CN202720386U - Fiber delay line with adjustable light - Google Patents
Fiber delay line with adjustable light Download PDFInfo
- Publication number
- CN202720386U CN202720386U CN 201220325469 CN201220325469U CN202720386U CN 202720386 U CN202720386 U CN 202720386U CN 201220325469 CN201220325469 CN 201220325469 CN 201220325469 U CN201220325469 U CN 201220325469U CN 202720386 U CN202720386 U CN 202720386U
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- shaped groove
- collimating apparatus
- prism
- optical fibre
- slide block
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Abstract
The utility model discloses a fiber delay line with adjustable light, which comprises a U-shaped groove, an output fiber collimator, an input fiber collimator, a cube-corner prism and a sliding block, wherein the sliding block is slidably installed at the bottom part of the U-shaped groove, the cube-corner prism is installed on the side surface of the sliding block, and the output fiber collimator and the input fiber collimator are installed at edge positions of the U-shaped groove opposite to the cube-corner prism. Light is shot out from the output fiber collimator, reflected by the cube-corner prism, and shot into the input fiber collimator. The fiber delay line with adjustable light can overcome defects existing in the prior art that light beams mutually interfere, component losses within the entire light path length are the same, and the like in light path collimation so as to realize that mutual interferences among the light beams are not produced in light path collimation and the range of application is expanded.
Description
Technical field
The utility model relates to the web member in the Optical Fiber Transmission, particularly, relates to a kind of fibre delay line.
Background technology
Nowadays, since the optical fiber technology invention, research and the application of various optical fibre devices emerge in an endless stream.As the fibre delay line (FDL) of novel signal processing apparatus from initial simple one section optical fiber, develop into the individual devices that present stage has the Various Complex structure, become one of Primary Component in the optical information processing technology, have the multi-signal processing capacity, the coding of realizing signal such as the collection that participates in realizing measuring-signal in Fibre Optical Sensor and optical measuring system with transmission, in optical fiber telecommunications system and buffer memory, the precise phase distribution of realization microwave signal and control in the optically controlled phased array antennas system, radar echo signal relevant removed and made an uproar etc.General, optical delay line is divided into: cable delay line, quartzy delay, optical fiber fixed delay line etc.Use function to be divided into according to lag line: fixed delay line and variable delay line.Adjustable delay has a minute manual adjustable and electronic variable delay line.And when having beam path alignment in the prior art light beam mutually interfere and whole light path in the defectives such as device loss is consistent.
The utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of smooth adjustable optic fibre lag line, can not produce mutual interference and improve the advantage of usable range to realize when realizing beam path alignment light beam.
For achieving the above object, the technical solution adopted in the utility model is: a kind of smooth adjustable optic fibre lag line, comprise: U-shaped groove, output optical fibre collimating apparatus, input optical fibre collimating apparatus, prism of corner cube and slide block, described slide block is slidingly mounted on U-shaped trench bottom, prism of corner cube is equipped with in the slide block side, the U-shaped groove lateral location place corresponding with described prism of corner cube is equipped with output optical fibre collimating apparatus and input optical fibre collimating apparatus, and light penetrates from described output optical fibre collimating apparatus and injects the input optical fibre collimating apparatus by prism of corner cube.
Further, also be provided with two through holes on the described slide block, in described two through holes screw mandrel and linear bearing be housed respectively.
Further, described screw mandrel runs through U-shaped groove, and passes U-shaped groove one side and shell, links to each other with ball bearing outside described shell.
Further, in the described linear bearing sliding axle is housed, described sliding axle runs through U-shaped groove.
Further, the center of circle of two through holes is point-blank on described prism of corner cube and the slide block.
A kind of smooth adjustable optic fibre lag line of the utility model, owing to comprise output optical fibre collimating apparatus and the input optical fibre collimating apparatus of slide block and parallel installation, can reach by adjusting slider and regulate different time delay, and output optical fibre collimating apparatus and input optical fibre collimating apparatus that equality is installed can make light mutually not interfere; Thereby in the time of can overcoming in the prior art beam path alignment light beam mutually interfere and whole light path in the defectives such as device loss is consistent, light beam can not produce mutual interference and enlarge the advantage of usable range when realizing beam path alignment.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is according to a kind of smooth adjustable optic fibre lag line synoptic diagram of the utility model,
Fig. 2 is according to a kind of smooth adjustable optic fibre lag line slide block of the utility model place scheme of installation,
Fig. 3 is by prism of corner cube, output optical fibre collimating apparatus and input optical fibre collimating apparatus synoptic diagram according to a kind of smooth adjustable optic fibre lag line light of the utility model.
By reference to the accompanying drawings, Reference numeral is as follows among the utility model embodiment:
1-U type groove; The 2-slide block; The 3-prism of corner cube; The 4-linear bearing; The 5-screw mandrel; The 6-sliding axle; 7-output optical fibre collimating apparatus; 8-input optical fibre collimating apparatus; The 9-ball bearing; The 10-external package pipe; The 11-shell; The 12-lid.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
According to the utility model embodiment, provide a kind of smooth adjustable optic fibre lag line.As Figure 1-3, present embodiment comprises:
A kind of smooth adjustable optic fibre lag line, comprise: U-shaped groove 1, output optical fibre collimating apparatus 7, input optical fibre collimating apparatus 8, prism of corner cube 3 and slide block 2, slide block 2 is slidingly mounted on U-shaped groove 1 bottom, prism of corner cube 3 is equipped with in slide block 2 sides, the U-shaped groove 1 lateral location place corresponding with prism of corner cube 3 is equipped with output optical fibre collimating apparatus 7 and input optical fibre collimating apparatus 8, and light penetrates from output optical fibre collimating apparatus 8 and injects input optical fibre collimating apparatus 7 by prism of corner cube 3.Also be provided with two through holes on the slide block 2, screw mandrel 5 and linear bearing 4 are housed respectively in two through holes.Screw mandrel 5 runs through U-shaped groove 1, and passes U-shaped groove 1 one sides and shell 11, links to each other with ball bearing 8 outside shell 11.Sliding axle 6 is housed in the linear bearing 4, and sliding axle 6 runs through U-shaped groove 1.The center of circle of two through holes point-blank on prism of corner cube 3 and the slide block 2.
A kind of smooth adjustable optic fibre lag line is that a kind of delay precision is the lag line of insertion loss consistance in 0.05ps, insertion loss＜0.8d B, the light path scope＜0.4d B, by prism of corner cube 3 and output optical fibre collimating apparatus 7 and input optical fibre collimating apparatus 8.Because what this light adjustable optic fibre lag line adopted is the total reflection of pyramid light path, so the device performance parameter is all than good.
This light adjustable optic fibre lag line has the adjustable duty of 0 ~ 5000ps, and is namely adjustable continuously.
But at first at continuous timing.The light signal that light wave is inputted from the port of input optical fibre collimating apparatus 8 through forming 180 degree reflection angle behind the prism of corner cube 3, is reflected to 7 outputs of output optical fibre collimating apparatus, and this light beam is received and forms a free space light path fully.
In continuous adjustable state, make driving force rotary screw promotion slide block by manual or stepper motor and change the adjustable apart from realization 0 ~ 5000ps of free space light path.
Claims (5)
1. light adjustable optic fibre lag line, comprise: U-shaped groove, output optical fibre collimating apparatus, input optical fibre collimating apparatus, prism of corner cube and slide block, it is characterized in that, described slide block is slidingly mounted on U-shaped trench bottom, prism of corner cube is equipped with in the slide block side, the U-shaped groove lateral location place corresponding with described prism of corner cube is equipped with output optical fibre collimating apparatus and input optical fibre collimating apparatus, and light penetrates from described output optical fibre collimating apparatus and injects the input optical fibre collimating apparatus by prism of corner cube.
2. a kind of smooth adjustable optic fibre lag line according to claim 1 is characterized in that, also is provided with two through holes on the described slide block, in described two through holes screw mandrel and linear bearing is housed respectively.
3. a kind of smooth adjustable optic fibre lag line according to claim 2 is characterized in that described screw mandrel runs through U-shaped groove, and passes U-shaped groove one side and shell, links to each other with ball bearing outside described shell.
4. a kind of smooth adjustable optic fibre lag line according to claim 2 is characterized in that in the described linear bearing sliding axle is housed, described sliding axle runs through U-shaped groove.
5. according to claim 1,2,3 or 4 described a kind of smooth adjustable optic fibre lag lines, it is characterized in that the center of circle of two through holes is point-blank on described prism of corner cube and the slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220325469 CN202720386U (en) | 2012-07-06 | 2012-07-06 | Fiber delay line with adjustable light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220325469 CN202720386U (en) | 2012-07-06 | 2012-07-06 | Fiber delay line with adjustable light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202720386U true CN202720386U (en) | 2013-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220325469 Expired - Fee Related CN202720386U (en) | 2012-07-06 | 2012-07-06 | Fiber delay line with adjustable light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202720386U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293604A (en) * | 2013-06-18 | 2013-09-11 | 中国工程物理研究院流体物理研究所 | Pyramid-prism-based precise FDL (fiber delay line) and method for precise delay control |
| CN104656196A (en) * | 2014-05-20 | 2015-05-27 | 西安邮电大学 | Optical fiber delay line housing |
| CN104656195A (en) * | 2014-05-20 | 2015-05-27 | 西安邮电大学 | Optical fiber delay line receiving module |
| CN105891958A (en) * | 2016-06-15 | 2016-08-24 | 中国工程物理研究院流体物理研究所 | Large-stroke high-scanning frequency optical fiber delay line |
| CN107346050A (en) * | 2017-07-31 | 2017-11-14 | 美国通用光电公司 | A kind of compact optical delayer |
| CN107544114A (en) * | 2017-10-26 | 2018-01-05 | 四川梓冠光电科技有限公司 | It is a kind of to adjust the high fiber delay line of stability |
| CN107561644A (en) * | 2017-10-26 | 2018-01-09 | 四川梓冠光电科技有限公司 | A kind of high-precision optical fiber delayer |
| CN113900188A (en) * | 2021-10-15 | 2022-01-07 | 中国电子科技集团公司第三十四研究所 | All-optical fiber delay device |
-
2012
- 2012-07-06 CN CN 201220325469 patent/CN202720386U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293604A (en) * | 2013-06-18 | 2013-09-11 | 中国工程物理研究院流体物理研究所 | Pyramid-prism-based precise FDL (fiber delay line) and method for precise delay control |
| CN103293604B (en) * | 2013-06-18 | 2015-11-18 | 中国工程物理研究院流体物理研究所 | Based on the accurate fibre delay line of prism of corner cube and the method for accurate Time delay control |
| CN104656196A (en) * | 2014-05-20 | 2015-05-27 | 西安邮电大学 | Optical fiber delay line housing |
| CN104656195A (en) * | 2014-05-20 | 2015-05-27 | 西安邮电大学 | Optical fiber delay line receiving module |
| CN104656195B (en) * | 2014-05-20 | 2018-12-25 | 西安邮电大学 | A kind of fibre delay line receiving module |
| CN104656196B (en) * | 2014-05-20 | 2019-02-15 | 西安邮电大学 | A kind of fibre delay line shell |
| CN105891958A (en) * | 2016-06-15 | 2016-08-24 | 中国工程物理研究院流体物理研究所 | Large-stroke high-scanning frequency optical fiber delay line |
| CN107346050A (en) * | 2017-07-31 | 2017-11-14 | 美国通用光电公司 | A kind of compact optical delayer |
| CN107544114A (en) * | 2017-10-26 | 2018-01-05 | 四川梓冠光电科技有限公司 | It is a kind of to adjust the high fiber delay line of stability |
| CN107561644A (en) * | 2017-10-26 | 2018-01-09 | 四川梓冠光电科技有限公司 | A kind of high-precision optical fiber delayer |
| CN107544114B (en) * | 2017-10-26 | 2019-09-20 | 四川梓冠光电科技有限公司 | It is a kind of to adjust the high fiber delay line of stability |
| CN113900188A (en) * | 2021-10-15 | 2022-01-07 | 中国电子科技集团公司第三十四研究所 | All-optical fiber delay device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20140706 |
|
| EXPY | Termination of patent right or utility model |