Properties of a fiber-transmission filter based on Bragg grating and its applications in ring-laser gyros

Wen Ji; Shufen Chen; Lei Fu; Zhengfeng Zou; Fanjun Rao

doi:10.1117/1.OE.51.5.055001

4 May 2012 Properties of a fiber-transmission filter based on Bragg grating and its applications in ring-laser gyros

Wen Ji, Shufen Chen, Lei Fu, Zhengfeng Zou, Fanjun Rao

Author Affiliations +

Optical Engineering, Vol. 51, Issue 5, 055001 (May 2012). https://doi.org/10.1117/1.OE.51.5.055001

Abstract

A fiber transmission filter is proposed and experimentally explored. The bandwidth of the filter is less than 0.1 nm, the loss and back-reflection index is 1.84 dB/18.60 dB for one direction and 1.57 dB/20.78 dB for the other direction, figures which exhibit a great value for ring-laser gyros. By utilizing this filter, a bidirectional laser wave carrying a beating signal can be obtained in a homogeneously broadened gain medium. Finally, a ring-laser gyro with its lock-in area less than 10 deg sec^-1 is obtained and presented.

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Wen Ji, Shufen Chen, Lei Fu, Zhengfeng Zou, and Fanjun Rao "Properties of a fiber-transmission filter based on Bragg grating and its applications in ring-laser gyros," Optical Engineering 51(5), 055001 (4 May 2012). https://doi.org/10.1117/1.OE.51.5.055001

Published: 4 May 2012

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