End-pumped passively Q-switched Yb:YAG double-clad waveguide laser
End-pumped passively Q-switched Yb:YAG double-clad waveguide laser
We present a diode- pumped, double-clad Yb:YAG waveguide laser that maintains an integrated section of Cr4+:YAG saturable absorber for passive Q switching. Using two 4W polarization-coupled, broad-stripe diode-pumped lasers, we obtained 30µJ pulses of 16ns duration at repetition rates of as much as 77 kHz. The slope efficiency was ~50% with respect to absorbed pump power, with a maximum output average power of 2.3 W and a peak power of ~18 kW. The output beam was single lobed, with M2 values as great as 1.5 x 1.3 . We also demonstrate a passively Q-switched Nd:YAG waveguide laser of similar design, operating at 1064 µm and 946 nm.
lasers and laser optics, lasers, diode-pumped, q-switched, waveguides, planar
2161-2163
Mackenzie, J.I.
1d82c826-fdbf-425b-ac04-be43ccf12008
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
2002
Mackenzie, J.I.
1d82c826-fdbf-425b-ac04-be43ccf12008
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Mackenzie, J.I. and Shepherd, D.P.
(2002)
End-pumped passively Q-switched Yb:YAG double-clad waveguide laser.
Optics Letters, 27 (24), .
(doi:10.1364/OL.27.002161).
Abstract
We present a diode- pumped, double-clad Yb:YAG waveguide laser that maintains an integrated section of Cr4+:YAG saturable absorber for passive Q switching. Using two 4W polarization-coupled, broad-stripe diode-pumped lasers, we obtained 30µJ pulses of 16ns duration at repetition rates of as much as 77 kHz. The slope efficiency was ~50% with respect to absorbed pump power, with a maximum output average power of 2.3 W and a peak power of ~18 kW. The output beam was single lobed, with M2 values as great as 1.5 x 1.3 . We also demonstrate a passively Q-switched Nd:YAG waveguide laser of similar design, operating at 1064 µm and 946 nm.
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2459
- Author's Original
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Published date: 2002
Keywords:
lasers and laser optics, lasers, diode-pumped, q-switched, waveguides, planar
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 13754
URI: http://eprints.soton.ac.uk/id/eprint/13754
ISSN: 0146-9592
PURE UUID: cf4b8dba-a55a-49af-8c7a-c680cbeb28c2
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Date deposited: 31 Dec 2004
Last modified: 16 Mar 2024 03:17
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Author:
D.P. Shepherd
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