Diode-pumped Alexandrite lasers in Q-switched and cavity-dumped Q-switched operation | Zendy

G. M. Thomas | Zendy; A. Minassian | Zendy; Xia Sheng | Zendy; M. J. Damzen | Zendy

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Diode-pumped Alexandrite lasers in Q-switched and cavity-dumped Q-switched operation

Author(s) -

G. M. Thomas,

A. Minassian,

Xia Sheng,

M. J. Damzen

Publication year - 2016

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.24.027212

Subject(s) - optics , materials science , laser , diode , q switching , pulse duration , optoelectronics , pulse repetition frequency , injection seeder , pulse (music) , pulse width modulation , continuous wave , wavelength , power (physics) , semiconductor laser theory , physics , telecommunications , radar , quantum mechanics , detector , computer science

We present the first study of Q-switched Alexandrite lasers under continuous-wave diode-pumping with operation up to 10 kHz repetition rates in TEM 00 , with spatial quality M 2 1.15. With a pulsed-diode dual-end-pumped design, pulse energy is scaled to a record level of 3 mJ. We also demonstrate, for the first time, cavity-dumped Q-switching of diode-pumped Alexandrite lasers under continuous-wave and pulsed diode-pumping, up to 10 kHz. Pulse energy of 510 μJ is demonstrated with 3 ns pulse duration and 170 kW peak power, in TEM 00 with M 2 < 1.2. Second harmonic generation of the cavity-dumped Q-switched pulses was used to generate UV wavelength 379 nm with conversion efficiency of 47%.

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