18 July 2012 Broadband optical fiber tap based on cladding-mode coupling
Chunshu Zhang, Kin-Seng Chiang
Author Affiliations +
Abstract
We propose a broadband light-tapping technique, where an input fiber excites the cladding modes of an output fiber through a gap between the two fibers, and the cladding modes of the output fiber are transferred to a parallel tapping fiber through evanescent-field coupling between the two fibers. The tapping efficiency and the excess loss of the fiber tap depend on the fiber type and the gap distance between the input fiber and the output fiber. We demonstrate the technique with standard single-mode fibers and photonic crystal fibers and discuss its performance. The proposed tap configuration is applicable to practically any fibers and could be further developed into useful light-tapping devices or sensors.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2012/$25.00 © 2012 SPIE
Chunshu Zhang and Kin-Seng Chiang "Broadband optical fiber tap based on cladding-mode coupling," Optical Engineering 51(7), 075001 (18 July 2012). https://doi.org/10.1117/1.OE.51.7.075001
Published: 18 July 2012
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Cited by 1 scholarly publication and 1 patent.
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KEYWORDS
Cladding

Fiber couplers

Optical fibers

Single mode fibers

Structured optical fibers

Sensors

Optical engineering

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