Xiao Yu, Mengjie Lv, Xu Zhang, Aiai Jia, Guochao Wang, Lingxiao Zhu, Shuhua Yan, Jun Yang. Research on Frequency Locking of 1560 nm Fiber Laser Based on Rubidium Atomic Modulation Transfer Spectroscopy Technology[J]. Chinese Journal of Lasers, 2022, 49(3): 0301002
- Chinese Journal of Lasers
- Vol. 49, Issue 3, 0301002 (2022)
Fig. 1. Frequency-stabilized laser system based on MTS
Fig. 2. Saturation absorption spectrum signal and corresponding MTS signal when modulation frequency is 6 MHz. (a) Saturated absorption spectroscopy signal; (b) modulation transfer spectroscopy signal
Fig. 3. MTS signal under different detection powers
Fig. 4. Change of peak-to-peak value and slope of MTS signal corresponding to different parameters of modulation and demodulation signal. (a) Peak value and slope of MTS signal at different modulation frequencies; (b) peak values of MTS signal in different demodulation amplitudes
Fig. 5. MTS signal after optimization
Fig. 6. Spectrum of beat note of system and OFC
Fig. 7. Analysis of beat frequency stability. (a) Signal of beat note collected by frequency counter for 1 h; (b) Allan variation of beat note, repeat frequency, hydrogen maser frequency, and envelope frequency
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