CN205483251U - Optic fibre perimeter security protection system light path structure - Google Patents
Optic fibre perimeter security protection system light path structure Download PDFInfo
- Publication number
- CN205483251U CN205483251U CN201620254778.XU CN201620254778U CN205483251U CN 205483251 U CN205483251 U CN 205483251U CN 201620254778 U CN201620254778 U CN 201620254778U CN 205483251 U CN205483251 U CN 205483251U
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- Prior art keywords
- circulator
- optical attenuator
- polarization controller
- waveguide
- adjustable optical
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Abstract
The utility model provides an optic fibre perimeter security protection system light path structure, optic fibre perimeter security protection system light path structure includes: light source, isolator, coupler, Y waveguide, adjustable optical attenuator, circulator, polarization controller, triport integrated optical circuit and detector. Through setting up light source, isolator, coupler, Y waveguide, adjustable optical attenuator, circulator, polarization controller, triport integrated optical circuit and detector, the light path signal that passes through of accuracy changes the vibration information of responding to perimeter security protection system fast, and the convenience is judged the invasion incident.
Description
Technical field
This utility model relates to technical field of optical fiber sensing, particularly relates to a kind of optical fiber perimeter safety-protection system light path
Structure.
Background technology
In recent years, along with the development of national economy, the place important to some, such as financial institution, airport,
It is more and more important that military bases etc. carry out safeguard protection.According to statistics, the half of the threat suffered by these places
All caused due to safety monitoring leak.To the safety and protection system in these places except not by weather,
Outside the impact of the natural conditions such as landform, also wanting can be along with the expansion of safety precaution scope, showing of means of crime
Generationization adjusts timely.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of optical fiber perimeter safety-protection system light channel structure, energy
Enough acquisition invasion information fast and accurately.
For solving above-mentioned technical problem, embodiment of the present utility model provides a kind of optical fiber perimeter safety-protection system light
Line structure, described optical fiber perimeter safety-protection system light channel structure includes: light source, isolator, bonder, Y ripple
Lead, adjustable optical attenuator, circulator, Polarization Controller, three port integrated optical circuit and detectors；Described light
Source is connected with isolator, and described isolator is connected with bonder, and described bonder is connected with Y waveguide, described
Y waveguide is connected with adjustable optical attenuator, and described adjustable optical attenuator is connected with circulator, described circulator with
Polarization Controller connects, and described Polarization Controller and three port integrated optical circuits connect, described circulator and detection
Device connects.
Preferably, described Y waveguide includes the first Y waveguide and the second Y waveguide, described adjustable optical attenuator bag
Include the first adjustable optical attenuator, the second adjustable optical attenuator, the 3rd adjustable optical attenuator and the 4th adjustable light decay
Subtracting device, described circulator includes first annular device, the second circulator and the 3rd circulator, described Polarization Control
Device includes the first Polarization Controller, the second Polarization Controller and the 3rd Polarization Controller, and described detector includes
First detector and the second detector.
Preferably, described bonder and the first Y waveguide and the second Y waveguide connect, described first Y waveguide with
First adjustable optical attenuator and the second adjustable optical attenuator connect, described second Y waveguide and the 3rd adjustable light decay
Subtracting device and the 4th adjustable optical attenuator connects, described first adjustable optical attenuator is connected with first annular device, institute
State the second adjustable optical attenuator and the second circulator connects, described 3rd adjustable optical attenuator and the 4th tunable optical
Attenuator and the 3rd circulator connect, and described first annular device and the first Polarization Controller connect, and described second
Circulator and the second Polarization Controller connect, and described 3rd circulator and the 3rd Polarization Controller connect, described
First Polarization Controller, the second Polarization Controller and the 3rd Polarization Controller and three port integrated optical circuits connect,
Described first detector is connected with described first annular device and the second circulator, and described second detector is with described
3rd circulator connects.
Preferably, set between described 3rd adjustable optical attenuator and the 4th adjustable optical attenuator and the 3rd circulator
Being equipped with polarization beam apparatus, described 3rd adjustable optical attenuator and the 4th adjustable optical attenuator are divided by described polarization
Bundle device and the 3rd circulator connect.
Preferably, described first Polarization Controller and three port integrated optical circuits are connected by sensing optic cable, described
Second Polarization Controller and three port integrated optical circuits are connected by sensing optic cable, described 3rd Polarization Controller with
Three port integrated optical circuits are connected by conduction optical cable.
Preferably, described light source is laser instrument, and described bonder is polarization-maintaining coupler.
Having the beneficial effect that of technique scheme of the present utility model:
In such scheme, by arrange light source, isolator, bonder, Y waveguide, adjustable optical attenuator,
Circulator, Polarization Controller, three port integrated optical circuit and detectors, it is possible to believed by light path fast and accurately
The vibration information of number variation sensing perimeter security system, convenient judges intrusion event.
Accompanying drawing explanation
Fig. 1 is that the optical fiber perimeter safety-protection system light channel structure of this utility model embodiment connects block diagram.
[main element symbol description]
Light source 1, isolator 2, bonder 3, three port integrated optical circuit the 4, first Y waveguide the 5, the 2nd Y
Waveguide the 6, first adjustable optical attenuator the 7, second adjustable optical attenuator 8, the 3rd adjustable optical attenuator 9,
Four adjustable optical attenuators 10, first annular device the 11, second circulator the 12, the 3rd circulator 13, first are inclined
Shake controller the 14, second Polarization Controller the 15, the 3rd Polarization Controller the 16, first detector 17, second
Detector 18, polarization beam apparatus 19, sensing optic cable 20, conduction optical cable 21.
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 optical fiber perimeter safety-protection system light channel structure that embodiment of the present utility model provides,
Described optical fiber perimeter safety-protection system light channel structure includes: light source 1, isolator 2, bonder 3, Y waveguide,
Adjustable optical attenuator, circulator, Polarization Controller, three port integrated optical circuit 4 and detectors；Described light source
Being connected with isolator, described isolator is connected with bonder, and described bonder is connected with Y waveguide, described Y
Waveguide is connected with adjustable optical attenuator, and described adjustable optical attenuator is connected with circulator, and described circulator is with inclined
The controller that shakes connects, and described Polarization Controller and three port integrated optical circuits connect, described circulator and detector
Connect.
Wherein, laser instrument produces luminous power can be at the line polarized light of 0.1～100mW scope, and isolator guarantees
Can pass through from the light entered near light source direction, and be depleted from the light entered away from light source direction, insert
Entering loss should be the least, and isolation can be more than 50dB, and bonder can need to use protects coupling partially
Device, splitting ratio optional 50: 50, Y waveguide realizes optical signal 1 and is divided into 2, and can be by loading electricity
Signal, carries out phase-modulation to optical signal, and adjustable attenuator can realize controllable light letter by adding electrical signals
Number decay, detector can realize optical signal and be converted to electric signal function, and circulator can realize optical signal
The control of optical direction, Polarization Controller can be by the change of the polarization state of electric control optical signal, can be by light
Polarization state a little other points arbitrary in mobile poincare sphere from poincare sphere, three port integrated optical circuits are permissible
Realize light from single-ended to the vertical polarization light splitting of dual-port, and the conjunction interference of light from dual-port to single port.
The optical fiber perimeter safety-protection system light channel structure of this utility model embodiment, by arrange light source, isolator,
Bonder, Y waveguide, adjustable optical attenuator, circulator, Polarization Controller, three port integrated optical circuit and spies
Survey device, it is possible to fast and accurately by the vibration information of optical path signal variation sensing perimeter security system, convenient
Intrusion event is judged.
Preferably, described Y waveguide includes the first Y waveguide 5 and the second Y waveguide 6, described variable optical attenuation
Device includes first adjustable optical attenuator the 7, second adjustable optical attenuator 8, the 3rd adjustable optical attenuator 9 and
Four adjustable optical attenuators 10, described circulator includes first annular device the 11, second circulator 12 and the 3rd ring
Shape device 13, described Polarization Controller includes first Polarization Controller the 14, second Polarization Controller 15 and the 3rd
Polarization Controller 16, described detector includes the first detector 17 and the second detector 18.
Preferably, described bonder 3 is connected with the first Y waveguide 5 and the second Y waveguide 6, a described Y
Waveguide 5 is connected with the first adjustable optical attenuator 7 and the second adjustable optical attenuator 8, described second Y waveguide 6
It is connected with the 3rd adjustable optical attenuator 9 and the 4th adjustable optical attenuator 10, described first adjustable optical attenuator
7 are connected with first annular device 11, and described second adjustable optical attenuator 8 is connected with the second circulator 12, institute
State the 3rd adjustable optical attenuator 9 and the 4th adjustable optical attenuator 10 is connected with the 3rd circulator 13, described
One circulator 11 is connected with the first Polarization Controller 14, described second circulator 12 and the second Polarization Control
Device 15 connects, and described 3rd circulator 13 is connected with the 3rd Polarization Controller 16, described first polarization control
Device the 14, second Polarization Controller 15 processed and the 3rd Polarization Controller 16 are connected with three port integrated optical circuits 4,
Described first detector 17 is connected with described first annular device 11 and the second circulator 12, and described second visits
Survey device 18 to be connected with described 3rd circulator 13.
Wherein, the first detector can be connected with described first annular device and the second circulator by a bonder
Connect.
Preferably, described 3rd adjustable optical attenuator 9 and the 4th adjustable optical attenuator 10 and the 3rd circulator
Polarization beam apparatus 19, described 3rd adjustable optical attenuator 9 and the 4th adjustable optical attenuator it is provided with between 13
10 are connected with the 3rd circulator 13 by described polarization beam apparatus 19.
Wherein, polarization beam apparatus can be by the light of two-route wire polarisation synthesis vertical polarization, and the light therefore synthesized is not
Can interfere.
Preferably, described first Polarization Controller 14 and three port integrated optical circuits 4 are by sensing optic cable 20
Connecting, described second Polarization Controller 15 is connected by sensing optic cable 20 with three port integrated optical circuits 4, institute
State the 3rd Polarization Controller 16 to be connected by conduction optical cable 21 with three port integrated optical circuits 4.
Wherein, the optical cable that sensing optic cable is i.e. sensitive to disturbing signal, conduction optical cable is i.e. insensitive to disturbing signal
Optical cable, be only used for transmitting optical signal.
Preferably, described light source 1 is laser instrument, and described bonder 3 is polarization-maintaining coupler.
The optical fiber perimeter safety-protection system light channel structure of this utility model embodiment, light sends from light source, through every
From device, after bonder, it is being divided into two-way, respectively CW light and CCW light.CW light is through a Y ripple
Two-way it is divided into enter in sensing optic cable respectively through after an adjustable attenuator and a Polarization Controller after leading.
CW light carries out closing the interference of light through three port integrated optical circuits after interfering arm, after conduction optical cable,
After a circulator, be converted to the signal of telecommunication by detector.CCW light is divided into two after a Y waveguide
Road is not interfered respectively through realizing after an adjustable attenuator closing light in polarization beam apparatus.After closing light
CCW light enters three port integrated optical circuits, at three port collection after a Polarization Controller is by conduction optical cable
Become light path to carry out light splitting and respectively enter two sensing optic cables.After two sensing optic cables CCW light respectively through
After one Polarization Controller and a circulator, carry out closing the interference of light by bonder, be converted to by detector
The signal of telecommunication.
By Y waveguide plus modulated signal, the interference signal of amplitude of variation can be detected on the detector,
Thus detect the weak size with polarization phase-shifting of polarization.And four light can be controlled by adjustable attenuator and believe
Number luminous power balance, can the impact of weak with compensating polarizing in polarization phase-shifting by Polarization Control.
The above is preferred implementation of the present utility model, it is noted that general for the art
For logical technical staff, on the premise of without departing from principle described in the utility model, it is also possible to make some changing
Entering and retouch, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (6)
1. an optical fiber perimeter safety-protection system light channel structure, it is characterised in that described optical fiber perimeter safety-protection system
Light channel structure includes: light source, isolator, bonder, Y waveguide, adjustable optical attenuator, circulator, partially
Shake controller, three port integrated optical circuit and detectors；Described light source is connected with isolator, described isolator with
Bonder connects, and described bonder is connected with Y waveguide, and described Y waveguide is connected with adjustable optical attenuator, institute
Stating adjustable optical attenuator to be connected with circulator, described circulator is connected with Polarization Controller, described Polarization Control
Device and three port integrated optical circuits connect, and described circulator is connected with detector.
Optical fiber perimeter safety-protection system light channel structure the most according to claim 1, it is characterised in that described
Y waveguide includes the first Y waveguide and the second Y waveguide, and described adjustable optical attenuator includes the first variable optical attenuation
Device, the second adjustable optical attenuator, the 3rd adjustable optical attenuator and the 4th adjustable optical attenuator, described circulator
Including first annular device, the second circulator and the 3rd circulator, described Polarization Controller includes the first polarization control
Device processed, the second Polarization Controller and the 3rd Polarization Controller, described detector includes the first detector and second
Detector.
Optical fiber perimeter safety-protection system light channel structure the most according to claim 2, it is characterised in that described
Bonder and the first Y waveguide and the second Y waveguide connect, described first Y waveguide and the first adjustable optical attenuator
Connect with the second adjustable optical attenuator, described second Y waveguide and the 3rd adjustable optical attenuator and the 4th tunable optical
Attenuator connects, and described first adjustable optical attenuator is connected with first annular device, described second variable optical attenuation
Device and the second circulator connect, described 3rd adjustable optical attenuator and the 4th adjustable optical attenuator and the 3rd annular
Device connects, and described first annular device and the first Polarization Controller connect, described second circulator and the second polarization
Controller connects, and described 3rd circulator and the 3rd Polarization Controller connect, described first Polarization Controller,
Second Polarization Controller and the 3rd Polarization Controller and three port integrated optical circuits connect, described first detector with
Described first annular device and the second circulator connect, and described second detector is connected with described 3rd circulator.
Optical fiber perimeter safety-protection system light channel structure the most according to claim 3, it is characterised in that described
It is provided with polarization beam apparatus between 3rd adjustable optical attenuator and the 4th adjustable optical attenuator and the 3rd circulator,
Described 3rd adjustable optical attenuator and the 4th adjustable optical attenuator are by described polarization beam apparatus and the 3rd annular
Device connects.
5., according to the optical fiber perimeter safety-protection system light channel structure described in claim 3 or 4 any one, it is special
Levying and be, described first Polarization Controller and three port integrated optical circuits are connected by sensing optic cable, and described second
Polarization Controller and three port integrated optical circuits are connected by sensing optic cable, described 3rd Polarization Controller and three ends
Mouth integrated optical circuit is connected by conduction optical cable.
Optical fiber perimeter safety-protection system light channel structure the most according to claim 1, it is characterised in that described
Light source is laser instrument, and described bonder is polarization-maintaining coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620254778.XU CN205483251U (en) | 2016-03-31 | 2016-03-31 | Optic fibre perimeter security protection system light path structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620254778.XU CN205483251U (en) | 2016-03-31 | 2016-03-31 | Optic fibre perimeter security protection system light path structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205483251U true CN205483251U (en) | 2016-08-17 |
Family
ID=56648870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620254778.XU Expired - Fee Related CN205483251U (en) | 2016-03-31 | 2016-03-31 | Optic fibre perimeter security protection system light path structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205483251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768270A (en) * | 2016-11-24 | 2017-05-31 | 三峡大学 | A kind of superweak fiber grating perimeter security system |
| CN111337052A (en) * | 2020-03-20 | 2020-06-26 | 北京世维通光智能科技有限公司 | Y waveguide parameter measuring instrument, measuring system and measuring method |
-
2016
- 2016-03-31 CN CN201620254778.XU patent/CN205483251U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768270A (en) * | 2016-11-24 | 2017-05-31 | 三峡大学 | A kind of superweak fiber grating perimeter security system |
| CN106768270B (en) * | 2016-11-24 | 2019-07-02 | 三峡大学 | A kind of superweak fiber grating perimeter security system |
| CN111337052A (en) * | 2020-03-20 | 2020-06-26 | 北京世维通光智能科技有限公司 | Y waveguide parameter measuring instrument, measuring system and measuring method |
| CN111337052B (en) * | 2020-03-20 | 2024-03-22 | 北京世维通光智能科技有限公司 | Y waveguide parameter measuring instrument, measuring system and measuring method |
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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 |
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. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |