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Efficient Pulse Stretching of Q-Switched Lasers

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3 Author(s)
Rutten, T.P. ; Dept. of Phys., Univ. of Adelaide, Adelaide, SA ; Veitch, P.J. ; Munch, J.

We present a new and simple technique for efficient stretching of Q-switched laser pulses using a novel ring resonator and a variable Pockels cell Q-switch driven by a simple circuit. The production of 10-mJ flat-topped Q-switched pulses with a duration that can be stretched by a factor of 4.5-1.8 mus without loss of pulse energy is demonstrated. We show that the pulse stretching agrees well with predictions of a numerical model.

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Quantum Electronics, IEEE Journal of  (Volume:44 ,  Issue: 10 )