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Optical Engineering

Performance of a resonator-based interferometric fiber-optic gyroscope under the square wave phase bias modulation
Author(s): Xuenan Zhang; Yundong Zhang; Yulong Gai; Ying Wang; Xiaoqi Liu; Kaiyang Wang; Ping Yuan
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Paper Abstract

We propose the modulation period and amplitude of the typical square wave phase bias modulation (SWPBM) applicable to a resonator-based interferometric fiber-optic gyroscope (R-IFOG) and theoretically study the performance of the R-IFOG under SWPBM. Under SWPBM of the proposed modulation period and amplitude, the R-IFOG possesses a performance distinct from that under the hypothetical time-independent phase bias. Also, the sensitivity of the R-IFOG with SWPBM to a slow rotation rate is boosted in comparison to that without phase bias, and the rotation direction can be indicated. Furthermore, the ultrahigh sensitivity can be attained by an R-IFOG of an extremely short fiber length when the R-IFOG with SWPBM consists of a high finesse resonator. Therefore, the SWPBM of the proposed modulation period and amplitude enables highly sensitive and compact integrated closed-loop R-IFOGs.

Paper Details

Date Published: 15 August 2014
PDF: 8 pages
Opt. Eng. 53(10) 102711 doi: 10.1117/1.OE.53.10.102711
Published in: Optical Engineering Volume 53, Issue 10
Show Author Affiliations
Xuenan Zhang, Harbin Institute of Technology (China)
Yundong Zhang, Harbin Institute of Technology (China)
Yulong Gai, Harbin Institute of Technology (China)
Ying Wang, Harbin Institute of Technology (China)
Xiaoqi Liu, Harbin Institute of Technology (China)
Kaiyang Wang, Harbin Institute of Technology (China)
Ping Yuan, Harbin Institute of Technology (China)


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