Qing Yan, Meng Yuan, Tiantian He, Ning Chen, Jingjing Liu, Wenhui Xin, Jun Wang, Dengxin Hua. Pulse Laser Frequency Locking Method Based on Molecular Absorption[J]. Acta Optica Sinica, 2019, 39(10): 1028005
- Acta Optica Sinica
- Vol. 39, Issue 10, 1028005 (2019)
Fig. 1. Doppler line graph
Fig. 2. 1109 line of iodine absorption
Fig. 3. Diagram of pulse laser dynamic frequency locking system
Fig. 4. Schematic of the measurement setup of the iodine cell absorption line
Fig. 5. Temperature control effect of iodine cell. (a) Temperature stability; (b) end face of iodine cell
Fig. 6. Laser energy signal. (a) Pulsed laser energy signal; (b) level signal after peak holding
Fig. 7. Absorption spectra of 1109 line for iodine cell at different temperatures. (a) Experimental results; (b) simulation results
Fig. 8. 1109 line of iodine molecule absorption at 328 K
Fig. 9. Frequency drift of laser
Fig. 10. Frequency drift after 500-points moving smoothing in 25 min
Fig. 11. Relationship between wind measurement error of lidar and frequency drift of laser
Fig. 12. Effect of laser frequency drift on half-height full-width measurement of Rayleigh backscattering spectra
Fig. 13. Relationship between temperature measurement error of lidar and laser frequency drift
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