Continuous-wave diode end-pumped Nd: YAG and Nd:GdVO4 lasers passively Q-switched by Cr4+: YAG saturable absorbers

Cristi Petre; Nicoleta Vasile; Nicolaie Pavel; Traian Dascalu

doi:10.1117/12.802022

29 April 2008 Continuous-wave diode end-pumped Nd: YAG and Nd:GdVO₄ lasers passively Q-switched by Cr⁴⁺: YAG saturable absorbers

Cristi Petre, Nicoleta Vasile, Nicolaie Pavel, Traian Dascalu

Author Affiliations +

Proceedings Volume 7007, INDLAS 2007: Industrial Laser Applications; 70070P (2008) https://doi.org/10.1117/12.802022
Event: INDLAS 2007: Industrial Laser Applications, 2007, Bran, Romania

Abstract

We have developed all-solid-state continuous-wave diode end-pumped Nd:YAG and Nd:GdVO₄ lasers that were passively Q-switched by Cr⁴⁺:YAG saturable absorbers. The Nd:YAG laser delivered laser pulses with 138 mJ maximum energy and duration of 42 ns, with 3.3 W average power at 1.06 mm for 13.3 W of pump power at 807 nm. An average power at 1.06 mm of 1.4 W was obtained from Nd:GdVO₄ under pumping with 7.2 W power at 808 nm. The pulse energy and the pulse duration were 41 mJ and 40 ns, respectively, which correspond to 1 kW pulse peak power. The laser pulses characteristics are discussed for Cr4+:YAG saturable absorbers with different values of the initial transmission.

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Cristi Petre, Nicoleta Vasile, Nicolaie Pavel, and Traian Dascalu "Continuous-wave diode end-pumped Nd: YAG and Nd:GdVO₄ lasers passively Q-switched by Cr⁴⁺: YAG saturable absorbers", Proc. SPIE 7007, INDLAS 2007: Industrial Laser Applications, 70070P (29 April 2008); https://doi.org/10.1117/12.802022

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KEYWORDS

Nd:YAG lasers

Q switched lasers

Crystals

Semiconductor lasers

Pulsed laser operation

Continuous wave operation

Laser crystals

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