Modal analysis of path length sensitivity in superposition architectures for coherent laser beam combining

Mercedeh Khajavikhan, James R. Leger

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

An analytical model is developed to describe the modal behavior of a class of coherent beam combining resonators based on laser beam superposition. This model is used to explore the interplay between modal discrimination and tolerance to gain element path length changes. Under certain conditions, the sensitivity to the random phase fluctuations of the individual gain elements can be substantially reduced.

Original languageEnglish (US)
Article number4811105
Pages (from-to)281-290
Number of pages10
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume15
Issue number2
DOIs
StatePublished - Mar 1 2009

Keywords

  • Coherent beam combining
  • Fiber lasers
  • Phase fluctuations

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