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

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Title: Diode-pumped Alexandrite lasers in Q-switched and cavity-dumped Q-switched operation
Authors: Thomas, GM
Minassian, A
Sheng, X
Damzen, MJ
Item Type: Journal Article
Abstract: We present the first study of Q-switched Alexandrite lasers under continuous-wave diode-pumping with operation up to 10 kHz repetition rates in TEM00, with spatial quality M2 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 TEM00 with M2 < 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 %.
Issue Date: 28-Nov-2016
Date of Acceptance: 10-Sep-2016
URI: http://hdl.handle.net/10044/1/40580
DOI: 10.1364/OE.24.027212
ISSN: 1094-4087
Publisher: Optical Society of America
Start Page: 27212
End Page: 27224
Journal / Book Title: Optics Express
Volume: 24
Issue: 24
Copyright Statement: © 2016 The Authors. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License . Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Sponsor/Funder: European Space Agency / Estec
European Space Agency / Estec
Funder's Grant Number: 4000115840/15/NL/RA/zk
RFQ 3-13611/12/NL/PA
Keywords: Science & Technology
Physical Sciences
0205 Optical Physics
0906 Electrical and Electronic Engineering
1005 Communications Technologies
Publication Status: Published
Online Publication Date: 2016-11-15
Appears in Collections:Physics
Faculty of Natural Sciences