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Proceedings Paper

Hybrid linear and circular polarization Er-doped fiber ring laser gyroscopes
Author(s): Ke Li; Jue Su; Li Yang; Jing-Ren Qian
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Paper Abstract

A bidirectional single-longitudinal-mode Er-doped fiber ring laser was proposed. Based on it, a fiber laser gyroscope was demonstrated. With circularly polarized lights in the Er-doped fiber, and linearly polarized lights in the rest part of the ring, a reciprocal structure was obtained, and the spatial hole burning effect was suppressed. In the experiments, the lock-in threshold rotation rate was 6 o/s. When the rotation rate was beyond 6 o/s, a beat RF signal of over 30-dB noise was observed and a good linear relation between the beat frequency shift and cavity rotation rate were obtained. Finally, the beat frequency stability was tested for 20 o/s clockwise cavity rotation.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84218M (7 November 2012); doi: 10.1117/12.970250
Show Author Affiliations
Ke Li, Univ. of Science and Technology of China (China)
Jue Su, Univ. of Science and Technology of China (China)
Li Yang, Univ. of Science and Technology of China (China)
Jing-Ren Qian, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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