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