The design of temperature control system for semi conductor laser diode was studied. A high accuracy temperature measuring circuit and a driver circuit of thermo electric cooler were introduced. The result shows that it has fast dynamic response and strong anti-interference ability. The temperature can reach the stability of ±0.2℃ while LD working in range from -40-55℃.%研究了半导体激光器温度控制系统的设计,包括高精度温度测量电路和大电流半导体制冷片(TEC)驱动电路以及制冷片保护电路.实验表明系统抗干扰能力强,动态响应速度快,控温效果好,在-40-55℃宽范围内半导体泵浦头温度控制精度可达±0.2℃.
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