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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 12 — Apr. 20, 2009
  • pp: 2249–2254

Long-period grating and its application in laser beam shaping in the 1.0 μm wavelength region

Waleed Mohammed and Xijia Gu  »View Author Affiliations

Applied Optics, Vol. 48, Issue 12, pp. 2249-2254 (2009)

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Laser beam shaping is an important subject for industrial and medical applications since different applications may require different laser intensity distributions. We present an all-fiber beam-shaping device that could transform a Gaussian-shaped laser beam into an intensity uniform beam in the 1.0 μm wavelength region using a long-period grating (LPG). The device can be used to shape the beam of a Yb-doped high-power fiber laser. The mode structure of the LPGs made of HI1060 fiber is analyzed. The design parameters that affect the beam shaping are discussed, and the results of the beam shaping using two cladding modes, LP 03 and LP 04 , are presented.

© 2009 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2340) Fiber optics and optical communications : Fiber optics components
(140.3300) Lasers and laser optics : Laser beam shaping
(230.2285) Optical devices : Fiber devices and optical amplifiers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 21, 2009
Revised Manuscript: March 21, 2009
Manuscript Accepted: March 23, 2009
Published: April 14, 2009

Virtual Issues
Vol. 4, Iss. 6 Virtual Journal for Biomedical Optics

Waleed Mohammed and Xijia Gu, "Long-period grating and its application in laser beam shaping in the 1.0 μm wavelength region," Appl. Opt. 48, 2249-2254 (2009)

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