type optical isolator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605183A (en) * | 2013-10-17 | 2014-02-26 | 深圳市创鑫激光技术有限公司 | Hectowatt-level high-isolation collimating-type optical isolator |
| CN106773150A (en) * | 2017-01-22 | 2017-05-31 | 北京凯普林光电科技股份有限公司 | High-power liquid cold light isolator |
-
2013
- 2013-10-17 CN CN201320642939.9U patent/CN203551836U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605183A (en) * | 2013-10-17 | 2014-02-26 | 深圳市创鑫激光技术有限公司 | Hectowatt-level high-isolation collimating-type optical isolator |
| CN103605183B (en) * | 2013-10-17 | 2015-03-25 | 深圳市创鑫激光股份有限公司 | Hectowatt-level high-isolation collimating-type optical isolator |
| CN106773150A (en) * | 2017-01-22 | 2017-05-31 | 北京凯普林光电科技股份有限公司 | High-power liquid cold light isolator |
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| CP03 | Change of name, title or address |
Address after: 518103, Guangdong, Shenzhen, Baoan District manhole street and a community third industrial zone, Ming Xin Industrial Park, first, third, B Patentee after: MAXPHOTONICS Co.,Ltd. Address before: 518104, Guangdong, Shenzhen, Baoan District manhole, South Ring Road and a community third industrial zone, Ming Industrial Park, the first third West Patentee before: MAXPHOTONICS Co.,Ltd. |
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Address after: 518125 Building A2, Building A3, Building 2-3, Building A4, Building A5, Building 6, Building A2, Furong Third Road, Shajing Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: MAXPHOTONICS Co.,Ltd. Address before: 518103 Shajing Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: MAXPHOTONICS Co.,Ltd. |
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Granted publication date: 20140416 |
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