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Proceedings Article

Coherent (phased array) and wavelength (spectral) beam combining compared (Invited Paper)

[+] Author Affiliations
T. Y. Fan, A. Sanchez

Massachusetts Institute of Technology (USA)

Proc. SPIE 5709, Fiber Lasers II: Technology, Systems, and Applications, 157 (May 05, 2005); doi:10.1117/12.596455
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From Conference Volume 5709

  • Fiber Lasers II: Technology, Systems, and Applications
  • L. N. Durvasula; Andrew J. W. Brown; Johan Nilsson
  • San Jose, CA | January 22, 2005

abstract

Significant progress has been recently reported on beam combining of arrays of fiber and semiconductor lasers using both coherent (phased array) and wavelength (spectral) techniques. The choice between these two classes of beam-combining techniques has implications for the degree of control required on the array elements and on the optical system that is using the beam-combined array. Coherent beam combining imposes more stringent requirements on array-element control (spectrum, phase, amplitude, and polarization) than wavelength combining. Also, wavelength-combined systems should degrade more gracefully than coherent systems and require fewer changes to optical systems as the number of elements is varied.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

T. Y. Fan and A. Sanchez
"Coherent (phased array) and wavelength (spectral) beam combining compared (Invited Paper)", Proc. SPIE 5709, Fiber Lasers II: Technology, Systems, and Applications, 157 (May 05, 2005); doi:10.1117/12.596455; http://dx.doi.org/10.1117/12.596455


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