CN205482968U - Integrated fiber gyroscope of crystal - Google Patents
Integrated fiber gyroscope of crystal Download PDFInfo
- Publication number
- CN205482968U CN205482968U CN201620254777.5U CN201620254777U CN205482968U CN 205482968 U CN205482968 U CN 205482968U CN 201620254777 U CN201620254777 U CN 201620254777U CN 205482968 U CN205482968 U CN 205482968U
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- China
- Prior art keywords
- optical fiber
- port
- tunable laser
- detector
- tail optical
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Abstract
The utility model provides an integrated fiber gyroscope of crystal, integrated fiber gyroscope of crystal includes tunable laser, polarization beam split five terminal mouthpart spare, optic fibre ring, postpones ring, bi -polar tail optical fiber detector and detection circuitry, tunable laser, optic fibre ring, postpone ring sum bi -polar tail optical fiber detector with polarization beam split five terminal mouthpart spare is connected, detection circuitry with bi -polar tail optical fiber detector is connected. The utility model discloses integrated fiber gyroscope of crystal is through setting up tunable laser, polarization beam split five terminal mouthpart spare, optic fibre ring, postponing ring, bi -polar tail optical fiber detector and detection circuitry to with tunable laser, optic fibre ring, postpone ring sum bi -polar tail optical fiber detector and be connected with polarization beam split five terminal mouthpart spare, can simplify the structure of light path, improvement fiber optic gyroscope's reliability and stability reduce fiber optic gyroscope's volume, greatly reduced fiber optic gyroscope's cost.
Description
Technical field
This utility model relates to inertial sensor manufacturing technology field, particularly relates to a kind of crystal integrated optical fiber top
Spiral shell instrument.
Background technology
Fibre optic gyroscope is with optical fibers coil as sensing element, fibre optic gyroscope and traditional mechanical gyro
Instrument is compared, and advantage is all solid state, does not has rotary part and friction means, and the life-span is long, and dynamic range is big, wink
Shi Qidong, simple in construction, size is little, lightweight.Compared with lasergyro, fibre optic gyroscope does not close
Lock problem, goes out light path without Precision Machining on quartz wedge, and technique is simple, low cost.But existing light
Fiber gyroscope optics is discrete components and parts, the tail optical fiber mutual welding of needs of device, the fusing point of increase,
Bring interference for light path, increase the noise of light path, reduce the reliability of light path, inside existing fiber gyro
Device be special optics, especially integrated optical modulator, structure is complicated, and production difficulty is big,
Cost is the highest, adds manufacture difficulty and the cost of optical fibre gyro.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of crystal integrated optical fiber gyroscope instrument, it is possible to simplify
The structure of light path, improves the reliability of optical fibre gyro.
For solving above-mentioned technical problem, embodiment of the present utility model provides a kind of crystal integrated optical fiber gyroscope instrument,
Described crystal integrated optical fiber gyroscope instrument include tunable laser, polarization spectro five port devices, fiber optic loop,
Ring retard, both-end tail optical fiber detector and testing circuit, described tunable laser, fiber optic loop, ring retard and
Both-end tail optical fiber detector is connected with described polarization spectro five port devices, described testing circuit and described both-end tail
Fine detector connects.
Preferably, described tunable laser is connected with the first port of described polarization spectro five port devices,
The two ends of described fiber optic loop are connected with the second port and the 3rd port of described polarization spectro five port devices, institute
State the two ends of ring retard respectively with the 4th port of polarization spectro five port devices and both-end tail optical fiber detector even
Connecing, described both-end tail optical fiber detector is respectively with the fifth port of polarization spectro five port devices and testing circuit even
Connect.
Preferably, described tunable laser is connected with tunable laser driver.
Preferably, described both-end tail optical fiber detector is photoelectricity both-end tail optical fiber detector.
Preferably, it is provided with beam splitter and splicer in described polarization spectro five port devices.
Having the beneficial effect that of technique scheme of the present utility model:
In such scheme, by arrange tunable laser, polarization spectro five port devices, fiber optic loop,
Ring retard, both-end tail optical fiber detector and testing circuit, and by tunable laser, fiber optic loop, ring retard and
Both-end tail optical fiber detector is connected with polarization spectro five port devices, it is possible to simplify the loaded down with trivial details journey that gyroscope is installed
Degree, improves device integration, it is ensured that the reliability and stability of optical fibre gyro, is substantially reduced optical fibre gyro
Cost.
Accompanying drawing explanation
Fig. 1 is the crystal integrated optical fiber gyroscope instrument structure connection diagram of this utility model embodiment；
Fig. 2 is the crystal integrated optical fiber gyroscope instrument signal pulse schematic diagram of this utility model embodiment.
[main element symbol description]
Tunable laser 1；
Polarization spectro five port devices 2；
Fiber optic loop 3；
Ring retard 4；
Both-end tail optical fiber detector 5；
Testing circuit 6；
Tunable laser driver 7.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, below will knot
Conjunction drawings and the specific embodiments are described in detail.
As it is shown in figure 1, a kind of crystal integrated optical fiber gyroscope instrument that embodiment of the present utility model provides, described
Crystal integrated optical fiber gyroscope instrument include tunable laser 1, polarization spectro five port devices 2, fiber optic loop 3,
Ring retard 4, both-end tail optical fiber detector 5 and testing circuit 6, described tunable laser 1, fiber optic loop 3,
Ring retard 4 and both-end tail optical fiber detector 5 are connected with described polarization spectro five port devices 2, described detection electricity
Road 6 is connected with described both-end tail optical fiber detector 5.
Preferably, described tunable laser 1 connects with the first port of described polarization spectro five port devices 2
Connect, the two ends of described fiber optic loop 3 and the second port of described polarization spectro five port devices 2 and the 3rd port
Connect, the two ends of described ring retard 4 respectively with the 4th port and the both-end tail of polarization spectro five port devices 2
Fine detector 5 connects, described both-end tail optical fiber detector 5 respectively with the 5th of polarization spectro five port devices 2
Port and testing circuit 6 connect.
Preferably, described tunable laser 1 is connected with tunable laser driver 7.
Preferably, described both-end tail optical fiber detector 5 is photoelectricity both-end tail optical fiber detector.
Preferably, it is provided with beam splitter and splicer in described polarization spectro five port devices 2.
In use, driving, temperature control current and tuning square wave letter that tunable laser driver provides are utilized
Number, tunable laser sends polarized optical pulse pulse, and the width of pulse is true by the amplitude tuning signal square wave
Fixed, for 1/2nd of fiber optic loop transition time τ.Polarized optical pulse is divided into two bundle polarizations through five ports
The polarized optical pulse that state is mutually orthogonal, light CW the most clockwise and light CCW counterclockwise.CW and CCW light
It is coupled into fiber optic loop, propagates in opposite directions through fiber optic loop, be coupled into polarization spectro five port devices respectively,
As in figure 2 it is shown, after closing light and light splitting, form the light pulse that two bundles are orthogonal, be coupled into both-end respectively
Tail optical fiber detector and ring retard, light, through transition time τ/2 that time delay is fiber optic loop of ring retard, enters
Entering the other end of both-end tail optical fiber detector, two-beam pulse arrives the time interval of both-end tail optical fiber detector and is
τ/2, two light pulses, after both-end tail optical fiber detector opto-electronic conversion, successively enter testing circuit number
Wordization is sampled.The crystal integrated optical fiber gyroscope instrument of this utility model embodiment, by arrange tunable laser,
Polarization spectro five port devices, fiber optic loop, ring retard, both-end tail optical fiber detector and testing circuit, and can
Tuned laser, fiber optic loop, ring retard and both-end tail optical fiber detector are connected with polarization spectro five port devices,
The structure of light path can be simplified, improve the reliability and stability of optical fibre gyro, reduce the volume of optical fibre gyro,
It is substantially reduced the cost of optical fibre gyro.The above is preferred implementation of the present utility model, it is noted that
For those skilled in the art, in the premise without departing from principle described in the utility model
Under, it is also possible to making some improvements and modifications, these improvements and modifications also should be regarded as protection of the present utility model
Scope.
Claims (5)
1. a crystal integrated optical fiber gyroscope instrument, it is characterised in that described crystal integrated optical fiber gyroscope instrument includes
Tunable laser, polarization spectro five port devices, fiber optic loop, ring retard, both-end tail optical fiber detector and inspection
Slowdown monitoring circuit, described tunable laser, fiber optic loop, ring retard and both-end tail optical fiber detector divide with described polarization
Light five port devices connects, and described testing circuit is connected with described both-end tail optical fiber detector.
Crystal integrated optical fiber gyroscope instrument the most according to claim 1, it is characterised in that described tunable
Laser instrument is connected with the first port of described polarization spectro five port devices, and the two ends of described fiber optic loop are with described
Second port of polarization spectro five port devices and the 3rd port connect, the two ends of described ring retard respectively with partially
4th port of light splitting five port devices of shaking and both-end tail optical fiber detector connect, and described both-end tail optical fiber detector divides
It is not connected with fifth port and the testing circuit of polarization spectro five port devices.
Crystal integrated optical fiber gyroscope instrument the most according to claim 1, it is characterised in that described tunable
Laser instrument is connected with tunable laser driver.
Crystal integrated optical fiber gyroscope instrument the most according to claim 1, it is characterised in that described both-end tail
Fine detector is photoelectricity both-end tail optical fiber detector.
Crystal integrated optical fiber gyroscope instrument the most according to claim 1, it is characterised in that described polarization divides
It is provided with beam splitter and splicer in light five port devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620254777.5U CN205482968U (en) | 2016-03-31 | 2016-03-31 | Integrated fiber gyroscope of crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620254777.5U CN205482968U (en) | 2016-03-31 | 2016-03-31 | Integrated fiber gyroscope of crystal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205482968U true CN205482968U (en) | 2016-08-17 |
Family
ID=56648930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620254777.5U Expired - Fee Related CN205482968U (en) | 2016-03-31 | 2016-03-31 | Integrated fiber gyroscope of crystal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205482968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455270A (en) * | 2019-08-07 | 2019-11-15 | 湖南航天机电设备与特种材料研究所 | A kind of singly polarization wide-spectrum optical fiber light source and optical fibre gyro |
-
2016
- 2016-03-31 CN CN201620254777.5U patent/CN205482968U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455270A (en) * | 2019-08-07 | 2019-11-15 | 湖南航天机电设备与特种材料研究所 | A kind of singly polarization wide-spectrum optical fiber light source and optical fibre gyro |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 350001 North of 1st Floor of Block B, No. 8, Tangxia Road, Jianxin Town, Cangshan District, Fuzhou City, Fujian Province Patentee after: Fuzhou sun Sensing Technology Co.,Ltd. Address before: 100022 Shuangjing Fuli Gemini in Chaoyang District, Beijing Patentee before: SHENZHEN TAIYANGXUN SENSING TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |