Yun Peter, Tan Bozhong, Deng Wei, Yang Jing, Gu Sihong
Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, People's Republic of China.
Rev Sci Instrum. 2012 Sep;83(9):093111. doi: 10.1063/1.4754629.
With two vertical-cavity surface-emitting lasers working under the master-slave sideband injection-locking configuration, we have realized a quasi-bichromatic laser beam with residual phase noise Δφ(2) < 0.282 rad(2). The two wanted frequency components share more than 96% power of the beam. With the realized beam, we have carried out coherent population trapping (CPT) resonance experiment with (87)Rb in the lin[perpendicular]lin CPT scheme, and recorded CPT resonance signal with contrast of 60%. Such laser system is promising to realize a lin[perpendicular]lin CPT clock with high performance and low power consumption.
利用两个工作在主从边带注入锁定配置下的垂直腔面发射激光器，我们实现了一个残余相位噪声Δφ(2) < 0.282 rad(2)的准双色激光束。两个所需频率分量共享该光束超过96%的功率。利用所实现的光束，我们在lin[垂直]lin CPT方案中对(87)Rb进行了相干布居囚禁（CPT）共振实验，并记录了对比度为60%的CPT共振信号。这种激光系统有望实现高性能、低功耗的lin[垂直]lin CPT时钟。
