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Optical Engineering

Properties of a fiber-transmission filter based on Bragg grating and its applications in ring-laser gyros
Author(s): Wen Ji; Shufen Chen; Lei Fu; Zhengfeng Zou; Fanjun Rao
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Paper 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.

Paper Details

Date Published: 4 May 2012
PDF: 6 pages
Opt. Eng. 51(5) 055001 doi: 10.1117/1.OE.51.5.055001
Published in: Optical Engineering Volume 51, Issue 5
Show Author Affiliations
Wen Ji, Beijing Institute of Technology (China)
Shufen Chen, Beijing Institute of Technology (China)
Lei Fu, Beijing Institute of Technology (China)
Zhengfeng Zou, Beijing Institute of Technology (China)
Fanjun Rao, Beijing Institute of Technology (China)

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