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Optical Engineering

Experiments on resonator micro-optic gyro using external cavity laser diode
Author(s): Ming Lei; Lishuang Feng; Yinzhou Zhi; Huilan Liu; Ni Su
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Paper Abstract

Based on the Sagnac effect, a resonator micro-optic gyro (RMOG) is a novel optical sensor used for measuring rotation velocity. Due to the advantages of small volume, narrow linewidth, and tunable wavelength, an external cavity laser diode (ECLD) is adopted. By analyzing the working mechanism of the ECLD, a new scheme of constant temperature and driving current tuning control is determined. First, a theoretical resonance curve is calculated. Then the laser frequency is successfully tracked in the RMOG. Finally, a bias stability of 1.6  deg/s over 600 s is obtained in the RMOG with a silica waveguide resonator of 12.8 cm.

Paper Details

Date Published: 4 October 2012
PDF: 5 pages
Opt. Eng. 51(10) 104602 doi: 10.1117/1.OE.51.10.104602
Published in: Optical Engineering Volume 51, Issue 10
Show Author Affiliations
Ming Lei, BeiHang Univ. (China)
Lishuang Feng, BeiHang Univ. (China)
Yinzhou Zhi, BeiHang Univ. (China)
Huilan Liu, BeiHang Univ. (China)
Ni Su, BeiHang Univ. (China)

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