Analysis of optical scattering losses in vertical-external-cavity surface-emitting lasers

Dalia Al Nakdali; Mohammad Khaled Shakfa; Bernd Heinen; Bernardette Kunert; Wolfgang Stolz; Stephan W. Koch; Jörg Hader; Jerome V. Moloney; Arash Rahimi-Iman; Martin Koch

doi:10.1007/s00340-015-6094-0

Analysis of optical scattering losses in vertical-external-cavity surface-emitting lasers

Dalia Al Nakdali, Mohammad Khaled Shakfa, Bernd Heinen, Bernardette Kunert, Wolfgang Stolz, Stephan W. Koch, Jörg Hader, Jerome V. Moloney, Arash Rahimi-Iman, Martin Koch

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Abstract

We report on an analysis of optical surface-scattering losses in vertical-external-cavity surface-emitting lasers. In this study, a laser chip with enhanced surface roughness compared with a high-quality chip is employed in order to allow for investigation of a scattering loss component described in theoretical considerations. A simple model for the extraction of the laser chip’s thermal resistance from experimental input–output characteristics based on thermal roll-over is expanded with respect to a non-thermal component of losses. Thereby, we demonstrate good agreement of experimental data with theoretical modeling when taking into account a power loss component proportional to an optical surface-scattering-loss coefficient in relation to photon out-coupling rates.

Original language	English (US)
Pages (from-to)	41-46
Number of pages	6
Journal	Applied Physics B: Lasers and Optics
Volume	120
Issue number	1
DOIs	https://doi.org/10.1007/s00340-015-6094-0
State	Published - Jul 10 2015

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
General Physics and Astronomy

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title = "Analysis of optical scattering losses in vertical-external-cavity surface-emitting lasers",

abstract = "We report on an analysis of optical surface-scattering losses in vertical-external-cavity surface-emitting lasers. In this study, a laser chip with enhanced surface roughness compared with a high-quality chip is employed in order to allow for investigation of a scattering loss component described in theoretical considerations. A simple model for the extraction of the laser chip{\textquoteright}s thermal resistance from experimental input–output characteristics based on thermal roll-over is expanded with respect to a non-thermal component of losses. Thereby, we demonstrate good agreement of experimental data with theoretical modeling when taking into account a power loss component proportional to an optical surface-scattering-loss coefficient in relation to photon out-coupling rates.",

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AU - Al Nakdali, Dalia

AU - Shakfa, Mohammad Khaled

AU - Heinen, Bernd

AU - Kunert, Bernardette

AU - Stolz, Wolfgang

AU - Koch, Stephan W.

AU - Hader, Jörg

AU - Moloney, Jerome V.

AU - Rahimi-Iman, Arash

AU - Koch, Martin

PY - 2015/7/10

Y1 - 2015/7/10

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AB - We report on an analysis of optical surface-scattering losses in vertical-external-cavity surface-emitting lasers. In this study, a laser chip with enhanced surface roughness compared with a high-quality chip is employed in order to allow for investigation of a scattering loss component described in theoretical considerations. A simple model for the extraction of the laser chip’s thermal resistance from experimental input–output characteristics based on thermal roll-over is expanded with respect to a non-thermal component of losses. Thereby, we demonstrate good agreement of experimental data with theoretical modeling when taking into account a power loss component proportional to an optical surface-scattering-loss coefficient in relation to photon out-coupling rates.

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Analysis of optical scattering losses in vertical-external-cavity surface-emitting lasers

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