Bollig, C., Clarkson, W.A. and Hanna, D.C.
Stable high repetition rate, single-frequency Q-switched operation via feedback suppression of relaxation oscillation
Optics Letters, 20, (12), . (doi:10.1364/OL.20.001383).
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Stable, single-frequency, operation of a Q-switched laser requires initial establishment of a stable prelase, free from relaxation oscillation. Relying on natural decay of oscillation limits repetition rates and hence average power. Using feedback suppression of relaxation oscillation, a Q-switched Nd:YAG laser has operated single-frequency reliably at repetition rates up to 25kHz, with 88% of available cw power extracted.
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