Presentation 2000/6/23
Analysis and Countermeasure for Polarization Fluctuation Induced Noise in Resonator Fiber Optic Gyro Considering Polarization Depended Loss
Hiroyuki Narita, Kenya Suzuki, Kazuo Hotate,
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Abstract(in English) Polarization fluctuation induced noise is a problem in Resonator Fiber Optic Gyro. The noise is enhanced when polarization depended loss exists in the resonator. As a countermeasure, a PM fiber resonator with 90° twisted splice at two points and with two couplers is analyzed. By adjusting the length difference between two fiber poritions, shape of the eigenstate of polarization(ESOP)becomes linear and coincides with polarization axis of the PM fiber. The resonant dips of the ESOPs locate with equal space with each other. Then, only one ESOP can be selectively excited. Consequently, the polarization fluctuation induced noise can be reduced even in the resonator with polarization dependent loss. By adapting appropriate parameters of the PM fiber and coil housing way, this resonator may realize a stable characteristic.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Fiber Optic Gyro / Polarization Depended Loss / Eigenstate of Polarization / Polarization Fluctuation Induced Noise
Paper # MW2000-25,OPE2000-25
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Committee MW
Conference Date 2000/6/23(1days)
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Language JPN
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Title (in English) Analysis and Countermeasure for Polarization Fluctuation Induced Noise in Resonator Fiber Optic Gyro Considering Polarization Depended Loss
Sub Title (in English)
Keyword(1) Fiber Optic Gyro
Keyword(2) Polarization Depended Loss
Keyword(3) Eigenstate of Polarization
Keyword(4) Polarization Fluctuation Induced Noise
1st Author's Name Hiroyuki Narita
1st Author's Affiliation School of Engineering, The Univ.of Tokyo()
2nd Author's Name Kenya Suzuki
2nd Author's Affiliation School of Engineering, The Univ.of Tokyo
3rd Author's Name Kazuo Hotate
3rd Author's Affiliation School of Frontier Sciences, The Univ.of Tokyo
Date 2000/6/23
Paper # MW2000-25,OPE2000-25
Volume (vol) vol.100
Number (no) 158
Page pp.pp.-
#Pages 6
Date of Issue