15 August 2014 Performance of a resonator-based interferometric fiber-optic gyroscope under the square wave phase bias modulation
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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.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Xuenan Zhang, Xuenan Zhang, Yundong Zhang, Yundong Zhang, Yulong Gai, Yulong Gai, Ying Wang, Ying Wang, Xiaoqi Liu, Xiaoqi Liu, Kaiyang Wang, Kaiyang Wang, Ping Yuan, Ping Yuan, } "Performance of a resonator-based interferometric fiber-optic gyroscope under the square wave phase bias modulation," Optical Engineering 53(10), 102711 (15 August 2014). https://doi.org/10.1117/1.OE.53.10.102711 . Submission:
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