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High repetition rate 300 ps pulses ultraviolet source passively Q:switched microchip laser and a multipass amplifier

Frédéric Druon 1 François Balembois 1 Patrick Georges 1 Alain Brun 1
1 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa
LCFIO - Laboratoire Charles Fabry de l'Institut d'Optique
Abstract : We demonstrate a new kind of picosecond laser source in the UV at a high repetition rate of 245 kHz, using only passive, compact, and simple elements. This system is based on a microchip laser and a very efficient multipass amplif ier, both pumped with recently developed high-brightness laser diodes. The system has been optimized to deliver, at a high repetition rate, subnanosecond pulses at the wavelength 355 nm with an energy per pulse of close to 1 mJ (38-mW average power). This source is to our knowledge the f irst totally passive 300-ps UV laser source at this high repetition rate.
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Frédéric Druon, François Balembois, Patrick Georges, Alain Brun. High repetition rate 300 ps pulses ultraviolet source passively Q:switched microchip laser and a multipass amplifier. Optics Letters, Optical Society of America - OSA Publishing, 1999, 24 (7), pp.499-501. ⟨hal-00761306⟩

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