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End-pumped passively Q-switched Yb:YAG double-clad waveguide laser

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
0146-9592
2161-2163
Mackenzie, J.I.
1d82c826-fdbf-425b-ac04-be43ccf12008
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
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), 2161-2163. (doi:10.1364/OL.27.002161).

Record type: Article

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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More information

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: https://eprints.soton.ac.uk/id/eprint/13754
ISSN: 0146-9592
PURE UUID: cf4b8dba-a55a-49af-8c7a-c680cbeb28c2
ORCID for J.I. Mackenzie: ORCID iD orcid.org/0000-0002-3355-6051
ORCID for D.P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184

Catalogue record

Date deposited: 31 Dec 2004
Last modified: 20 Jul 2019 01:25

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Contributors

Author: J.I. Mackenzie ORCID iD
Author: D.P. Shepherd ORCID iD

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