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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 17 — Aug. 20, 2007
  • pp: 10699–10704

Diffractive optical elements for high gain lasers with arbitrary output beam profiles

Adam J. Caley, Martin J. Thomson, Jinsong Liu, Andrew J. Waddie, and Mohammad R. Taghizadeh  »View Author Affiliations


Optics Express, Vol. 15, Issue 17, pp. 10699-10704 (2007)
http://dx.doi.org/10.1364/OE.15.010699


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Abstract

We introduce a previously unreported laser cavity configuration, using a diffractive optical element (DOE) in place of the output coupler. Such a configuration allows the DOE to work both in reflection, as a mode shaping element, and in transmission as a beam shaper. Employing dual wavelength DOE optimization techniques and phase delays greater than 2π, allows the two functions to be designed independently. Thus, an arbitrary output beam profile can be combined with a mode shape which maximizes energy extraction from the gain medium. Devices are designed and their performance modeled for a 1m cavity with 5mm diameter mirrors and a wavelength of 632.8nm. An element with 32 quantization levels and a maximum phase delay of 8π in transmission produces high quality results.

© 2007 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3410) Lasers and laser optics : Laser resonators

ToC Category:
Diffraction and Gratings

History
Original Manuscript: June 1, 2007
Revised Manuscript: July 9, 2007
Manuscript Accepted: August 3, 2007
Published: August 8, 2007

Citation
Adam J. Caley, Martin J. Thomson, Jinsong Liu, Andrew J. Waddie, and Mohammad R. Taghizadeh, "Diffractive optical elements for high gain lasers with arbitrary output beam profiles," Opt. Express 15, 10699-10704 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-17-10699


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References

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