摘要
A novel setup of saturated absorption spectroscopy (SAS) is presented.It is based on laser reflections at surfaces of a sample vapor cell.It only needs one cell and one photodiode and is more compact than conventional setups of SAS.Its spectrum is similar to a conventional SAS.The frequency stabilization performance of an external-cavity diode laser with this setup is investigated.A frequency stability of 1.1 × 10^(-11) is achieved at an averaging time of 60s in the Allen variance measurements.
基金
Supported by the National Basic Research Program of China under Grant No 2012CB921602
the National Natural Science Foundation of China under Grant Nos 10874012 and 10974177
the Program of International Science and Technology Cooperation of China under Grant No 2010DFA04690.
