Analysis and optimization of coupling to external cavities in feedback experiments with vertical-cavity surface-emitting lasers

Jentsch, K.F. and Sondermann, M. and Ackemann, T. (2008) Analysis and optimization of coupling to external cavities in feedback experiments with vertical-cavity surface-emitting lasers. Optics Communications, 281 (6). pp. 1396-1400. ISSN 0030-4018 (http://dx.doi.org/10.1016/j.optcom.2007.11.066)

Abstract

The feedback strength is a crucial parameter for feedback experiments using semiconductor lasers. In this article, the coupling efficiency of the field of vertical-cavity surface-emitting lasers (VCSELs) to external cavities containing one collimating lens has been analyzed in detail using ABCD-matrix methods. It is found that for a given set of parameters there are two distinct, experimentally realizable positions of the collimating lens which allow for optimal coupling, if the cavity length is sufficiently small. The predictions are verified in experiments using single-transverse-mode VCSELs. The obtained coupling efficiencies exceed 70%.

ORCID iDs

Ackemann, T. ORCID: https://orcid.org/0000-0003-2727-7395

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• Item metadata

  Item type:	Article
  ID code:	19769
  Dates:	Date Event 15 March 2008 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Strathprints Administrator
  Date deposited:	02 Jun 2010 17:53
  Last modified:	11 Nov 2024 09:20
  URI:	https://strathprints.strath.ac.uk/id/eprint/19769