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Applied Optics

Applied Optics


  • Vol. 19, Iss. 14 — Jul. 15, 1980
  • pp: 2426–2434

Measurements of mode conversion coefficients in graded-index fibers

Kazuo Nagano and Shojiro Kawakami  »View Author Affiliations

Applied Optics, Vol. 19, Issue 14, pp. 2426-2434 (1980)

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A new method of measuring mode conversion coefficients in multimode fibers is proposed. The principle is based on the phenomenon that modal power propagating along a fiber undergoes a gradual change due to mode coupling and mode-dependent losses. Application of the principle has made it possible to measure mode conversion coefficients of a graded-index fiber that, to the authors' belief, had not been reported before. In the experiment, it was found that the mode conversion coefficient is roughly independent of the mode order. A resolution limit of the mode analyzing technique is also discussed for graded-index fibers.

© 1980 Optical Society of America

Original Manuscript: November 21, 1979
Published: July 15, 1980

Kazuo Nagano and Shojiro Kawakami, "Measurements of mode conversion coefficients in graded-index fibers," Appl. Opt. 19, 2426-2434 (1980)

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