谐振式光纤陀螺用激光器性能研究

Researsh on Laser Performance of Resonator Fiber Optical Gyroscope

关键词:  谐振式光纤陀螺  半导体激光器  自动化测试平台  性能测试

Key words:  Resonator fiber optical gyro  Semiconductor laser  Automated test platform  Performance test

摘要:

谐振式光纤陀螺是实现小型化的潜在方案，而激光器为谐振式光纤陀螺系统中的关键器件之一。为全面掌握激光器的性能，根据谐振式光纤陀螺对激光器的要求，制定了基于LabVIEW激光器性能自动化测试的软硬件设计方案，得到激光器分段线性化的模型，控制电流在90~120mA之间变化时，光功率、中心波长近似呈变化率为0.18mW/mA、0.11pm/mA的线性变化；控制温度在28.1~32.9℃之间变化时，激光器光功率、中心波长近似呈变化率为0.25dBm/℃、13.31pm/℃的线性变化；此外，光功率变化率为0.17%，中心波长的变化率为0.26×10-6，具备稳定性特性。

Abstract:

Resonator fiber optical gyroscope （RFOG） is a solution for miniaturization，and the laser source is one of the key components in RFOG.According to RFOG performance requirements，a laser performance automated test LabVIEW program was developed，which obtained the subsection linearization model of the laser.When laser control current was change from 90mA to 120mA，power and center wavelength were linear change，and rate of change were 0.18mW/mA and 0.11pm/mA；When laser control temperature was change from 28.1℃ to 32.9℃，power and center wavelength were linear change，and rate of change were 0.25dBm/℃ and 13.31pm/℃；moreover，power and center wavelength were having stability characteristics，whose rate of change were 0.17% and 0.26ppm.