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All-optical data frequency multiplexing on single-wavelength carrier light by sequentially provided cross-phase modulation in fiber

: Watanabe, S.; Kato, T.; Okabe, R.; Elschner, R.; Ludwig, R.; Schubert, C.


IEEE Journal of Selected Topics in Quantum Electronics 18 (2012), Nr.2, S.577-584
ISSN: 1077-260X
Fraunhofer HHI ()

A novel configuration for an all-optical bus-topology data-multiplexing system is proposed in which multichannel signals are sequentially multiplexed by frequency-division multiplexing (FDM) on a single-wavelength optical carrier by cross-phase modulation (XPM) in nonlinear fibers (NLFs) with subcarrier-modulated optical data signals. By using highly NLFs for XPM generators and providing amplitude-modulated subcarrier-multiplexed optical signals generated with directly modulated lasers or optical beat signals at multiple local connection points, we successfully demonstrate sequential all-optical FDM of data signals on a single-wavelength optical carrier followed by error-free data transmission through a standard fiber.