摘要
通过半导体激光器的注入锁定 ,产生了频率可在铯原子D2 线附近 (85 2 .35 6nm)连续调谐约 1GHz以上、压缩度约为 0 .8dB的振幅压缩光 ;将其应用在铯饱和蒸气样品的频率调制光谱的演示测量中 ,信噪比较散粒噪声极限提高了约 0 .7dB。
The frequency tunable amplitude squeezed light of the continuous tunable range over 1 GHz around the D 2 line of Cesium (Cs) at 852.356 nm and the squeezing degree about 0.8 dB was experimentally generated with an injection locked laser diode. The amplitude squeezed light was applied in the frequency modulation (FM) spectroscopy measurement of Cs saturated vapor, the signal to noise ratio (SNR) of which was improved about 0.7 dB relative to the shot noise limit (SNL).
出处
《光学学报》
EI
CAS
CSCD
北大核心
2001年第5期525-529,共5页
Acta Optica Sinica
基金
国家自然科学基金! (197740 39
6 98370 10 )
山西省青年科学基金! (9710 12 )资助项目
