Highly efficient in-band pumped Er:YAG laser with 60 W of output at 1645 nm
Highly efficient in-band pumped Er:YAG laser with 60 W of output at 1645 nm
A high-power Er:YAG laser that is in-band pumped by a high-power cladding-pumped erbium-ytterbium codoped fiber laser operating at 1532 nm is reported. The Er:YAG laser produced 60.3 W of continuous-wave output at 1645.3 nm in a beam with M<1.2 for 32.4 W of incident pump power. The slope efficiency with respect to incident pump power at pump powers of >20 W was ~81%.
In the Q-switched mode of operation, a slightly modified resonator configuration incorporating an electro-optic Q switch produced pulses of ~4 mJ energy and ~100 ns (FWHM) duration, corresponding to a peak power of ~42 kW at a repetition rate of 1 kHz for an incident pump power of 16.8 W. The prospects for further improvement in continuous-wave and Q-switched performance are discussed.
lasers and laser optics, infrared and far-infrared lasers, diode-pumped, solid-state
754-756
Shen, D.Y.
f9a1bd01-6f5c-428a-83fb-3a8b2dadbaad
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
2006
Shen, D.Y.
f9a1bd01-6f5c-428a-83fb-3a8b2dadbaad
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Shen, D.Y., Sahu, J.K. and Clarkson, W.A.
(2006)
Highly efficient in-band pumped Er:YAG laser with 60 W of output at 1645 nm.
Optics Letters, 31 (6), .
(doi:10.1364/OL.31.000754).
Abstract
A high-power Er:YAG laser that is in-band pumped by a high-power cladding-pumped erbium-ytterbium codoped fiber laser operating at 1532 nm is reported. The Er:YAG laser produced 60.3 W of continuous-wave output at 1645.3 nm in a beam with M<1.2 for 32.4 W of incident pump power. The slope efficiency with respect to incident pump power at pump powers of >20 W was ~81%.
In the Q-switched mode of operation, a slightly modified resonator configuration incorporating an electro-optic Q switch produced pulses of ~4 mJ energy and ~100 ns (FWHM) duration, corresponding to a peak power of ~42 kW at a repetition rate of 1 kHz for an incident pump power of 16.8 W. The prospects for further improvement in continuous-wave and Q-switched performance are discussed.
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Published date: 2006
Keywords:
lasers and laser optics, infrared and far-infrared lasers, diode-pumped, solid-state
Identifiers
Local EPrints ID: 38447
URI: http://eprints.soton.ac.uk/id/eprint/38447
ISSN: 0146-9592
PURE UUID: 135bfbb5-6cf5-4ec3-918a-22067d004a53
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Date deposited: 08 Jun 2006
Last modified: 16 Mar 2024 03:20
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Author:
D.Y. Shen
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