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, Yundong Zhang, Yulong Gai, Ying Wang, Xiaoqi Liu, Kaiyang Wang, 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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