CN2807288Y - Micro optics optical fibre ring-shaped device - Google Patents
Micro optics optical fibre ring-shaped device Download PDFInfo
- Publication number
- CN2807288Y CN2807288Y CN 200520016045 CN200520016045U CN2807288Y CN 2807288 Y CN2807288 Y CN 2807288Y CN 200520016045 CN200520016045 CN 200520016045 CN 200520016045 U CN200520016045 U CN 200520016045U CN 2807288 Y CN2807288 Y CN 2807288Y
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- collimating apparatus
- optical fiber
- collimator
- polarization
- micro
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Abstract
The utility model discloses a micro optics optical fiber annular device, which is formed by utilizing the principle of micro optics. A birefringence crystal and a 45 DEG Faraday rotator are arranged on the middle part inside a capillary, one end of the capillary is provided with a polarization-maintaining collimator, one end of the polarization-maintaining collimator is gluing connection with the 45 DEG Faraday rotator, and the other end of the polarization-maintaining collimator is provided with polarization-maintaining optical fibers; the other end of the capillary is provided with a first collimator and a second collimator which are parallelly ranged, one end of the first collimator and the second collimator is respectively in gluing connection with one end of the birefringence crystal, the other end of the first collimator is in gluing connection with a first optical fiber and the other end of the second collimator is in gluing connection with a second optical fiber. The utility model has the advantages of simple structure, compact structure and stable temperature performance, and the utility model can work within a temperature range of-40 DEG C to 85 DEG C.
Description
Technical field
The utility model relates to a kind of micro-optic optical fiber circulator of inclined to one side function that had partially, protected.
Background technology
The micro-optic optical fiber circulator is a kind of beam splitter, and the light after the circulator effect can directly enter optical fiber receive module.
Traditional circulator volume is big, cost is high and because its tail optical fiber is a single-mode fiber, can not keep polarization mode in the single-mode fiber.If circulator device thereafter is some devices relevant with polarization such as modulator, thus because the uncertain optical system instability that makes of input polarisation of light pattern.For making light path system stable, must between some devices relevant such as circulator and modulator, connect a polarizer with polarization, increase thereby make light path system insert loss.
Summary of the invention
The purpose of this utility model provides a kind of micro-optic optical fiber circulator inclined to one side, the inclined to one side function of guarantor that had, and this circulator volume is little, manufacture craft is simple, is easy to mass production.
A kind of micro-optic optical fiber circulator of the present utility model, by first optical fiber, second optical fiber, first collimating apparatus, second collimating apparatus, birefringece crystal, 45 ° of Faraday rotators, protecting inclined to one side collimating apparatus and polarization maintaining optical fibre constitutes, birefringece crystal and 45 ° of Faraday rotators are placed in the middle part in the kapillary, an end capillaceous is laid and is protected inclined to one side collimating apparatus, protect an end and 45 ° of gluing connections of Faraday rotator of inclined to one side collimating apparatus, the other end of protecting inclined to one side collimating apparatus is adhesive with polarization maintaining optical fibre, the other end capillaceous is laid first collimating apparatus and second collimating apparatus of parallel discharging, first collimating apparatus and second collimating apparatus, one end and gluing connection of birefringece crystal one end, the other end of first collimating apparatus is adhesive with first optical fiber, and the other end of second collimating apparatus is adhesive with second optical fiber.
Described micro-optic optical fiber circulator, first optical fiber that is adhesive on first collimating apparatus can be single-mode fiber or polarization maintaining optical fibre with second optical fiber that is adhesive on second collimating apparatus.
Described micro-optic optical fiber circulator, birefringece crystal and parallel first collimating apparatus and the second collimating apparatus spacing, the 2～3mm that discharges.
Described micro-optic optical fiber circulator, its operating ambient temperature are-40 ℃～+ 85 ℃.
Described micro-optic optical fiber circulator can be used in optical fibre gyro or optical fiber current mutual inductor or the optical-fibre communications.
The advantage of the utility model micro-optic optical fiber circulator: simple in structure, compact; Temperature performance is stable, can work in-40 ℃～+ 85 ℃ temperature ranges; This micro-optic optical fiber circulator can be produced in batches.
Description of drawings
Fig. 1 is the structure cut-open view of the utility model micro-optic optical fiber circulator.
Fig. 2 is that the light path of the utility model micro-optic optical fiber circulator is moved towards synoptic diagram.
Among the figure: 1. 6.45 ° of Faraday rotators of first optical fiber 2. first collimating apparatuss, 3. second optical fiber 4. second collimating apparatuss, 5. birefringece crystals 7. are protected inclined to one side collimating apparatus 8. polarization maintaining optical fibres 9. housings 10. kapillaries
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also shown in Figure 1, the utility model is a kind of micro-optic optical fiber circulator, by first optical fiber 1, second optical fiber 3, first collimating apparatus 2, second collimating apparatus 4, birefringece crystal 5,45 ° of Faraday rotators 6, protect inclined to one side collimating apparatus 7 and polarization maintaining optical fibre 8 formations, birefringece crystal 5 and 45 ° of Faraday rotators 6 are placed in the middle part in the kapillary 10, one end of kapillary 10 is laid and is protected inclined to one side collimating apparatus 7, protect an end and 6 gluing connections of 45 ° of Faraday rotators of inclined to one side collimating apparatus 7, the other end of protecting inclined to one side collimating apparatus 7 is adhesive with polarization maintaining optical fibre 8, the other end of kapillary 10 is laid first collimating apparatus 2 and second collimating apparatus 4 of parallel discharging, first collimating apparatus 2 and second collimating apparatus, 4 one ends and gluing connection of birefringece crystal 5 one ends, and spacing 2mm, the other end that the other end of first collimating apparatus 2 is adhesive with first optical fiber, 1, the second collimating apparatus 4 is adhesive with second optical fiber 3.Described first optical fiber 1 and second optical fiber 3 can be single-mode fiber or polarization maintaining optical fibre.
Micro-optic optical fiber circulator of the present utility model, being adhesive in first optical fiber 1 on first collimating apparatus 2 and second optical fiber 3 that is adhesive on second collimating apparatus 4 can be single-mode fiber or polarization maintaining optical fibre.
See also shown in Figure 2, the input end natural light becomes space parallel light behind first collimating apparatus, 2 collimations, space parallel light forms linearly polarized light behind birefringece crystal 5,45 ° of rotations take place through 45 ° of Faraday rotators, 6 rear polarizer faces in linearly polarized light, and rotation back linearly polarized light converges to output terminal polarization maintaining optical fibre 8 after protecting inclined to one side collimating apparatus 7; 45 ° of rotations take place in the linearly polarized light that returns from polarization maintaining optical fibre 8 linear polarization polarization surface after protecting 7,45 ° of Faraday rotators 6 of inclined to one side collimating apparatus, and rotation back linearly polarized light converges in second optical fiber 3 after being collimated by second collimating apparatus 4 through birefringece crystal 5 after.The o anaclasis behind birefringece crystal 5 of space parallel light goes out crystal, and e light is refracted at B o'clock by the A point and through 45 ° of Faraday rotators, 6 rear polarizer faces 45 ° of rotations takes place, and converges to output terminal polarization maintaining optical fibre 8 by protecting inclined to one side collimating apparatus 7; Continue 45 ° of rotations through the light that optical path component is returned by linear polarization polarization surface after protecting 7,45 ° of Faraday rotators 6 of inclined to one side collimating apparatus, e light originally changes o light into, penetrates along BC.
Micro-optic optical fiber circulator volume of the present utility model is little, and its manufacture craft is simple, is easy to mass production; Can be used in optical fibre gyro or optical fiber current mutual inductor or the optical-fibre communications, its temperature performance is stable, can work preferred temperature scope-20 ℃～+ 50 ℃ in-40 ℃～+ 85 ℃ temperature ranges.
Claims (3)
1, a kind of micro-optic optical fiber circulator, it is characterized in that: by first optical fiber (1), second optical fiber (3), first collimating apparatus (2), second collimating apparatus (4), birefringece crystal (5), 45 ° of Faraday rotators (6), protecting inclined to one side collimating apparatus (7) and polarization maintaining optical fibre (8) constitutes, birefringece crystal (5) and 45 ° of Faraday rotators (6) are placed in the middle part in the kapillary (10), one end of kapillary (10) is laid and is protected inclined to one side collimating apparatus (7), protect an end and gluing connection of 45 ° of Faraday rotators (6) of inclined to one side collimating apparatus (7), the other end of protecting inclined to one side collimating apparatus (7) is adhesive with polarization maintaining optical fibre (8), the other end of kapillary (10) is laid first collimating apparatus (2) and second collimating apparatus (4) of parallel discharging, end is gluing is connected for first collimating apparatus (2) and second collimating apparatus (4) one ends and birefringece crystal (5), the other end of first collimating apparatus (2) is adhesive with first optical fiber (1), and the other end of second collimating apparatus (4) is adhesive with second optical fiber (3).
2, according to the described micro-optic optical fiber circulator of claim 1, it is characterized in that: be adhesive in first optical fiber (1) on first collimating apparatus (2) and second optical fiber (3) that is adhesive on second collimating apparatus (4) can be single-mode fiber or polarization maintaining optical fibre.
3, according to the described micro-optic optical fiber circulator of claim 1, it is characterized in that: birefringece crystal (5) and parallel first collimating apparatus (2) and second collimating apparatus (4) spacing 2～3mm that discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520016045 CN2807288Y (en) | 2005-04-15 | 2005-04-15 | Micro optics optical fibre ring-shaped device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520016045 CN2807288Y (en) | 2005-04-15 | 2005-04-15 | Micro optics optical fibre ring-shaped device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807288Y true CN2807288Y (en) | 2006-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520016045 Expired - Fee Related CN2807288Y (en) | 2005-04-15 | 2005-04-15 | Micro optics optical fibre ring-shaped device |
Country Status (1)
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| CN (1) | CN2807288Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393198A (en) * | 2011-10-20 | 2012-03-28 | 武汉虹拓新技术有限责任公司 | Optical gyroscope |
| CN102608704A (en) * | 2012-04-11 | 2012-07-25 | 北京交通大学 | Fiber circulator based on multi-core fiber |
| CN103837934A (en) * | 2012-11-22 | 2014-06-04 | 福州高意通讯有限公司 | Optical-fiber circulator |
| CN104035159A (en) * | 2014-06-25 | 2014-09-10 | 深圳市越海光通信科技有限公司 | Compact-type polarization-maintaining three-port optical circulator |
| CN105242352A (en) * | 2015-10-12 | 2016-01-13 | 深圳朗光科技有限公司 | Three-port optical circulator |
| CN106198475A (en) * | 2016-07-27 | 2016-12-07 | 中科院合肥技术创新工程院 | Heavy metal detection system based on hollow-core fiber sensor |
| CN108319041A (en) * | 2018-02-23 | 2018-07-24 | 珠海光库科技股份有限公司 | Optical circulator and its application method |
| CN108955857A (en) * | 2018-06-29 | 2018-12-07 | 余姚舜宇智能光学技术有限公司 | A kind of difference interference light channel structure and laser vibration measurer based on optical fiber |
| CN108363144B (en) * | 2018-05-09 | 2020-12-29 | 上海飞博激光科技有限公司 | High-power optical fiber circulator based on curved surface optical fiber end cap |
-
2005
- 2005-04-15 CN CN 200520016045 patent/CN2807288Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393198A (en) * | 2011-10-20 | 2012-03-28 | 武汉虹拓新技术有限责任公司 | Optical gyroscope |
| CN102393198B (en) * | 2011-10-20 | 2015-04-08 | 武汉虹拓新技术有限责任公司 | Optical gyroscope |
| CN102608704A (en) * | 2012-04-11 | 2012-07-25 | 北京交通大学 | Fiber circulator based on multi-core fiber |
| CN103837934B (en) * | 2012-11-22 | 2016-01-20 | 福州高意通讯有限公司 | A kind of optical fiber circulator |
| CN103837934A (en) * | 2012-11-22 | 2014-06-04 | 福州高意通讯有限公司 | Optical-fiber circulator |
| CN104035159A (en) * | 2014-06-25 | 2014-09-10 | 深圳市越海光通信科技有限公司 | Compact-type polarization-maintaining three-port optical circulator |
| CN105242352A (en) * | 2015-10-12 | 2016-01-13 | 深圳朗光科技有限公司 | Three-port optical circulator |
| CN106198475A (en) * | 2016-07-27 | 2016-12-07 | 中科院合肥技术创新工程院 | Heavy metal detection system based on hollow-core fiber sensor |
| CN106198475B (en) * | 2016-07-27 | 2019-03-05 | 中科院合肥技术创新工程院 | Heavy metal detection system based on hollow-core fiber sensor |
| CN108319041A (en) * | 2018-02-23 | 2018-07-24 | 珠海光库科技股份有限公司 | Optical circulator and its application method |
| CN108363144B (en) * | 2018-05-09 | 2020-12-29 | 上海飞博激光科技有限公司 | High-power optical fiber circulator based on curved surface optical fiber end cap |
| CN108955857A (en) * | 2018-06-29 | 2018-12-07 | 余姚舜宇智能光学技术有限公司 | A kind of difference interference light channel structure and laser vibration measurer based on optical fiber |
| CN108955857B (en) * | 2018-06-29 | 2024-03-26 | 余姚舜宇智能光学技术有限公司 | Heterodyne interference light path structure and laser vibration meter based on optical fiber |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |