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All-fiber 6-mode multiplexers based on fiber mode selective couplers
Author(s) -
Sun Hyok Chang,
Sang Heup Moon,
Haoshuo Chen,
Roland Ryf,
Nicolas K. Fontaine,
Kyung Jun Park,
Kwangjoon Kim,
Joon Ki Lee
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.005734
Subject(s) - multiplexer , optics , materials science , mode volume , polarization maintaining optical fiber , mode scrambler , dispersion shifted fiber , graded index fiber , multi mode optical fiber , wavelength division multiplexing , optical fiber , plastic optical fiber , multiplexing , optoelectronics , fiber optic sensor , wavelength , physics , telecommunications , computer science
All-fiber 6-mode multiplexer composed of two consecutive LP 11 -mode selective couplers (MSC), two LP 21 -MSCs and an LP 02 -MSC is fully characterized by wavelength-swept interferometer technique. The MSCs are fabricated by polished-type fiber couplers coupling LP 01 mode of a single mode fiber into a higher-order mode of a few mode fiber. A pair of the mode multiplexers has minimum mode dependent loss of 4 dB and high mode group selectivity of over 15 dB. Mode division multiplexed transmission enabled by the all-fiber mode multiplexers is demonstrated over fiber spans of 117 km employing an in-line multi-mode optical amplifier. 6 modes of 120 Gb/s dual polarization quadrature phase shift keying signals combined with 30 wavelength channels are successfully transmitted.

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