Spatial Coherence and Thermal Lensing in Broad-Area Semiconductor Lasers

James R. O'Callaghan; John Houlihan; Vincent Voignier; Guan H. Wu; Eamonn O'Neill; John G. McInerney; Guillaume Huyet

doi:10.1109/JQE.2003.820832

Spatial Coherence and Thermal Lensing in Broad-Area Semiconductor Lasers

James R. O'Callaghan
, John Houlihan
, Vincent Voignier
, Guan H. Wu
, Eamonn O'Neill
, John G. McInerney
, Guillaume Huyet

Research output: Contribution to journal › Article › peer-review

Abstract

Injection profiled broad-area edge-emitting semiconductor lasers demonstrate single transverse mode operation and near-diffraction-limited beam output when driven by pulsed pump current. Thermal effects arising from CW operation induce filamentary dynamics, thus degrading the beam. Transition from the stable nonthermal to the unstable CW regime is analyzed experimentally and numerically, and techniques to improve beam quality in the thermal regime, based on feedback or thermal profiling, are proposed.

Original language	English
Pages (from-to)	1-9
Number of pages	9
Journal	IEEE Journal of Quantum Electronics
Volume	40
Issue number	1
DOIs	https://doi.org/10.1109/JQE.2003.820832
Publication status	Published - Jan 2004
Externally published	Yes

Keywords

Gain tailoring
High power
Semiconductor laser
Thermal lensing

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10.1109/JQE.2003.820832

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title = "Spatial Coherence and Thermal Lensing in Broad-Area Semiconductor Lasers",

abstract = "Injection profiled broad-area edge-emitting semiconductor lasers demonstrate single transverse mode operation and near-diffraction-limited beam output when driven by pulsed pump current. Thermal effects arising from CW operation induce filamentary dynamics, thus degrading the beam. Transition from the stable nonthermal to the unstable CW regime is analyzed experimentally and numerically, and techniques to improve beam quality in the thermal regime, based on feedback or thermal profiling, are proposed.",

keywords = "Gain tailoring, High power, Semiconductor laser, Thermal lensing",

author = "O'Callaghan, \{James R.\} and John Houlihan and Vincent Voignier and Wu, \{Guan H.\} and Eamonn O'Neill and McInerney, \{John G.\} and Guillaume Huyet",

year = "2004",

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language = "English",

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AU - O'Callaghan, James R.

AU - Houlihan, John

AU - Voignier, Vincent

AU - Wu, Guan H.

AU - O'Neill, Eamonn

AU - McInerney, John G.

AU - Huyet, Guillaume

PY - 2004/1

Y1 - 2004/1

N2 - Injection profiled broad-area edge-emitting semiconductor lasers demonstrate single transverse mode operation and near-diffraction-limited beam output when driven by pulsed pump current. Thermal effects arising from CW operation induce filamentary dynamics, thus degrading the beam. Transition from the stable nonthermal to the unstable CW regime is analyzed experimentally and numerically, and techniques to improve beam quality in the thermal regime, based on feedback or thermal profiling, are proposed.

AB - Injection profiled broad-area edge-emitting semiconductor lasers demonstrate single transverse mode operation and near-diffraction-limited beam output when driven by pulsed pump current. Thermal effects arising from CW operation induce filamentary dynamics, thus degrading the beam. Transition from the stable nonthermal to the unstable CW regime is analyzed experimentally and numerically, and techniques to improve beam quality in the thermal regime, based on feedback or thermal profiling, are proposed.

KW - Gain tailoring

KW - High power

KW - Semiconductor laser

KW - Thermal lensing

UR - https://www.scopus.com/pages/publications/0742325007

U2 - 10.1109/JQE.2003.820832

DO - 10.1109/JQE.2003.820832

M3 - Article

AN - SCOPUS:0742325007

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EP - 9

JO - IEEE Journal of Quantum Electronics

JF - IEEE Journal of Quantum Electronics

IS - 1

ER -

Spatial Coherence and Thermal Lensing in Broad-Area Semiconductor Lasers

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Keywords

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