講演名 | 2008-11-20 Reduction of Backscattering Induced Noise by Carrier Suppression in Waveguide-type Optical Passive Ring Resonator Gyroscope , |
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抄録(和) | |
抄録(英) | For applications requiring smaller, lighter and robust gyros, waveguide-type optical passive ring resonator gyroscope (OPRG), is a promising candidate. The drift level of OPRG, which is seriously affected by the backscattering induced noise, is limited by the carrier suppression level in phase modulation spectroscopy technique. In this paper, we examine the influence of the carrier suppression level on the gyro performance experimentally. In order to achieve high carrier suppression directly by controlling the peak-to-peak voltage of the sine wave applied to the phase modulator, high precision calibration of the phase modulator is necessary. Suppressed carrier level higher than 50dB has been obtained by controlling the voltage with the accuracy of 1mV. Proportional integrator (PI) is adopted to eliminate the residual error for the lock-in frequency. A bias stability of 3.1゜/s is firstly demonstrated in a silica waveguide ring resonator with the ring length of 7.9cm. |
キーワード(和) | |
キーワード(英) | Resonator optic gyro / backscattering induced noise / carrier suppression / silica waveguide ring resonator |
資料番号 | OFT2008-54 |
発行日 |
研究会情報 | |
研究会 | OFT |
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開催期間 | 2008/11/13(から1日開催) |
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講演論文情報詳細 | |
申込み研究会 | Optical Fiber Technology (OFT) |
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本文の言語 | ENG |
タイトル(和) | |
サブタイトル(和) | |
タイトル(英) | Reduction of Backscattering Induced Noise by Carrier Suppression in Waveguide-type Optical Passive Ring Resonator Gyroscope |
サブタイトル(和) | |
キーワード(1)(和/英) | / Resonator optic gyro |
第 1 著者 氏名(和/英) | / Huilian MA |
第 1 著者 所属(和/英) | Dept. of Information Science and Electronic Engineering, Zhejiang University |
発表年月日 | 2008-11-20 |
資料番号 | OFT2008-54 |
巻番号(vol) | vol.108 |
号番号(no) | 310 |
ページ範囲 | pp.- |
ページ数 | 4 |
発行日 |