, Volume 76, Issue 4, pp 351-354

High-peak-power diode-pumped passively Q-switched Nd:YVO4 laser

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We report on a passively Q-switched diode-pumped Nd:YVO4 laser polarized along the a axis (corresponding to the smallest value of emission cross section at 1064 nm), generating 157-μJ pulses with 6.0-ns time duration (>20 kW peak power) and 3.6 W of average power at 1064 nm with good beam quality (M2<1.4). The selection of the polarization was performed by a novel technique relying on the birefringence of the laser crystal and on the misalignment sensitivity of the resonator.

Received: 30 September 2002 / Revised version: 22 November 2002 / Published online: 19 March 2003
ID="*"Corresponding author. Fax: +39-382/422583, E-mail: agnesi@ele.unipv.it