中国激光, 2010, 37 (1): 162, 网络出版: 2010-01-16
温度对布里渊光纤陀螺的影响
Temperature Effects in a Brillouin Fiber-Optic Gyroscope
光纤光学 光纤陀螺 温度效应 模式跳变 受激布里渊散射 拍频 fiber optics fiber-optic gyroscope thermal effects mode hopping stimulated Brillouin scattering beat frequency
摘要
分析了温度对布里渊光纤陀螺(BFOG)的影响。根据温度对布里渊频移和环行腔谐振频率的影响,分析了顺时针(CW)和逆时针(CCW)方向受激布里渊激光器输出频率与温度的关系。分析了温度对萨格纳克(Sagnac)系数的影响。对于通常的BFOG(腔长4 m),温度变化大于一定值(近10 ℃)后才会对BFOG的拍频产生影响。对战术级的应用来说,温度对Sagnac系数的影响可以忽略,但是对于惯性级的应用,温度对Sagnac系数的影响不可忽略。
Abstract
Temperature effects in a Brillouin fiber-optic gyroscope (BFOG) have been analyzed in this paper. The relationship between the frequency of clockwise (CW) and counter-clockwise (CCW) Brillouin lasers and temperature have been analyzed based on temperature effects in Brillouin frequency shift and resonator frequency of fiber ring laser. Temperature effects in coefficient of Sagnac have been analyzed. For a conventional BFOG (the length fiber resonator is 4 m),the variation of temperature will effect on the beat frequency of BFOG only when the variation of temperature is larger than a value (about 10 ℃). For tactical grade applications,the temperature effects on coefficient of Sagnac can be neglected,but for inertial grade applications,the temperature effects on coefficient of Sagnac cannot be neglected.
万生鹏, 何兴道. 温度对布里渊光纤陀螺的影响[J]. 中国激光, 2010, 37(1): 162. Wan Shengpeng, He Xingdao. Temperature Effects in a Brillouin Fiber-Optic Gyroscope[J]. Chinese Journal of Lasers, 2010, 37(1): 162.