Fig. 1. Simulation results of frequency stability and the inversion statistics histogram of wind velocity. (a) Adding 10 MHz frequency jitter; (b) System errors in wind velocity measurement due to 10 MHz frequency jitter; (c) Adding 3 MHz frequency jitter; (d) System errors in wind velocity measurement due to 3 MHz frequency jitter; (e) Adding 3 MHz frequency jitter and 10 MHz frequency shift; (f) System errors in wind velocity measurement due to combined effects with 3 MHz frequency jitter and 10 MHz frequency shift

Fig. 2. Schematic diagram of the active cavity control technique with bias feedback

Fig. 3. (a) Optical path of oscillator; (b) Photograph of scanning waveform for Ramp-Fire seed injection with bias feedback

Fig. 4. Waveform of laser pulse. (a) Before seed injection; (b) After seed successful injection

Fig. 5. The results of experimental test. (a) Pphotograph of the interference waveform obtained by beating frequency between pulsed laser and continuous laser; (b) Frequency stability measurement result of the pulsed laser from the oscillator