Grating-feedback frequency-tuning extended-cavity laser diode
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摘要: 为了实现半导体激光器在795nm处的单模输出,采用输出端面镀有增透膜的半导体激光二极管作光源,用光栅反馈的方法构成扩展腔,研制了波长为795nm、频率可调谐半导体激光器,并对该激光器进行了实验测试,可知其频率连续调谐范围约7.6GHz,激光线宽约为2.5MHz,运行在110mA时输出功率达43mW。结果表明,该半导体激光器可用于激光与铷原子相互作用中的量子相干效应的研究。Abstract: In order to obtain the single-mode output of a diode laser in 795nm,a system of anti-reflection-coated frequency-tuning diode laser with grating-feedback extended-cavity was presented.Experiments were executed in the laser.It works in 795nm with a mode-hop-free continuous scanning range of roughly 7.6GHz.The result shows,the output linewidth is about 2.5MHz and the output power can achieve more than 43mW with a 110mA injection current.The diode laser can be very useful in the research of atomic coherent effect when laser interacts with Rb atoms.
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