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, Jorg Hader, Jerome V Moloney, Arash Rahimi-Iman, Martin Koch

Research output: Contribution to journalArticle

2 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)41-46
Number of pages6
JournalApplied Physics B: Lasers and Optics
Volume120
Issue number1
DOIs
StatePublished - Apr 2 2015

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surface emitting lasers
cavities
chips
scattering
power loss
thermal resistance
lasers
surface roughness
photons
coefficients

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Analysis of optical scattering losses in vertical-external-cavity surface-emitting lasers. / Al Nakdali, Dalia; Shakfa, Mohammad Khaled; Heinen, Bernd; Kunert, Bernardette; Stolz, Wolfgang; Koch, Stephan W; Hader, Jorg; Moloney, Jerome V; Rahimi-Iman, Arash; Koch, Martin.

In: Applied Physics B: Lasers and Optics, Vol. 120, No. 1, 02.04.2015, p. 41-46.

Research output: Contribution to journalArticle

Al Nakdali, Dalia ; Shakfa, Mohammad Khaled ; Heinen, Bernd ; Kunert, Bernardette ; Stolz, Wolfgang ; Koch, Stephan W ; Hader, Jorg ; Moloney, Jerome V ; Rahimi-Iman, Arash ; Koch, Martin. / Analysis of optical scattering losses in vertical-external-cavity surface-emitting lasers. In: Applied Physics B: Lasers and Optics. 2015 ; Vol. 120, No. 1. pp. 41-46.
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