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- Title
Properties of a fiber-transmission filter based on Bragg grating and its applications in ring-laser gyros.
- Authors
Wen Ji; Shufen Chen; Lei Fu; Zhengfeng Zou; Fanjun Rao
- 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.
- Subjects
FIBER optics; OPTICAL fiber detectors; OPTICAL correlators; GYROSCOPES; BACKSCATTERING; OPTICAL engineering
- Publication
Optical Engineering, 2012, Vol 51, Issue 5, p1
- ISSN
0091-3286
- Publication type
Article
- DOI
10.1117/1.OE.51.5.055001