Abstract
Based on the modified ramp and fire technique, a novel injection seeding approach
with real-time resonance tracking is successfully demonstrated in a single-frequency
Nd:YAG pulsed laser. Appling a high-frequency sinusoidal modulation voltage to one piezo
actuator and an adjustable DC voltage to another piezo actuator for active feedback,
single-mode laser output with high-frequency stability is obtained, and the effect of
the piezo hysteresis on the frequency stability can be eliminated for a laser diode
pumped Q-switched Nd:YAG laser at a repetition rate of 400 Hz.
© 2016 Chinese Laser Press
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