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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 4 — Feb. 1, 2011
  • pp: 492–499

Mode coupling and output beam quality of 100 400 μm core silica fibers

Simon Hurand, Lucam-A. Chauny, Hazem El-Rabii, Sachin Joshi, and Azer P. Yalin  »View Author Affiliations


Applied Optics, Vol. 50, Issue 4, pp. 492-499 (2011)
http://dx.doi.org/10.1364/AO.50.000492


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Abstract

Propagation and mode coupling within relatively short ( 1 10 m ) large core, nominally multimode, fibers are of interest in a number of applications. In this research, we have studied the output beam quality and mode coupling in various fibers with core diameters of 100 400 μm and lengths of 2 m . Output beam quality ( M 2 ) and mode-coupling coefficients ( D ) have been studied for different clad dimensions, numerical apertures, and wavelengths. The mode-coupling coefficients have been determined based on modal power diffusion considerations. The results show that D scales approximately as the inverse square of the clad dimension and inverse square root of the wavelength. Output from a 2 m length fiber of 100 μm core and 660 μm clad fiber is close to single mode ( M 2 = 1.6 ), while output from a 200 μm core and 745 μm clad fiber also has high beam quality.

© 2011 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2310) Fiber optics and optical communications : Fiber optics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 22, 2010
Revised Manuscript: November 16, 2010
Manuscript Accepted: November 19, 2010
Published: January 27, 2011

Citation
Simon Hurand, Lucam-A. Chauny, Hazem El-Rabii, Sachin Joshi, and Azer P. Yalin, "Mode coupling and output beam quality of 100–400 μm core silica fibers," Appl. Opt. 50, 492-499 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-4-492

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