Title :
Sub-nanosecond passively Q-switched multi-kHz MOPA laser system
Author :
Agnesi, A. ; Dallocchio, P. ; Marco, C. Di ; Pirzio, F. ; Reali, G.
Author_Institution :
Dipt. di Elettron., Univ. di Pavia, Pavia, Italy
Abstract :
In this work we present a sub-nanosecond passively Q-switched multi-kHz laser system in a master oscillator power amplifier (MOPA) configuration. The master oscillator was a Cr4+:YAG passively Q-switched Nd:YAG laser, longitudinally pumped by a pulse-driven 40-W diode laser array. By a proper choice of Cr4+:YAG unsaturated transmission and output coupling we obtained in a 10-mm long, plane-concave resonator up to 66-muJ, 600-ps long pulses. Diffraction-limited and single-longitudinal mode operation was observed up to the maximum repetition frequency of 10 kHz.
Keywords :
Q-switching; chromium; laser beams; laser cavity resonators; laser modes; light diffraction; microchip lasers; neodymium; optical pumping; MOPA laser system; YAG:Cr4+; YAG:Nd; diffraction-limited operation; energy 66 muJ; longitudinally pumped laser; master oscillator power amplifier; microchip laser; plane-concave resonator; pulse-driven diode laser array; single-longitudinal mode operation; size 10 mm; subnanosecond passively Q-switched laser; time 600 ps; Chromium; Laser excitation; Laser modes; Optical pulses; Oscillators; Power amplifiers; Power lasers; Pulse amplifiers; Pump lasers; Semiconductor laser arrays;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192902
