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

Mercedeh Khajavikhan; James R. Leger

doi:10.1109/JSTQE.2008.2012353

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

Mercedeh Khajavikhan, James R. Leger

Electrical and Computer Engineering

Research output: Contribution to journal › Article

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 language	English (US)
Article number	4811105
Pages (from-to)	281-290
Number of pages	10
Journal	IEEE Journal on Selected Topics in Quantum Electronics
Volume	15
Issue number	2
DOIs	https://doi.org/10.1109/JSTQE.2008.2012353
State	Published - Mar 1 2009

Keywords

Coherent beam combining
Fiber lasers
Phase fluctuations

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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.",

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KW - Phase fluctuations

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