论文部分内容阅读
从DFB型激光二极管调谐机理出发,提出了电流-温度调谐特性的解析模型,通过实验测量结果辨识出模型参数,将模型应用于四个不同厂家的DFB型二极管激光器,得到激光器电流-温度调谐的解析模型;将模型预测值与实验测量值比较,相关系数均在0.9999以上.同时,利用CO2气体的多个吸收谱线测量激光的波长,验证了解析模型的预测波长值,与HITRAN谱库中CO2气体吸收波长的误差在3pm内.解析模型能够精确预测激光器在快速调谐过程中的瞬态输出波长,其精度能够满足光谱分析、光学相干测量等实用要求.
Based on the tuning principle of DFB laser diode, an analytical model of the current-temperature tuning characteristic was proposed. The experimental parameters were used to identify the model parameters. The model was applied to four DFB diode lasers from different manufacturers and the laser current-temperature tuned The correlation coefficients are above 0.9999, and the wavelength of the laser is measured by multiple absorption lines of CO2 gas, and the predicted wavelength values of the analytical model are verified, which are in good agreement with those of the HITRAN spectral library The error of CO2 gas absorption wavelength is within 3pm.The analytical model can accurately predict the transient output wavelength of the laser during fast tuning, and its accuracy can meet the practical requirements of spectral analysis and optical coherence measurement.