CN102645704A - Secondary 90-degree rotatably-welded polarizing optical fiber resonant cavity - Google Patents
Secondary 90-degree rotatably-welded polarizing optical fiber resonant cavity Download PDFInfo
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- CN102645704A CN102645704A CN2012101036656A CN201210103665A CN102645704A CN 102645704 A CN102645704 A CN 102645704A CN 2012101036656 A CN2012101036656 A CN 2012101036656A CN 201210103665 A CN201210103665 A CN 201210103665A CN 102645704 A CN102645704 A CN 102645704A
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- 230000010287 polarization Effects 0.000 abstract description 29
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Abstract
The invention discloses a secondary 90-degree rotatably-welded polarizing optical fiber resonant cavity. The secondary 90-degree rotatably-welded polarizing optical fiber resonant cavity comprises a first polarization-maintaining fiber coupler, a first 90-degree rotary welding point, a third tail fiber, a second polarizer, a fourth tail fiber and a second 90-degree rotary welding point, wherein the first polarization-maintaining fiber coupler comprises a first tail fiber, a second tail fiber, the third tail fiber and the fourth tail fiber; and an optical fiber ring is combined by a first tail fiber, the first 90-degree rotary welding point, the third tail fiber, the second polarizer, the fourth tail fiber, a second 90-degree rotary welding point and the second tail fiber. The secondary 90-degree rotatably-welded polarizing optical fiber resonant cavity disclosed by the invention compensates double refraction of the resonant cavity, inhibits the resonance in one intrinsic polarization state, avoids the mutual coupling between the intrinsic polarization states, improves the temperature stability of a resonant type fiber-optic gyroscope in a full temperature range, and has important scientific meanings and application values.
Description
Technical field
The present invention relates to fiber resonance cavity, relate in particular to the fine resonator cavity of a polarisation of a kind of 2 90 ° of spin weldings.
Background technology
The polarization maintaining optical fibre resonator cavity is the core sensing unit of resonance type optical fiber gyro, and with an output terminal of one 2 * 2 polarization-maintaining fiber coupler, feedback is connected to and its corresponding input end, has just constituted a reflective cavity resonator structure the most basic.(Eigenstate of polarization ESOP) refers in fiber resonance cavity, transmit the polarization state that still remains unchanged after the week to polarization eigen state.Fiber resonance cavity generally includes two ESOPs.Defective of polarization-maintaining fiber coupler (the uncorrelated loss of polarization interference and polarization) and polarization maintaining optical fibre birefringence are to the sensitivity of temperature; Caused two ESOPs to intercouple; Not only mutual superposition on amplitude, and interference has each other been introduced great polarization noise in resonance type optical fiber gyro.
For overcoming the influence of polarization noise, the fiber resonance cavity of multiple structure is suggested.Summarize and opinion, these fiber resonance cavities can be divided into two types: one type is the fiber resonance cavity of polarization rotation, and one type has been inclined to one side fiber resonance cavity.The fiber resonance cavity of polarization rotation through 90 degree spin weldings once or twice, keeps the relatively stable of two ESOPs, suppresses the susceptibility of polarization noise to temperature.Underexcitation plays two equal ESOPs to the spin welding of one time 90 degree in the chamber, has introduced bigger polarization interference noise, and possible secondary Kerr effect.The spin welding of twice 90 degree can be at certain specific temperature spot, the resonance that has only encouraged certain ESOP, but can't in full temperature scope, suppress polarization noise.Play inclined to one side fiber resonance cavity,, suppress the resonance of certain ESOP, but still can introduce bigger polarization noise through in the chamber, adding polarizer.Therefore say that current fiber resonance cavity can't suppress the polarization noise of resonance type optical fiber gyro effectively.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, the fine resonator cavity of a polarisation of a kind of 2 90 ° of spin weldings is provided.
The inclined to one side mirror based fiber optica resonator cavity that rises of a kind of 2 90 ° of spin weldings comprises first polarization-maintaining fiber coupler, the one 90 ° of spin welding point, the 3rd tail optical fiber, second polarizer, the 4th tail optical fiber, the 2 90 ° of spin welding point; First polarization-maintaining fiber coupler comprises first tail optical fiber, second tail optical fiber, the 3rd tail optical fiber, the 4th tail optical fiber; By first tail optical fiber, the one 90 ° of spin welding point, the 3rd tail optical fiber, second polarizer, the 4th tail optical fiber, the 2 90 ° of spin welding point and the second tail optical fiber combination of fiber-optic ring.
Be connected with first polarizer between first tail optical fiber in the said fiber optic loop and the one 90 ° of spin welding point; Be connected with the 3rd polarizer between second tail optical fiber in the perhaps said fiber optic loop and the 2 90 ° of spin welding point; Be connected with first polarizer between first tail optical fiber in the perhaps said fiber optic loop and the one 90 ° of spin welding point, be connected with the 3rd polarizer between second tail optical fiber and the 2 90 ° of spin welding point simultaneously.
The length sum of described first tail optical fiber, second tail optical fiber equates that with the length sum of the 3rd tail optical fiber, the 4th tail optical fiber error is in 1cm; The perhaps equal in length of first tail optical fiber, second tail optical fiber, the 3rd tail optical fiber, the 4th tail optical fiber, error is in 1cm.
Another kind of 2 90 ° of spin weldings play inclined to one side transmission fiber resonance cavity, it is characterized in that comprising second polarization-maintaining fiber coupler, the 3 90 ° of spin welding point, the 5th polarizer, the 3rd polarization-maintaining fiber coupler, the 4 90 ° of spin welding point; Second polarization-maintaining fiber coupler comprises the 7th tail optical fiber, the tenth tail optical fiber, the 11 tail optical fiber, the 12 tail optical fiber; The 3rd polarization-maintaining fiber coupler comprises the 8th tail optical fiber, the 9th tail optical fiber, the 13 tail optical fiber, the 14 tail optical fiber; Form fiber optic loop by second polarization-maintaining fiber coupler, the 3 90 ° of spin welding point, the 5th polarizer, the 3rd polarization-maintaining fiber coupler, the 4 90 ° of spin welding point.
Be connected with fourth inclined to one side device between the 7th tail optical fiber in the said fiber optic loop and the 3 90 ° of spin welding point; Be connected with the 6th polarizer between the 9th tail optical fiber in the perhaps said fiber optic loop and the 4 90 ° of spin welding point, be connected with the 7th polarizer between the tenth tail optical fiber in the perhaps said fiber optic loop and the 4 90 ° of spin welding point.
Be connected with fourth inclined to one side device between the 7th tail optical fiber in the said fiber optic loop and the 3 90 ° of spin welding point, be connected with the 6th polarizer between the 9th tail optical fiber and the 4 90 ° of spin welding point simultaneously; Perhaps be connected with fourth inclined to one side device between the 7th tail optical fiber and the 3 90 ° of spin welding point, be connected with the 7th polarizer between the tenth tail optical fiber and the 4 90 ° of spin welding point simultaneously; Perhaps be connected with the 6th polarizer between the 9th tail optical fiber and the 4 90 ° of spin welding point, be connected with the 7th polarizer between the tenth tail optical fiber and the 4 90 ° of spin welding point simultaneously.
Be connected with fourth inclined to one side device between the 7th tail optical fiber in the said fiber optic loop and the 3 90 ° of spin welding point; Be connected with the 6th polarizer between the 9th tail optical fiber and the 4 90 ° of spin welding point, be connected with the 7th polarizer between the tenth tail optical fiber and the 4 90 ° of spin welding point.
The length sum of described the 7th tail optical fiber, the tenth tail optical fiber equates that with the length sum of the 8th tail optical fiber, the 9th tail optical fiber error is in 1cm; The perhaps equal in length of the 7th tail optical fiber, the tenth tail optical fiber, the 8th tail optical fiber, the 9th tail optical fiber, error is in 1cm.
The beneficial effect that the present invention compared with prior art has:
1) the present invention has utilized 2 90 ° of spin welding chambeies and has played the advantage separately in inclined to one side chamber, and acting in conjunction has produced new good characteristic.The present invention has compensated the birefringence of polarization maintaining optical fibre in the chamber, has reduced the sensitivity of fiber resonance cavity to temperature, has retrained two ESOPs in fast axle or slow axis work, has only excited the resonance of an ESOP, has suppressed amplitude noise and interaction noise that polarization is introduced.
2) than the fiber resonance cavity that only uses 2 90 ° of spin weldings, the present invention can keep the stable of ESOPs in full temperature scope, avoided intercoupling between the ESOPs, has kept the stable of main resonance.There is special requirement in 2 90 ° of spin welding chambeies to the fiber lengths difference of weld 2 sides, and the present invention is as long as the fiber lengths error of weld both sides within 1cm, has greatly reduced the difficulty in system chamber.
3) play inclined to one side fiber resonance cavity in the chamber than only using, cavity total birefringence of the present invention is little, has overcome to play the fine resonator cavity of polarisation in the chamber to the not enough problem of polarization noise inhibition ability, efficiently solves the polarization noise of resonance type optical gyroscope.
Description of drawings
Fig. 1 is the inclined to one side mirror based fiber optica resonator cavity that rises of a kind of 2 90 ° of spin weldings;
Fig. 2 is the inclined to one side transmission fiber resonance cavity that rises of another kind of 2 90 ° of spin weldings;
Among the figure: first polarization-maintaining fiber coupler 1, first tail optical fiber 2, the 3, the 1 ° of spin welding point of first polarizer 4, the 3rd tail optical fiber 5, second polarizer 6, the 7, the 2 90 ° of spin welding point of the 4th tail optical fiber 8, the three polarizers 9, second tail optical fiber 10, the 5th tail optical fiber 11, the 6th tail optical fiber 12, second polarization-maintaining fiber coupler 13, the 7th tail optical fiber 14, the 15, the 3 90 ° of spin welding point of fourth inclined to one side device 16, the 5th polarizer 17, the 8th tail optical fiber 18, the 3rd polarization-maintaining fiber coupler 19, the 9th tail optical fiber 20, the 21, the 4 90 ° of spin welding point of the 6th polarizer 22, the 7th polarizer 23, the tenth tail optical fiber the 24, the 11 tail optical fiber the 25, the 12 tail optical fiber the 26, the 13 tail optical fiber the 27, the 14 tail optical fiber 28.
Embodiment
As shown in Figure 1, the inclined to one side mirror based fiber optica resonator cavity that rises of a kind of 2 90 ° of spin weldings comprises the 1, the 1 ° of spin welding point of first polarization-maintaining fiber coupler 4, the 3rd tail optical fiber 5, second polarizer 6, the 7, the 2 90 ° of spin welding point 8 of the 4th tail optical fiber; First polarization-maintaining fiber coupler 1 comprises first tail optical fiber 2, second tail optical fiber 10, the 3rd tail optical fiber 11, the 4th tail optical fiber 12; By the 2, the 1 ° of spin welding point of first tail optical fiber 4, the 3rd tail optical fiber 5, second polarizer 6, the 7, the 2 90 ° of spin welding point 8 of the 4th tail optical fiber and second tail optical fiber, 10 combination of fiber-optic rings.
Be connected with first polarizer 3 between first tail optical fiber 2 in the said fiber optic loop and the one 90 ° of spin welding point 4; Be connected with the 3rd polarizer 9 between second tail optical fiber 10 in the perhaps said fiber optic loop and the 2 90 ° of spin welding point 8; Be connected with first polarizer 3 between first tail optical fiber 2 in the perhaps said fiber optic loop and the one 90 ° of spin welding point 4, be connected with the 3rd polarizer 9 between second tail optical fiber 10 and the 2 90 ° of spin welding point 8 simultaneously.
When the incident light at first polarization-maintaining fiber coupler, 1 place is that slow axis rises when inclined to one side, second polarizer 6 is that fast axle plays logical partially light, and first polarizer 3 and the 3rd polarizer 9 lead to light partially for slow axis rises; When the incident light at first polarization-maintaining fiber coupler, 1 place is that fast axle rises when inclined to one side, second polarizer 6 is logical partially light for slow axis rises, and first polarizer 3 and the 3rd polarizer 9 be to lead to soon spool light partially.The polarizer constrains in ESOPs on fast axle or the slow axis in the chamber, has suppressed the resonance of certain ESOP simultaneously, makes a resonance that has encouraged an ESOP in the chamber.
The length sum of described first tail optical fiber 2, second tail optical fiber 10 equates that with the length sum of the 3rd tail optical fiber 5, the 4th tail optical fiber 7 error is in 1cm; The perhaps equal in length of first tail optical fiber 2, second tail optical fiber 10, the 3rd tail optical fiber 5, the 4th tail optical fiber 7, error is in 1cm.The fiber lengths error control of weld both sides can compensate the birefringence that polarization maintaining optical fibre is introduced effectively within 1cm, reduced the susceptibility of fiber resonance cavity to temperature.
As shown in Figure 2, the inclined to one side transmission fiber resonance cavity that rises of another kind of 2 90 ° of spin weldings comprises the 13, the 3 90 ° of spin welding point of second polarization-maintaining fiber coupler 16, the 5th polarizer 17, the 19, the 4 90 ° of spin welding point 22 of the 3rd polarization-maintaining fiber coupler; Second polarization-maintaining fiber coupler 13 comprises the 7th tail optical fiber 14, the tenth tail optical fiber the 24, the 11 tail optical fiber the 25, the 12 tail optical fiber 26; The 3rd polarization-maintaining fiber coupler 19 comprises the 8th tail optical fiber 18, the 9th tail optical fiber the 20, the 13 tail optical fiber the 27, the 14 tail optical fiber 28; Form fiber optic loop by the 13, the 3 90 ° of spin welding point of second polarization-maintaining fiber coupler 16, the 5th polarizer 17, the 19, the 4 90 ° of spin welding point 22 of the 3rd polarization-maintaining fiber coupler.
Be connected with fourth inclined to one side device 15 between the 7th tail optical fiber 14 in the said fiber optic loop and the 3 90 ° of spin welding point 16; Be connected with the 6th polarizer 21 between the 9th tail optical fiber 20 in the perhaps said fiber optic loop and the 4 90 ° of spin welding point 22, be connected with the 7th polarizer 23 between the tenth tail optical fiber 24 in the perhaps said fiber optic loop and the 4 90 ° of spin welding point 22.
Be connected with fourth inclined to one side device 15 between the 7th tail optical fiber 14 in the said fiber optic loop and the 3 90 ° of spin welding point 16, be connected with the 6th polarizer 21 between the 9th tail optical fiber 20 and the 4 90 ° of spin welding point 22 simultaneously; Perhaps be connected with fourth inclined to one side device 15 between the 7th tail optical fiber 14 and the 3 90 ° of spin welding point 16, be connected with the 7th polarizer 23 between the tenth tail optical fiber 24 and the 4 90 ° of spin welding point 22 simultaneously; Perhaps be connected with the 6th polarizer 21 between the 9th tail optical fiber 20 and the 4 90 ° of spin welding point 22, be connected with the 7th polarizer 23 between the tenth tail optical fiber 24 and the 4 90 ° of spin welding point 22 simultaneously.
Be connected with fourth inclined to one side device 15 between the 7th tail optical fiber 14 in the said fiber optic loop and the 3 90 ° of spin welding point 16; Be connected with between the 6th polarizer 21, the ten tail optical fibers 24 and the 4 90 ° of spin welding point 22 between the 9th tail optical fiber 20 and the 4 90 ° of spin welding point 22 and be connected with the 7th polarizer 23.
If light is at second polarization-maintaining fiber coupler 13 a places incident polarization of waiting a moment, fourth inclined to one side device 15 and the 7th polarizer 23 slow axis play logical partially light so, and the 5th polarizer 17 leads to light partially with 21 fast of the 6th polarizers; If light is at the second polarization-maintaining fiber coupler 13 places incident and fast axle polarization, fourth inclined to one side device 15 and the 7th polarizer 23 fast axles play logical partially light so, and the 5th polarizer 17 and the 6th polarizer 21 slow axis play logical partially light.If light is at the 3rd polarization-maintaining fiber coupler 19 places incident and fast axle polarization, fourth inclined to one side device 15 and the 7th polarizer 23 slow axis play logical partially light so, and the 5th polarizer 17 and the 6th polarizer 21 fast axles play logical partially light; If light is at the 3rd polarization-maintaining fiber coupler 19 a places incident polarization of waiting a moment, fourth inclined to one side device 15 rises with the 7th polarizer 23 fast axles and leads to light partially so, and the 5th polarizer 17 and the 6th polarizer 21 slow axis rise and lead to light partially.The polarizer constrains in ESOPs on fast axle or the slow axis in the chamber, has suppressed the resonance of certain ESOP simultaneously, makes a resonance that has encouraged an ESOP in the chamber.
The length sum of described the 7th tail optical fiber 14, the tenth tail optical fiber 24 equates that with the length sum of the 8th tail optical fiber 18, the 9th tail optical fiber 20 error is in 1cm; The perhaps equal in length of the 7th tail optical fiber 14, the tenth tail optical fiber 24, the 8th tail optical fiber 18, the 9th tail optical fiber 20, error is in 1cm.The fiber lengths error control of weld both sides can compensate the birefringence that polarization maintaining optical fibre is introduced effectively within 1cm, reduced the susceptibility of fiber resonance cavity to temperature.
The described polarizer of Fig. 1 and Fig. 2 comprises the online polarizer of single polarization fiber, metal coating and the optical fiber polarizer of 45 ° of all forms such as the fiber grating polarizer; The optical fiber polarizer can welding also can directly being made on the tail optical fiber on the tail optical fiber, become the part of tail optical fiber.
Claims (8)
1. an inclined to one side mirror based fiber optica resonator cavity of 2 90 ° of spin weldings is characterized in that comprising first polarization-maintaining fiber coupler (1), the one 90 ° of spin welding point (4), the 3rd tail optical fiber (5), second polarizer (6), the 4th tail optical fiber (7), the 2 90 ° of spin welding point (8); First polarization-maintaining fiber coupler (1) comprises first tail optical fiber (2), second tail optical fiber (10), the 3rd tail optical fiber (11), the 4th tail optical fiber (12); By first tail optical fiber (2), the one 90 ° of spin welding point (4), the 3rd tail optical fiber (5), second polarizer (6), the 4th tail optical fiber (7), the 2 90 ° of spin welding point (8) and second tail optical fiber (10) combination of fiber-optic ring.
2. an inclined to one side mirror based fiber optica resonator cavity of a kind of 2 90 ° of spin weldings according to claim 1; It is characterized in that being connected with first polarizer (3) between first tail optical fiber (2) and the one 90 ° of spin welding point (4) in the said fiber optic loop; Be connected with the 3rd polarizer (9) between second tail optical fiber (10) in the perhaps said fiber optic loop and the 2 90 ° of spin welding point (8); Be connected with first polarizer (3) between first tail optical fiber (2) in the perhaps said fiber optic loop and the one 90 ° of spin welding point (4), be connected with the 3rd polarizer (9) between second tail optical fiber (10) and the 2 90 ° of spin welding point (8) simultaneously.
3. an inclined to one side mirror based fiber optica resonator cavity of a kind of 2 90 ° of spin weldings according to claim 1; The length sum that it is characterized in that described first tail optical fiber (2), second tail optical fiber (10) equates that with the length sum of the 3rd tail optical fiber (5), the 4th tail optical fiber (7) error is in 1cm; The perhaps equal in length of first tail optical fiber (2), second tail optical fiber (10), the 3rd tail optical fiber (5), the 4th tail optical fiber (7), error is in 1cm.
4. an inclined to one side transmission fiber resonance cavity of 2 90 ° of spin weldings is characterized in that comprising second polarization-maintaining fiber coupler (13), the 3 90 ° of spin welding point (16), the 5th polarizer (17), the 3rd polarization-maintaining fiber coupler (19), the 4 90 ° of spin welding point (22); Second polarization-maintaining fiber coupler (13) comprises the 7th tail optical fiber (14), the tenth tail optical fiber (24), the 11 tail optical fiber (25), the 12 tail optical fiber (26); The 3rd polarization-maintaining fiber coupler (19) comprises the 8th tail optical fiber (18), the 9th tail optical fiber (20), the 13 tail optical fiber (27), the 14 tail optical fiber (28); Form fiber optic loop by second polarization-maintaining fiber coupler (13), the 3 90 ° of spin welding point (16), the 5th polarizer (17), the 3rd polarization-maintaining fiber coupler (19), the 4 90 ° of spin welding point (22).
5. an inclined to one side transmission fiber resonance cavity of a kind of 2 90 ° of spin weldings according to claim 4; It is characterized in that being connected with fourth inclined to one side device (15) between the 7th tail optical fiber (14) and the 3 90 ° of spin welding point (16) in the said fiber optic loop; Be connected with the 6th polarizer (21) between the 9th tail optical fiber (20) in the perhaps said fiber optic loop and the 4 90 ° of spin welding point (22), be connected with the 7th polarizer (23) between the tenth tail optical fiber (24) in the perhaps said fiber optic loop and the 4 90 ° of spin welding point (22).
6. an inclined to one side transmission fiber resonance cavity of a kind of 2 90 ° of spin weldings according to claim 4; It is characterized in that being connected with fourth inclined to one side device (15) between the 7th tail optical fiber (14) and the 3 90 ° of spin welding point (16) in the said fiber optic loop, be connected with the 6th polarizer (21) between the 9th tail optical fiber (20) and the 4 90 ° of spin welding point (22) simultaneously; Perhaps be connected with fourth inclined to one side device (15) between the 7th tail optical fiber (14) and the 3 90 ° of spin welding point (16), be connected with the 7th polarizer (23) between the tenth tail optical fiber (24) and the 4 90 ° of spin welding point (22) simultaneously; Perhaps be connected with the 6th polarizer (21) between the 9th tail optical fiber (20) and the 4 90 ° of spin welding point (22), be connected with the 7th polarizer 23 between the tenth tail optical fiber (24) and the 4 90 ° of spin welding point (22) simultaneously.
7. an inclined to one side transmission fiber resonance cavity of a kind of 2 90 ° of spin weldings according to claim 4; It is characterized in that being connected with fourth inclined to one side device (15) between the 7th tail optical fiber (14) and the 3 90 ° of spin welding point (16) in the said fiber optic loop; Be connected with the 6th polarizer (21) between the 9th tail optical fiber (20) and the 4 90 ° of spin welding point (22), be connected with the 7th polarizer (23) between the tenth tail optical fiber (24) and the 4 90 ° of spin welding point (22).
8. an inclined to one side transmission fiber resonance cavity of a kind of 2 90 ° of spin weldings according to claim 4; The length sum that it is characterized in that described the 7th tail optical fiber (14), the tenth tail optical fiber (24) equates that with the length sum of the 8th tail optical fiber (18), the 9th tail optical fiber (20) error is in 1cm; The perhaps equal in length of the 7th tail optical fiber (14), the tenth tail optical fiber (24), the 8th tail optical fiber (18), the 9th tail optical fiber (20), error is in 1cm.
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| CN201210103665.6A CN102645704B (en) | 2012-04-10 | 2012-04-10 | Secondary 90-degree rotatably-welded polarizing optical fiber resonant cavity |
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| CN201210103665.6A CN102645704B (en) | 2012-04-10 | 2012-04-10 | Secondary 90-degree rotatably-welded polarizing optical fiber resonant cavity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941343A (en) * | 2014-05-06 | 2014-07-23 | 浙江大学 | High polarization extinction ratio of photonic crystal fiber resonant cavity |
| CN104197925A (en) * | 2014-09-16 | 2014-12-10 | 北京航空航天大学 | Photonic bandgap fiber gyroscope based on phase optimization and inhibition method for fiber core refractive index mismatch induced offset errors thereof |
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| WO2011033031A1 (en) * | 2009-09-18 | 2011-03-24 | Ludwig-Maximilians-Universität München | Tunable wavelength light source |
| CN102147506A (en) * | 2011-03-30 | 2011-08-10 | 浙江大学 | Single polarization fiber resonant cavity based on 45-degree slant angle FGB (fiber bragg grating) technology |
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2012
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011033031A1 (en) * | 2009-09-18 | 2011-03-24 | Ludwig-Maximilians-Universität München | Tunable wavelength light source |
| CN102147506A (en) * | 2011-03-30 | 2011-08-10 | 浙江大学 | Single polarization fiber resonant cavity based on 45-degree slant angle FGB (fiber bragg grating) technology |
Non-Patent Citations (3)
| Title |
|---|
| KOICHI TAKIGUCHI,AND KAZUO HOTATE: "Reduction of a Polarization-Fluctuation-Induced Error in an Optical Passive Ring-Resonator Gyro by using a Single-Polarization Optical Fiber", 《JOURNAL OF LIGHTWAVE TECHNOLOGY》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941343A (en) * | 2014-05-06 | 2014-07-23 | 浙江大学 | High polarization extinction ratio of photonic crystal fiber resonant cavity |
| CN104197925A (en) * | 2014-09-16 | 2014-12-10 | 北京航空航天大学 | Photonic bandgap fiber gyroscope based on phase optimization and inhibition method for fiber core refractive index mismatch induced offset errors thereof |
| CN104197925B (en) * | 2014-09-16 | 2017-01-18 | 北京航空航天大学 | Photonic bandgap fiber gyroscope based on phase optimization and inhibition method for fiber core refractive index mismatch induced offset errors thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 |