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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 34, Iss. 6 — Mar. 15, 2009
  • pp: 716–718

Amplification of a radially polarized laser beam using an Yb-doped double-clad fiber

Tatsuya Chubachi, Yuichi Kozawa, and Shunichi Sato  »View Author Affiliations


Optics Letters, Vol. 34, Issue 6, pp. 716-718 (2009)
http://dx.doi.org/10.1364/OL.34.000716


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Abstract

Amplification of a radially polarized laser beam is demonstrated by use of an Yb-doped double-clad fiber whose core cutoff wavelength for the LP 11 mode is larger than the wavelength of the input beam. The beam power is amplified while maintaining the intensity and polarization distributions. The amplified spontaneous emission becomes negligible with increasing input power. The measured slope efficiency is 48%, and the output power is 1.1 W .

© 2009 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(140.3510) Lasers and laser optics : Lasers, fiber
(260.5430) Physical optics : Polarization

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 18, 2008
Revised Manuscript: January 21, 2009
Manuscript Accepted: January 26, 2009
Published: March 3, 2009

Citation
Tatsuya Chubachi, Yuichi Kozawa, and Shunichi Sato, "Amplification of a radially polarized laser beam using an Yb-doped double-clad fiber," Opt. Lett. 34, 716-718 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-6-716


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