Chinese Optics Letters, 2011, 9 (6): 060601, Published Online: May. 6, 2011
Radiation-induced effects in polarization-maintaining optical fibers for interferometric gyroscope Download: 946次
保偏光纤 辐射致衰减效应 光纤陀螺 060.2270 Fiber characterization 350.6090 Space optics 060.2800 Gyroscopes 350.5610 Radiation
Abstract
Radiation-induced attenuation (RIA) in four types of polarization-maintaining optical fibers for interferometric fiberoptic gyroscope (IFOG) at 1310 nm is measured. The measurements are conducted during and after steady-state γ-ray irradiation using a 60Co source in order to observe significantly different RIA behavior and recovery kinetics. Mechanisms involving dopants and manufacturing process are introduced to analyze the RIA discrepancy as well as to guide the choice and hardening of optical fibers during the design of IFOG. Medium-accuracy IFOG using Ge–F-codoped fiber and pure silica core fiber can survive in the space radiation environment.
Xueqin Wang, Chunxi Zhang, Jing Jin, Ningfang Song. Radiation-induced effects in polarization-maintaining optical fibers for interferometric gyroscope[J]. Chinese Optics Letters, 2011, 9(6): 060601.