CN2593217Y - Tunable optical fiber FP filter - Google Patents
Tunable optical fiber FP filter Download PDFInfo
- Publication number
- CN2593217Y CN2593217Y CN 02291998 CN02291998U CN2593217Y CN 2593217 Y CN2593217 Y CN 2593217Y CN 02291998 CN02291998 CN 02291998 CN 02291998 U CN02291998 U CN 02291998U CN 2593217 Y CN2593217 Y CN 2593217Y
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- CN
- China
- Prior art keywords
- optical fiber
- screwed
- adjustment seat
- contact pins
- pins
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Mechanical Coupling Of Light Guides (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model relates to a tunable optical fiber FP filter. In the utility model, a piezoelectric ceramic with a through hole is rigidly stuck on a bracket; a supporting block is rigidly stuck on the piezoelectric ceramic; a pressing ring fixes a pin tailstock by the supporting block and an adjusting seat further for fixing two pins. Because optical fiber pins and a sleeve pipe have high coaxial precision and roundness precision and the end surfaces and inner holes of the optical fiber pins are processed into high verticality degree, the end surfaces of optical fiber cores coated with reflecting films on the end surfaces of the optical fiber pins are caused to be aligned, the adjusting seat is adjusted, and optical fiber is used for inputting broadband signal light and monitoring the output optical spectrum for judging spectral characteristics needed by filtering. When a needed spectral characteristic appears, the bracket and the adjusting seat are tightly stuck and fixed further being sealed into a box and completing the fabrication of an element, two electrodes of the piezoelectric ceramic are used for energizing and controlling, distance between the fiber cores of the end surfaces of the two pins can be tuned, and the tuner of output wavelength can be realized. The utility model has the advantages of no need of auxiliary adjusting device, easy assembly and low cost.
Description
(1) technical field
The utility model relates to the optical device in a kind of optical-fibre communications and the light sensing, particularly a kind of tunable fiber FP wave filter that is made of optical fiber.
(2) background technology
Tunable fiber FP wave filter has been widely used in optical-fibre communications and the light sensing.Its design feature is: directly be coated with reflectance coating at fiber end face, form level crossing, aim at, and then it is tuning to use piezoelectric ceramics that two level crossing spacings are carried out, thereby realize the tuning of respective wavelength.The multiple structure of such tunable fiber FP wave filter occurs, but these structures all need auxiliary adjusting device to make, and aims at and the bigger difficulty of fixing existence.
(3) utility model content
The purpose of this utility model is: in producing by utilization existing fiber connector, the mature high precision of technology unit, parts (example: the optical fiber contact pins of optical fiber contact pins or magnetic tape trailer seat and the split coupling that matches thereof etc.), design a kind of high coaxial precision and need not auxiliary adjusting device, be easy to assemble, and lower-cost tunable fiber FP wave filter.
The purpose of this utility model is achieved in that
A kind of tunable fiber FP wave filter is by two optical fiber, first optical fiber, second optical fiber; Compositions such as two optical fiber contact pins that have a tailstock and split coupling or circular sleeve wherein also comprise:
A screwed back-up block;
First screwed pressure ring, described first screwed pressure ring is fixed in described back-up block with a described optical fiber contact pins that has tailstock by screw thread;
A screwed adjustment seat;
Second screwed pressure ring, described second screwed pressure ring is fixed in described adjustment seat with described another optical fiber contact pins that has tailstock by screw thread;
A screwed support is fixed in described adjustment seat on the described support by screw thread;
A piezoelectric ceramics, an end face rigidity of described piezoelectric ceramics is bonding or be fixedly welded on the described support, and other end and described back-up block rigidity are bonding or welding is fixing;
Fiber end face in described two ferrule end-faces is coated with reflectance coating.
The purpose of this utility model is achieved in that
A kind of tunable fiber FP wave filter is by two optical fiber, first optical fiber, second optical fiber; Compositions such as two optical fiber contact pins that have a tailstock and split coupling or circular sleeve wherein also comprise:
A back-up block;
A screwed adjustment seat;
A screwed pressure ring, described pressure ring is fixed in described adjustment seat with a described optical fiber contact pins that has tailstock by screw thread;
A screwed support is fixed in described adjustment seat on the described support by screw thread.
A piezoelectric ceramics, end face rigidity of described electroceramics is bonding or be fixedly welded on the described support, and other end and described back-up block rigidity are bonding or welding is fixing;
Fiber end face in described two ferrule end-faces is coated with reflectance coating.
Effect of the present utility model:
Use tunable fiber FP wave filter of the present utility model, need not auxiliary adjusting device, be easy to assembling, and the manufacturing cost of this device is lower.
For further specifying above-mentioned purpose of the present utility model, design feature and effect, the utility model is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the optical fiber contact pins figure of market magnetic tape trailer seat on sale, and wherein, optical fiber contact pins is press-fitted by its tailstock or the gluing parts that fixedly become;
Fig. 2 (a) is the synoptic diagram of the tube wall upper shed of split coupling;
Fig. 2 (b) is the radial cross-section of split coupling;
Fig. 3 is a typical embodiment device figure of the present utility model.
(5) embodiment
Accompanying drawing below in conjunction with the utility model embodiment is elaborated to the utility model.
Referring to Fig. 1,2 and Fig. 3, piezoelectric ceramics 6 rigidity of band through hole are adhered on the support 5, back-up block 7 rigidity stick on the piezoelectric ceramics 6, and 6 one end face rigidity of electroceramics are bonding or be fixedly welded on the support 5, and other end and a back-up block 7 rigidity are bonding or welding is fixing.
Contact pin 11 is aimed at (having an opening on the tube wall of this split coupling 12) with 13 by split coupling 12.
First screwed pressure ring 8, the optical fiber contact pins 11 that will have tailstock 10 is fixed in 7, the second screwed pressure rings 3 of described back-up block by screw thread, and the optical fiber contact pins 13 that will have tailstock 2 is fixed in adjustment seat 4 by screw thread.
Because optical fiber contact pins 11,13 and split coupling 12 have high coaxial and circularity precision and optical fiber contact pins 11,13 end faces and its endoporus and can be processed into high verticality, therefore, the fiber core end face that is coated with reflectance coating on optical fiber contact pins 11,13 end faces promptly is aligned.Further by threaded adjusting adjustment seat 4, simultaneously by optical fiber 1 input broadband signal light, by optical fiber 9 its output spectrums of monitoring, to judge the required spectral characteristic of filtering.When required spectral characteristic occurs, this moment by the top hole on the support 5 and in addition two of sides and following one (not drawing among the figure) totally four ortho-symmetric holes inject scolding tin or tackifier with described adjustment seat 4 glue firm or weld etc. cement fixing.By two electrifying electrodes (not drawing among the figure) of piezoelectric ceramics 6 and control, the distance between promptly tunable two contact pins, 11,13 end face fibre cores realizes the tuning of output wavelength.
In Fig. 3, optical fiber contact pins tailstock 10 also can be directly bonding or be welded on the back-up block 7, and is need not first screwed pressure ring 8 fixing.It is one laminar with weight reduction (not threaded) that back-up block 7 also can be reduced to, and improves piezoelectric ceramics 6 frequency of operation.
In the present embodiment, two optical fiber 1,9 difference glue are in two optical fiber contact pins, 11,13 endoporus and its optical fiber contact pins tailstock 2,10; The material of described optical fiber contact pins 11,13 and described split coupling 12 is pottery or metal or glass; Split coupling 12 is placed on described two optical fiber contact pins 11,13, and split coupling 12 parts of the second shown optical fiber contact pins 13 shown in occupying are less than 1/2nd; Described optical fiber contact pins 11,13 at first by its described optical fiber contact pins tailstock 2,10 by being press-fitted or the gluing parts that are fixed into, these parts are fixed on described adjustment seat 4 (using first optical fiber contact pins 1) and the described back-up block 7 (using second optical fiber contact pins 9) by screwing pressure ring again.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claims variation, the modification of the above embodiment.
Claims (6)
1, a kind of tunable fiber FP wave filter is by two optical fiber, first optical fiber, second optical fiber; Compositions such as two optical fiber contact pins that have a tailstock and split coupling or circular sleeve is characterized in that described optical fiber FP wave filter also comprises:
A screwed back-up block;
First screwed pressure ring, described first screwed pressure ring is fixed in described back-up block with a described optical fiber contact pins that has tailstock by screw thread;
A screwed adjustment seat;
Second screwed pressure ring, described second screwed pressure ring is fixed in described adjustment seat with described another optical fiber contact pins that has tailstock by screw thread;
A screwed support is fixed in described adjustment seat on the described support by screw thread;
A piezoelectric ceramics, an end face rigidity of described piezoelectric ceramics is bonding or be fixedly welded on the described support, and other end and described back-up block rigidity are bonding or welding is fixing;
Fiber end face in described two ferrule end-faces is coated with reflectance coating.
2, as right 1 described tunable fiber FP wave filter, it is characterized in that the center of described piezoelectric ceramics has through hole.
3, as right 1 described tunable fiber FP wave filter, it is characterized in that described support side is provided with four quadratures symmetry through holes, make described support and described adjustment seat glue firm or weld.
4, a kind of tunable fiber FP wave filter is by two optical fiber, first optical fiber, second optical fiber; Compositions such as two optical fiber contact pins that have a tailstock and split coupling or circular sleeve is characterized in that described optical fiber FP wave filter also comprises:
A back-up block;
A screwed adjustment seat;
A screwed pressure ring, described pressure ring is fixed in described adjustment seat with a described optical fiber contact pins that has tailstock by screw thread;
A screwed support is fixed in described adjustment seat on the described support by screw thread.
A piezoelectric ceramics, end face rigidity of described electroceramics is bonding or be fixedly welded on the described support, and other end and described back-up block rigidity are bonding or welding is fixing;
Fiber end face in described two ferrule end-faces is coated with reflectance coating.
5, as right 4 described tunable fiber FP wave filters, it is characterized in that the center of described piezoelectric ceramics has through hole.
6, as right 4 described tunable fiber FP wave filters, it is characterized in that described support side is provided with four quadratures symmetry through holes, make described support and described adjustment seat glue firm or weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02291998 CN2593217Y (en) | 2002-12-26 | 2002-12-26 | Tunable optical fiber FP filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02291998 CN2593217Y (en) | 2002-12-26 | 2002-12-26 | Tunable optical fiber FP filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2593217Y true CN2593217Y (en) | 2003-12-17 |
Family
ID=33750558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02291998 Expired - Lifetime CN2593217Y (en) | 2002-12-26 | 2002-12-26 | Tunable optical fiber FP filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2593217Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100470282C (en) * | 2007-11-21 | 2009-03-18 | 北京理工大学 | Turnning optical fibre method Fabry-perot filter |
| CN101320110B (en) * | 2008-06-07 | 2011-04-06 | 厦门大学 | Tunable phase shift optical fiber Bragg optical grating |
| CN103457144A (en) * | 2013-09-10 | 2013-12-18 | 中国科学院国家授时中心 | Adjustable high-stable F-P integrated endoscope device |
| CN104647271A (en) * | 2014-12-31 | 2015-05-27 | 中国科学院深圳先进技术研究院 | Microchannel wire threading device and microchannel wire threading method |
| CN109491018A (en) * | 2018-12-25 | 2019-03-19 | 珠海光库科技股份有限公司 | Fast tunable filter |
| CN109557617A (en) * | 2018-12-25 | 2019-04-02 | 珠海光库科技股份有限公司 | Tunable filter |
-
2002
- 2002-12-26 CN CN 02291998 patent/CN2593217Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100470282C (en) * | 2007-11-21 | 2009-03-18 | 北京理工大学 | Turnning optical fibre method Fabry-perot filter |
| CN101320110B (en) * | 2008-06-07 | 2011-04-06 | 厦门大学 | Tunable phase shift optical fiber Bragg optical grating |
| CN103457144A (en) * | 2013-09-10 | 2013-12-18 | 中国科学院国家授时中心 | Adjustable high-stable F-P integrated endoscope device |
| CN104647271A (en) * | 2014-12-31 | 2015-05-27 | 中国科学院深圳先进技术研究院 | Microchannel wire threading device and microchannel wire threading method |
| CN109491018A (en) * | 2018-12-25 | 2019-03-19 | 珠海光库科技股份有限公司 | Fast tunable filter |
| CN109557617A (en) * | 2018-12-25 | 2019-04-02 | 珠海光库科技股份有限公司 | Tunable filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Qian Hongwei Designer after: Wei Chunlong Designer after: Yin Yunguo Designer after: Zhou Xunhong Designer before: Wei Chunlong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: WEI CHUNLONG TO: QIAN HONGWEI WEI CHUNLONG YIN YUNGUO ZHOU XUNHONG |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121226 Granted publication date: 20031217 |