Numerical simulation and optimization of Q-switched 2 μm Tm,Ho:YLF laser | Zendy

Oleg A. Louchev | Zendy; Yoshiharu Urata | Zendy; Satoshi Wada | Zendy

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Numerical simulation and optimization of Q-switched 2 μm Tm,Ho:YLF laser

Author(s) -

Oleg A. Louchev,

Yoshiharu Urata,

Satoshi Wada

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.003940

Subject(s) - optics , laser , materials science , pulse (music) , q switching , pulse width modulation , pulse duration , physics , power (physics) , detector , quantum mechanics

Numerical simulation suggests that for obtaining a giant (G) pulse from a 2.06 mum solid state Tm,Ho:YLF laser by the active Q-switching technique, the optimal Ho concentration will be higher than that used in normal operation. In simulations of 500 ns G-pulse generation maximal efficiency occurred at 6 % Tm and 1.0 % Ho, in contrast with 0.4% Ho found to be optimal for the normal pulse generation. Maximal energy output from Tm,Ho:YLF lasers can be achieved by incorporating a delay of about 0.7 ms between 0.5 ms 780 nm LD pulsed pumping and the start of Q-switched G-pulse operation.

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