基于现代化战争**和惯导系统对光纤陀螺快启动的强烈需求, 对光纤陀螺启动最慢的核心器件光源超辐射发光二极管(SLD)启动时波长的变化机理进行了研究。主要包括对SLD波长随驱动电流和管芯温度的变化规律进行了理论分析和实验验证, 得出了SLD的平均波长随驱动电流的增大而减小, 变化量约为0.15 nm/mA, 随温度线性增加, 变化量大约为0.5 nm/°C; 根据理论分析驱动电流和管芯温度启动时的变化规律建立了SLD启动时波长的变化模型; 通过实验测试得到的驱动电流和管芯温度启动测试结果推导出了SLD启动波长最大变化量达到18 000 ppm; 最后根据分析结果提出实现陀螺快启动的波长补偿方案。

Based on the quick start-up of fiber optic gyro(FOG) requirement is increasing for the inertial navigation system and the modern weapons, the start-up wavelength drift of superluminescent light emitting diodes(SLD) was studied, which is the slowest start-up core device in FOG. The relationship between SLD output wavelength with drive current and temperature was analyzed and verified both in theory and experiment, it was obtained that the wavelength decreases about 0.15 nm/mA with the increase of drive current and increases about 0.5 nm/°C linearly with the increase of the temperature; The start-up model of SLD wavelength change was established by the changing law of the driving current and the core temperature of SLD after starting-up, and it was inferred that the max wavelength change was 18 000 ppm by the measurement of SLD drive current and temperature; Finally, the wavelength compensation solution was proposed to realize the quick start-up of FOG.