CN2532496Y - Double-sided double optical fiber head - Google Patents
Double-sided double optical fiber head Download PDFInfo
- Publication number
- CN2532496Y CN2532496Y CN 01273160 CN01273160U CN2532496Y CN 2532496 Y CN2532496 Y CN 2532496Y CN 01273160 CN01273160 CN 01273160 CN 01273160 U CN01273160 U CN 01273160U CN 2532496 Y CN2532496 Y CN 2532496Y
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- China
- Prior art keywords
- optical fiber
- double
- optical
- sided
- fiber head
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- Expired - Lifetime
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 66
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 10
- 230000010287 polarization Effects 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses a two-sided two optical fiber head includes a glass capillary, two optic fibre, and wherein two optic fibre are fixed in the glass capillary, and two optic fibre emergent terminal surfaces are not on the coplanar. The end face of the optical fiber can be plated with an antireflection film, and the optical fiber can be a single-mode optical fiber, a multi-mode optical fiber or a polarization maintaining optical fiber and the like. The double-sided double-optical-fiber head with the structure can flexibly change the included angle of emergent light by changing the angle and the position of the emergent end faces of the two optical fibers, so that an optical fiber device has a larger working interval, can be widely applied to a collimator, an isolator, a circulator, an optical switch, a wavelength division multiplexer and the like, and can also be used for novel optical fiber devices with complicated internal structures.
Description
Technical field
The utility model relates to a kind of two-sided double optical fiber head that can be used for optical-fibre communications field.
Background technology
Double optical fiber head is widely used in the optical fibre device of Fiber Optical Communication System and optical fiber sensing system, is the primary element of these optical fibre devices, and its purposes is in optical fibre device optical fiber to be positioned.At present the double optical fiber head that uses exists following shortcoming: function singleness, two fiber end faces of double optical fiber head at grade, light beam keeping parallelism still after the double optical fiber head outgoing lacks dirigibility, has limited the operation interval of optical fibre device.
Summary of the invention
The purpose of this utility model is to provide a kind of can make two light beams after the outgoing not parallel, and the outgoing end face angle that can change flexibly and the two-sided double optical fiber head of spacing are arranged, and makes optical fibre device that bigger operation interval be arranged.
The utility model adopts following structure to realize above-mentioned purpose, and two-sided double optical fiber head comprises a glass capillary, two optical fiber, and wherein two optical fiber are fixed in the glass capillary, and two optical fiber outgoing end faces are not at grade.
In addition, can on fiber end face, be coated with anti-reflection film.
Simultaneously, optical fiber can be single-mode fiber, multimode optical fiber or polarization maintaining optical fibre etc.
Two-sided double optical fiber head behind the employing said structure, can be by changing the angle and the position of two optical fiber outgoing end faces, thereby change the angle of emergent ray flexibly, make optical fibre device that bigger operation interval be arranged, it not only can be widely used in collimating apparatus, isolator, circulator, photoswitch, wavelength division multiplexer etc., can also be used for the novel optical fiber device of inner structure complexity.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model end face enlarged drawing.
Fig. 3 is that the utility model is used for the double-fiber collimator structural representation.
Fig. 4 is another example structure synoptic diagram of the utility model.
Fig. 5 is another embodiment end face enlarged drawing of the utility model.
Embodiment
As shown in Figure 1, 2, a kind of two-sided double optical fiber head comprises a glass capillary 1, two optical fiber 2,3, and wherein optical fiber 2, optical fiber 3 are fixed in the glass capillary 1, and the outgoing end face 5 of the outgoing end face 4 of optical fiber 2 and optical fiber 3 is not at grade.
Principle of work of the present utility model is such: light beam is when the end face 4,5 of double optical fiber head comes out, and is because not at grade, there is certain included angle in both ends of the surface 4,5 as both ends of the surface 4,5, according to refraction law, no longer parallel after the two-beam outgoing.
The optical fiber 2,3 that the utility model adopts can be single-mode fiber, multimode optical fiber or polarization maintaining optical fibre etc.
The utility model is described in further detail in conjunction with practical example, is illustrated in figure 3 as the example that the utility model is used for long cross distance double-fiber collimator.Double-fiber collimator is by two-sided double optical fiber head, lens 9, glass bushing 8, and metal sleeve 7 is formed.The angle of the both ends of the surface of two-sided double optical fiber head is 164 °, and two shaft axis of optic fibre spacings are 146 μ m, and both ends of the surface are all plated anti-reflection film.Light (is dispersed) outgoing dorsad outwardly during from the fiber end face outgoing, assembles through lens again.With respect to the common double optical fiber collimator of light from the parallel outgoing of fiber end face, two light of this double-fiber collimator are after lens are assembled, reduce with the angle of the axis of collimating apparatus, light from wheelbase from increase, therefore cross distance increases greatly, can reach more than the 8mm, and the cross distance of common double-fiber collimator has only 2mm many, promptly the operation interval of the optical fibre device made from this collimating apparatus increases greatly, and inserts that other aspects such as loss, return loss have and the same high performance index of common double optical fiber collimator.
In addition the angle of two fiber end faces is that 196 ° two-sided double optical fiber head (as Fig. 4,5) also has same effect.
This novel alignment utensil has the profile the same with traditional collimating apparatus, cross distance is long and cross distance is adjustable, the outgoing hot spot is little, the coupling efficiency height, its cross distance is the longest to be reached more than the 10mm, not only photoswitch, wavelength division multiplexer etc. can be used for, the complicated novel optical fiber device of inner structure can also be used to research and develop.
Claims (3)
1. two-sided double optical fiber head comprises a glass capillary, two optical fiber, it is characterized in that described two optical fiber are fixed in the glass capillary, and the outgoing end face of two optical fiber is not at grade.
2. two-sided double optical fiber head according to claim 1 is characterized in that described two optical fiber outgoing end faces are coated with anti-reflection film.
3. two-sided double optical fiber head according to claim 1 is characterized in that described optical fiber can be single-mode fiber, multimode optical fiber or polarization maintaining optical fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273160 CN2532496Y (en) | 2001-12-27 | 2001-12-27 | Double-sided double optical fiber head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273160 CN2532496Y (en) | 2001-12-27 | 2001-12-27 | Double-sided double optical fiber head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2532496Y true CN2532496Y (en) | 2003-01-22 |
Family
ID=33678177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01273160 Expired - Lifetime CN2532496Y (en) | 2001-12-27 | 2001-12-27 | Double-sided double optical fiber head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2532496Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006042449A1 (en) * | 2004-09-09 | 2006-04-27 | Lightel Technologies Inc. | Assembling type iso-flim double optical fiber head and its producing method |
| CN101859034A (en) * | 2010-05-31 | 2010-10-13 | 哈尔滨工程大学 | Dual fiber optic switch integrated in one fiber |
| CN102411174A (en) * | 2011-12-28 | 2012-04-11 | 武汉电信器件有限公司 | Optical fiber ferrule |
| CN105842791A (en) * | 2015-01-13 | 2016-08-10 | 深圳市锦特尔技术有限公司 | Adjustable double-fiber collimator and application thereof |
| CN109106465A (en) * | 2018-09-25 | 2019-01-01 | 中国科学院深圳先进技术研究院 | A kind of double optical fiber structures and preparation method thereof |
-
2001
- 2001-12-27 CN CN 01273160 patent/CN2532496Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006042449A1 (en) * | 2004-09-09 | 2006-04-27 | Lightel Technologies Inc. | Assembling type iso-flim double optical fiber head and its producing method |
| CN101859034A (en) * | 2010-05-31 | 2010-10-13 | 哈尔滨工程大学 | Dual fiber optic switch integrated in one fiber |
| CN101859034B (en) * | 2010-05-31 | 2012-08-22 | 哈尔滨工程大学 | Double-core optical fiber switch integrated in one optical fiber |
| CN102411174A (en) * | 2011-12-28 | 2012-04-11 | 武汉电信器件有限公司 | Optical fiber ferrule |
| CN105842791A (en) * | 2015-01-13 | 2016-08-10 | 深圳市锦特尔技术有限公司 | Adjustable double-fiber collimator and application thereof |
| CN109106465A (en) * | 2018-09-25 | 2019-01-01 | 中国科学院深圳先进技术研究院 | A kind of double optical fiber structures and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111227 Granted publication date: 20030122 |