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根据目前多数高功率半导体激光器模块只适合工作在准连续(QCW)状态下的特点,提出了利用光谱方法测量半导体激光器温升进而计算得到热阻的计算方法。该方法具有简单、直观、快捷的特点,同时避开了常规计算热阻方法要求半导体激光器工作在连续状态的局限性。其中在不同占空比、同一工作电流下得到的热阻值一致性较好,更接近文献给出的数值,具有实际应用价值。
According to the characteristics that most high-power semiconductor laser modules are only suitable for working in quasi-continuous (QCW) state, a method of calculating the temperature rise of the semiconductor laser by using the spectroscopic method and calculating the thermal resistance is proposed. The method is simple, intuitive and fast, and avoids the limitations of the traditional calculation of the thermal resistance method that requires the semiconductor laser to work in a continuous state. Among them, the consistency of the thermal resistance obtained under the same duty cycle and the same working current is better, which is closer to the numerical values given in the literature and has practical application value.