中文摘要：

设计并实现了一种通过原子对激光的吸收光谱研究被动型相干布居囚禁（CPT）原子钟所使用的垂直腔面发射激光器（VCSEL）特性的实验方法。通过切换输入VCSEL的微波功率,实验记录原子对单色和调频多色激光的吸收谱,借助光谱分析研究了VCSEL激光管自身温度变化速度、微波功率变化造成VCSEL的温度变化及VCSEL输出波长随温度的变化等特性,以及通过所实现的光谱直接测量所用VCSEL制备CPT态的效率。该方法为CPT原子钟所用的VCSEL提供了一个有用的测试、研究平台,对于原子钟的研制和VCSEL研究具有实际价值。

英文摘要：

An experimental scheme is proposed and realized,with which the characteristic of a vertical-cavity surface-emitting laser（VCSEL）,a key component of a passive coherent population trapping（CPT） atomic clock,is studied through atomic absorption spectra toward laser.By switching on and off the input microwave for modulating VCSEL,atomic absorption spectra toward monochromatic and multi-chromatic laser are alternatively recorded.The characteristics of VCSEL,including temperature response rate,temperature change along microwave power,wavelength response to its temperature,and the CPT state preparing efficiency are studied with the spectra measurement.This scheme provides a convenient experimental method to measure and study VCSEL,and a useful tool for developing CPT atomic clocks.