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Passively Q-switched Nd:GdVO4 laser with GaAs saturable absorber

✍ Scribed by Lei Pan; Xueyuan Hou; Yufei Li; Yuming Sun

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
207 KB
Volume
36
Category
Article
ISSN
0030-3992

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✦ Synopsis

A xenon ash-lamp-pumped, passively Q-switched Nd:GdVO4 laser with GaAs semiconductor saturable absorber is demonstrated. The static laser performance is investigated and the static output is 52 mJ when the pump energy is 9:45 J. The dynamic laser has the highest slope e ciency when the GaAs wafer is both the saturable absorber and output coupler. Pulses with duration of 64 ns and dynamic output of 47:6 mJ are obtained when the pump energy is 9:45 J. The highest dynamic-static ratio is 0.9:1. The coupled rate equations are used to simulate the Q-switched process of laser. The theoretical and experimental results are compared and discussed.

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