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@article{Liang:2023:10.1364/OE.505385,
author = {Liang, M and Minassian, A and Damzen, MJ},
doi = {10.1364/OE.505385},
journal = {Optics Express},
pages = {42428--42438},
title = {High-energy acousto-optic Q-switched alexandrite laser with wavelength tunable fundamental and UV second harmonic generation},
url = {http://dx.doi.org/10.1364/OE.505385},
volume = {31},
year = {2023}
}

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TY  - JOUR
AB  - We investigate high-energy mJ-class diode-pumped acousto-optic (AO) Q-switched alexandrite lasers with broad tunability at both the fundamental near-IR wavelength range and second harmonic generation (SHG) in the UV wavelength range. An AO Q-switched alexandrite laser with continuous-wave diode-pumping has been operated at up to 10 kHz and producing pulse energy of 700 µJ at repetition rate of 1 kHz. With pulsed double-pass diode-pumping, we demonstrate higher pulse energy of 2.6 mJ. With wavelength tuning, this laser system demonstrated broad fundamental tuning range from 719 to 787nm with diffraction-limited beam quality (M2 = 1.05). By external cavity second harmonic generation in a Type-I LBO crystal, pulse energy of 0.66 mJ is generated at 375nm and with UV tuning range from 361 to 391nm. To our knowledge, this is the first demonstration of AO Q-switched alexandrite laser with broad wavelength tuning in the near-IR and UV wavelength ranges and shows its excellent potential as a pulsed source for future applications.
AU  - Liang,M
AU  - Minassian,A
AU  - Damzen,MJ
DO  - 10.1364/OE.505385
EP  - 42438
PY  - 2023///
SN  - 1094-4087
SP  - 42428
TI  - High-energy acousto-optic Q-switched alexandrite laser with wavelength tunable fundamental and UV second harmonic generation
T2  - Optics Express
UR  - http://dx.doi.org/10.1364/OE.505385
UR  - https://www.ncbi.nlm.nih.gov/pubmed/38087617
UR  - https://doi.org/10.1364/OE.505385
UR  - http://hdl.handle.net/10044/1/108848
VL  - 31
ER  -

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