We have investigated fiber optic gyroscopes that use phase-modulation signal processing for use in automobiles. These gyroscopes use an integrated optical gyrochip and low-cost elliptical-core polarization-maintaining optical fiber. Fiber-to-fiber insertion loss deviation is less than $POM 0.4 dB at a wavelength of 0.83 $mu@m over a temperature range of $MIN@30 to $PLU@80$DGR@C, while the core dimensions of pigtailed fiber are as small as 4 $MUL 1 $mu@m$+2$/. A gyroscope was developed for navigation systems and on board testing is now being performed. A gyroscope for chassis control systems is also being developed.
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机译：我们研究了使用相位调制信号处理以用于汽车的光纤陀螺仪。这些陀螺仪使用集成的光学陀螺和低成本椭圆芯偏振 - 保持光纤。光纤到光纤插入损耗偏差小于$ 0.4 dB，波长为0.83 $ MU @ M的温度范围，在$ MIN @ 30到$ PLU @ 80 $ DGR @ C，而尾纤光纤的核心尺寸小于4 $ mul 1 $ mu @ m $ + 2 $ /。为导航系统开发陀螺仪，并正在进行船上测试。还开发了一种用于底盘控制系统的陀螺仪。
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