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Optical Engineering

All-fiber interferometric technique for estimating the mode effective index of a single-mode fiber
Author(s): Naveen Kumar; M. R. Shenoy; Bishnu P. Pal
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Paper Abstract

An all-fiber interferometric experimental technique to determine the mode effective index neff of a single-mode fiber is proposed. The method involves setting up an unbalanced Mach-Zehnder interferometer (MZI) with the test fiber. By inducing a small change in the differential path length between the two arms of the MZI, a proportional change in the periodicity of its transmission spectrum could be introduced. A precise measurement of this change in periodicity has been used to accurately determine the value of neff of the test fiber.

Paper Details

Date Published: 1 January 2006
PDF: 4 pages
Opt. Eng. 45(1) 015004 doi: 10.1117/1.2150475
Published in: Optical Engineering Volume 45, Issue 1
Show Author Affiliations
Naveen Kumar, Indian Institute of Technology Delhi (India)
M. R. Shenoy, Indian Institute of Technology (India)
Bishnu P. Pal, Indian Institute of Technology Delhi (India)

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