Frequency stabilization and linewidth narrowing with modulation transfer spectroscopy

Autor: Kun-Liang Jiang, Xi Zhang, Jin-Qi Wang, Lingxiang He, Hui Liu, Zhuan-Xian Xiong, Baolong Lü
Rok vydání: 2018
Předmět:
Zdroj: Wuhan University Journal of Natural Sciences. 23:51-55
ISSN: 1993-4998
1007-1202
DOI: 10.1007/s11859-018-1293-2
Popis: We report laser frequency stabilization with modulation transfer spectroscopy (MTS) on 85Rb atoms. With both PZT (piezo-electric transducer) slow-loop feedback and current fastloop feedback to the laser head, we get a linewidth narrowing less than 5 kHz simultaneously. Laser injection to a laser diode and frequency beating with another polarization spectroscopy based stabilization setup are also employed to check the narrow linewidth property. With the help of the technique, a linewidth around kHz-level laser is obtained and pave the way for the locking of the lattice laser of ytterbium clock with transfer cavity technique. The setup can be used as a frequency reference for precise frequency control of atomic clock system.
Databáze: OpenAIRE