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应用于高精度光纤陀螺的细径熊猫型光纤属于应力致偏型保偏光纤(PMF)。对工作波长为1 550nm的细径PMF的特性与研制过程进行了详细的阐述。所制备出的拍长为3.2 mm、消光比为26 dB(1 km)、低衰减、高强度且温度特性稳定的实用型细径熊猫型PMF为开拓国内高精度光纤陀螺及相关的光纤传感器件的工程化应用奠定了重要的基础。
The small diameter panda fiber used for high-precision fiber optic gyroscope belongs to stress-induced polarization maintaining fiber (PMF). The characteristics and development process of PMF with working wavelength of 1 550 nm are described in detail. The pared-down panda PMF has a length of 3.2 mm, an extinction ratio of 26 dB (1 km), a low attenuation, high strength and stable temperature characteristics. To develop a domestic high-precision fiber optic gyro and related optical fiber sensing devices The engineering application has laid an important foundation.