Abstract
A comprehensive experimental study of the prepumping tech- nology on the passively Q-switched monolithic Cr 41 , Nd:YAG laser is presented. Compared with pulse pumping, the stability of pulse energy and the temporal jitter of laser pulses are improved to a great extent with prepumping modulation. The dependency of output stability performance on the four prepumping parameters is shown. Among them the base current I b plays an important role. The dynamic of the prepumping is given. The experimental results show that prepumping is a promising method to get stabilized Q-switch pulse in miniature Nd:YAG laser. © 2005 Society of Photo-Optical Instrumentation Engineers. (DOI: 10.1117/1.1825445) Subject terms: prepumping modulation; passively Q-switched; diode-pumped solid-state lasers; stability; miniature lasers.
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