Beam shaping in laser resonators and coherent laser arrays: An overview and current state of the art

James R Leger, M. Khajavikhan, B. Tiffany

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Coherent beam shaping can be performed inside laser resonators by filtering the amplitude or the phase of the circulating wave. Along with providing a designer-shaped output, these methods can improve laser performance by suppressing higher-order modes and extracting maximum gain. Under certain conditions, phase filtering is shown to improve modal discrimination by separating modes into bound (low-loss) modes and unbound (high-loss) modes. Mode shapes in resonator arrays are shown to depend on the architecture of the array. In some cases, these architectures can be designed to improve modal discrimination or increase the tolerance to resonator path-length errors.

Original languageEnglish (US)
Title of host publicationLaser Beam Shaping X
DOIs
StatePublished - Nov 18 2009
EventLaser Beam Shaping X - San Diego, CA, United States
Duration: Aug 3 2009Aug 4 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7430
ISSN (Print)0277-786X

Other

OtherLaser Beam Shaping X
CountryUnited States
CitySan Diego, CA
Period8/3/098/4/09

Keywords

  • Coherent laser beam addition
  • Laser arrays
  • Laser beam shaping
  • Laser modes
  • Spatial filtering

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