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Performance of a CW pumped Nd:YVO4 amplifier with kHz pulses

Performance of a CW pumped Nd:YVO4 amplifier with kHz pulses
Performance of a CW pumped Nd:YVO4 amplifier with kHz pulses
Until recently, simple and reliable high repetition-rate laser sources with nanosecond pulses much shorter than from conventional A-O Q-switch lasers were not available. However over the past 2 years we have developed such lasers based on proprietary fast E-O switching technology, which allows designs delivering pulses and subnanosecond jitter for good synchronisation. The technology provides pulses with multi-kW peak power and repetition-rates to .

Most recently, the performance of these short pulse lasers has been developed further by implementing oscillator/amplifier (master oscillator and power amplifier, MOPA) technology which increases the output to average power. Here we report on a simple model that has been used to predict the performance of the CW pumped Nd:YVO4 amplifier used in the MOPA laser. The model is based on the well-known expressions for the saturated gain applying to laser pulses, but more usually applied to pulse-excited amplifiers. The model is shown to allow a good interpretation of the amplifier behaviour for kHz pulses and to be a useful tool for predicting the performance of the MOPA laser.
solid-state laser, diode pumping, mopa, nanosecond pulses, YVO4 amplifier
0030-3992
375-379
Pearce, Stuart
1d0ee7c5-8f72-4783-a034-9b2f67de3531
Ireland, C.L.M
665f404f-8b62-402c-abe0-8f425be03698
Pearce, Stuart
1d0ee7c5-8f72-4783-a034-9b2f67de3531
Ireland, C.L.M
665f404f-8b62-402c-abe0-8f425be03698

Pearce, Stuart and Ireland, C.L.M (2003) Performance of a CW pumped Nd:YVO4 amplifier with kHz pulses. Optics & Laser Technology, 35 (5), 375-379. (doi:10.1016/S0030-3992(03)00031-8).

Record type: Article

Abstract

Until recently, simple and reliable high repetition-rate laser sources with nanosecond pulses much shorter than from conventional A-O Q-switch lasers were not available. However over the past 2 years we have developed such lasers based on proprietary fast E-O switching technology, which allows designs delivering pulses and subnanosecond jitter for good synchronisation. The technology provides pulses with multi-kW peak power and repetition-rates to .

Most recently, the performance of these short pulse lasers has been developed further by implementing oscillator/amplifier (master oscillator and power amplifier, MOPA) technology which increases the output to average power. Here we report on a simple model that has been used to predict the performance of the CW pumped Nd:YVO4 amplifier used in the MOPA laser. The model is based on the well-known expressions for the saturated gain applying to laser pulses, but more usually applied to pulse-excited amplifiers. The model is shown to allow a good interpretation of the amplifier behaviour for kHz pulses and to be a useful tool for predicting the performance of the MOPA laser.

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More information

Published date: July 2003
Keywords: solid-state laser, diode pumping, mopa, nanosecond pulses, YVO4 amplifier
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 350318
URI: http://eprints.soton.ac.uk/id/eprint/350318
ISSN: 0030-3992
PURE UUID: 26ad9f59-3580-44f1-9130-7af7595a679d

Catalogue record

Date deposited: 25 Mar 2013 16:23
Last modified: 16 Jul 2019 21:39

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