Development of PMF for high precision fiber optic gyroscope by PCVD based process

Abstract

In this paper, we describe a development of a polarization-maintaining fiber by PCVD based process which can be used in the high precision gyroscope and present its measured properties. This kind of fiber is designed as the reduced cladding PMF. The fabrication of the polarization-maintaining fiber is based on the PANDA PMF PCVD based process. Thus, with the reduced cladding, the fiber has better bending properties. Fabrication by the PCVD process, the fiber also has good longitudinal uniformity and a low-loss about 0.374dB/km @ 1310nm, 2.0mm beatlength and -30dB/km crosstalk. It's environmental performance of crosstalk is also good for fiber optic gyroscope. These better properties make this fiber can be used in the high precision gyroscope system.