CN204009226U - A kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers - Google Patents
A kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers Download PDFInfo
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- CN204009226U CN204009226U CN201420412712.XU CN201420412712U CN204009226U CN 204009226 U CN204009226 U CN 204009226U CN 201420412712 U CN201420412712 U CN 201420412712U CN 204009226 U CN204009226 U CN 204009226U
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- pressure disc
- photonic crystal
- crystal fibers
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Abstract
Based on a Polarization Controller for Hollow-Core Photonic Crystal Fibers, it is characterized in that: formed by distributed feedback laser (1), incident optical (2), the polarizer (3), connection optical fiber (4) and Hollow-Core Photonic Crystal Fibers (5), pressure disc (6), outgoing optical fiber (7), polaroid analyze (8); Distributed feedback laser (1) is connected by incident optical (2) with the polarizer (3), Hollow-Core Photonic Crystal Fibers (5) is connected by fibre-optical splice with incident optical (2), pressure disc (6) comprises three identical parts, three pressure disc are fixed on Hollow-Core Photonic Crystal Fibers, first pressure disc and second pressure disc angle are 45 °, second pressure disc and the 3rd pressure disc angle are 45 °, and polaroid analyze (8) is connected with Hollow-Core Photonic Crystal Fibers (5) by outgoing optical fiber (7).The utility model is easy to calibration, insertion loss is little, compatible good, simple to operate, can be applied to and obtain all kinds of polarized lights, has good practical value and wide application prospect.
Description
Technical field
The invention provides a kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers, belong to optical fiber polarisation technical field.
Background technology
Hollow-Core Photonic Crystal Fibers is made up of the fibre core of the microstructure cladding with pore and hollow, transporting mechanism and traditional fibre core inner total reflection leaded light mechanism have essential difference, therefore Hollow-Core Photonic Crystal Fibers compares with traditional real core silicon optical fiber the performance that has a lot of uniquenesses, if do not produced nonlinear effect, the damage threshold of optical fiber is also higher, low bending loss, fiber end face Fresnel reflection is estimated to be less than 10
-4, earth silicon material composition can reach 60%, the processing such as the welding of convenience and conventional optical fibers, and the material of optical fiber is made up of single pure silicon dioxide, is conducive to improve the temperature stability of optical fiber.
Summary of the invention
The object of the present invention is to provide a kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers.This device can obtain various types of polarized lights to the size of three pressure disc applied pressures by regulating.There is the features such as simple in structure, compatibility is good.
The present invention is achieved through the following technical solutions:
Based on a Polarization Controller for Hollow-Core Photonic Crystal Fibers, it is characterized in that: formed by distributed feedback laser (1), incident optical (2), the polarizer (3), connection optical fiber (4) and Hollow-Core Photonic Crystal Fibers (5), pressure disc (6), outgoing optical fiber (7), polaroid analyze (8); Distributed feedback laser (1) is connected by incident optical (2) with the polarizer (3), Hollow-Core Photonic Crystal Fibers (5) is connected by fibre-optical splice with incident optical (2), pressure disc (6) comprises three identical parts, three pressure disc are fixed on Hollow-Core Photonic Crystal Fibers, first pressure disc and second pressure disc angle are 45 degree, second pressure disc and the 3rd pressure disc angle are 45 degree, and polaroid analyze (8) is connected with Hollow-Core Photonic Crystal Fibers (5) by outgoing optical fiber (7).
Described a kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers, it is characterized in that: 10.9 microns of Hollow-Core Photonic Crystal Fibers (5) core diameter average out to, covering airport spacing is 3.8 microns, 70 microns of porous regional diameters, central task wavelength 1550 nanometers.
Described a kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers, it is characterized in that: pressure disc (6) comprises three identical parts, all be fixed on Hollow-Core Photonic Crystal Fibers (5), each pressure disc period profile length is about 20 millimeters, first pressure disc and second pressure disc angle are 45 degree, and second pressure disc and the 3rd pressure disc angle are 45 degree.
Principle of work of the present invention is: distributed feedback laser (1) is sent the light wave that centre wavelength is 1550 nanometers, enter the polarizer (3) by incident optical (2), from the polarizer (3), outgoing is linearly polarized light, and linearly polarized light enters Hollow-Core Photonic Crystal Fibers (5) by connecting optical fiber (4).Above Hollow-Core Photonic Crystal Fibers, there are three identical pressure disc, for this part optical fiber is exerted pressure, first pressure disc and second pressure disc angle are 45 degree, second pressure disc and the 3rd pressure disc angle are 45 degree, in the time Hollow-Core Photonic Crystal Fibers being exerted pressure by each pressure disc, can there is deformation in optical fiber, the deformation of fibre core and covering airport all can cause the birefringence effect of Hollow-Core Photonic Crystal Fibers, the difference of the pressure of three different directions can produce different two tearing open and penetrate effect, thereby the linear polarization polarized state of light of propagating in optical fiber also can produce polarized light of different nature along with the difference of Hollow-Core Photonic Crystal Fibers deformation, the state of polarized light can be determined by polaroid analyze.
The invention has the beneficial effects as follows: this device can be by regulating the size that exert pressure to pressure disc to obtain all kinds polarized light the advantage such as this Polarization Controller has simple in structure, easy operating simultaneously, loss is little, compatibility is good.
Brief description of the drawings
Fig. 1 is the Polarization Controller schematic diagram based on Hollow-Core Photonic Crystal Fibers of the present invention;
Fig. 2 is the relation of pressure size and birefraction phase differential during corresponding to different surrounding layer thickness of the present invention;
Fig. 3 is Hollow-Core Photonic Crystal Fibers of the present invention deformation schematic diagram under pressure;
Fig. 4 is that the poincare sphere of polarized light state of the present invention is analyzed schematic diagram;
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described:
Referring to accompanying drawing 1, based on a Polarization Controller for Hollow-Core Photonic Crystal Fibers, it is characterized in that: formed by distributed feedback laser (1), incident optical (2), the polarizer (3), connection optical fiber (4) and Hollow-Core Photonic Crystal Fibers (5), pressure disc (6), outgoing optical fiber (7), polaroid analyze (8); Distributed feedback laser (1) is connected by incident optical (2) with the polarizer (3), Hollow-Core Photonic Crystal Fibers (6) is connected by fibre-optical splice with incident optical (2), pressure disc (6) comprises three identical parts, three pressure disc are fixed on Hollow-Core Photonic Crystal Fibers, first pressure disc and second pressure disc angle are 45 degree, second pressure disc and the 3rd pressure disc angle are 45 degree, and polaroid analyze (8) is connected with Hollow-Core Photonic Crystal Fibers (5) by outgoing optical fiber (7).
Distributed feedback laser (1) centre wavelength of selecting in this example is 1550 nanometers, connect optical fiber (4), incident optical (2) and outgoing optical fiber (7) all taking core diameter as 9 microns, cladding diameter is the single-mode fiber of 125 microns, and Hollow-Core Photonic Crystal Fibers is about 10.9 microns as Polarization Controller core diameter.Fig. 2 is the schematic diagram that is related to of pressure size of the present invention and birefraction phase differential, and when in cycle 20 millimeters of situations, introducing the required pressure of 360 degree phase differential is 7.5*10
6handkerchief, cladding thickness is now 25 microns, if cladding thickness is reduced to 10 microns, required pressure is only 1.25*10
6handkerchief.Fig. 3 is the deformation schematic diagram of Hollow-Core Photonic Crystal Fibers under impressed pressure, and deformation all can occur the pore in fibre core and covering under pressure, thereby causes the birefringence effect in optical fiber, and this is the principle of work of this Polarization Controller.Fig. 4 is that the poincare sphere that polarized light state is corresponding is analyzed schematic diagram, first dish is exerted pressure and is made the state of polarized light along SS ' variation, second dish exerted pressure and made the state of polarized light along S ' S " variation; the 3rd dish exerted pressure and made the state of polarized light along S " S " '; the polarized light of random polarization state all can obtain by the size that regulates three pressure disc to exert pressure, and the final polarization state of output polarization light is S " '.
Claims (3)
1. the Polarization Controller based on Hollow-Core Photonic Crystal Fibers, is characterized in that: be made up of distributed feedback laser (1), incident optical (2), the polarizer (3), connection optical fiber (4) and Hollow-Core Photonic Crystal Fibers (5), pressure disc (6), outgoing optical fiber (7), polaroid analyze (8), distributed feedback laser (1) is connected by incident optical (2) with the polarizer (3), Hollow-Core Photonic Crystal Fibers (5) is connected by fibre-optical splice with incident optical (2), pressure disc (6) comprises three identical parts, three pressure disc are fixed on Hollow-Core Photonic Crystal Fibers, first pressure disc and second pressure disc angle are 45 degree, second pressure disc and the 3rd pressure disc angle are 45 degree, polaroid analyze (8) is connected with Hollow-Core Photonic Crystal Fibers (5) with fibre-optical splice (4) by outgoing optical fiber (7).
2. a kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers according to claim 1, it is characterized in that: 10.9 microns of Hollow-Core Photonic Crystal Fibers (5) core diameter average out to, covering airport spacing is 3.8 microns, 70 microns of porous regional diameters, central task wavelength 1550 nanometers.
3. a kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers according to claim 1, it is characterized in that: pressure disc (6) comprises three identical parts, all be fixed on Hollow-Core Photonic Crystal Fibers (5), each pressure disc period profile length is about 20 millimeters, the angle of first pressure disc and second pressure disc is 45 degree, and the angle of second pressure disc and the 3rd pressure disc is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420412712.XU CN204009226U (en) | 2014-07-23 | 2014-07-23 | A kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420412712.XU CN204009226U (en) | 2014-07-23 | 2014-07-23 | A kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers |
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| CN204009226U true CN204009226U (en) | 2014-12-10 |
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| CN201420412712.XU Expired - Fee Related CN204009226U (en) | 2014-07-23 | 2014-07-23 | A kind of Polarization Controller based on Hollow-Core Photonic Crystal Fibers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076505A (en) * | 2014-07-23 | 2014-10-01 | 中国计量学院 | Polarization controller based on hollow pohotonic crystal fiber |
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2014
- 2014-07-23 CN CN201420412712.XU patent/CN204009226U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076505A (en) * | 2014-07-23 | 2014-10-01 | 中国计量学院 | Polarization controller based on hollow pohotonic crystal fiber |
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| 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: 20141210 Termination date: 20160723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |