Effects of transverse mode profile on slope efficiency and relaxation oscillations in a longitudinally pumped laser
Effects of transverse mode profile on slope efficiency and relaxation oscillations in a longitudinally pumped laser
Measurement of relaxation oscillation frequency can provide a convenient means for measurement of laser resonator losses. Expressions are derived which take account of the effect of non-uniform pump and laser beam profile on relaxation oscillation frequency and slope efficiency for a longitudinally-pumped four-level laser. Significant departures from plane-wave calculations are found. It is also shown that by combining a measurement of slope efficiency and relaxation oscillation frequency, the loss can be deduced without detailed knowledge of the pump beam profile. Experimental results supporting these calculations are described.
483-498
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
April 1989
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Clarkson, W.A. and Hanna, D.C.
(1989)
Effects of transverse mode profile on slope efficiency and relaxation oscillations in a longitudinally pumped laser.
Journal of Modern Optics, 36 (4), .
(doi:10.1080/09500348914550561).
Abstract
Measurement of relaxation oscillation frequency can provide a convenient means for measurement of laser resonator losses. Expressions are derived which take account of the effect of non-uniform pump and laser beam profile on relaxation oscillation frequency and slope efficiency for a longitudinally-pumped four-level laser. Significant departures from plane-wave calculations are found. It is also shown that by combining a measurement of slope efficiency and relaxation oscillation frequency, the loss can be deduced without detailed knowledge of the pump beam profile. Experimental results supporting these calculations are described.
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Published date: April 1989
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Local EPrints ID: 78676
URI: http://eprints.soton.ac.uk/id/eprint/78676
ISSN: 0950-0340
PURE UUID: 1858738d-81da-46e2-97a8-33464d774799
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:20
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Author:
D.C. Hanna
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