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Wavelength conversion using fiber cross-phase modulation driven by two pump waves

: Watanabe, S.; Kato, T.; Tanimura, T.; Schmidt-Langhorst, C.; Elschner, R.; Sackey, I.; Schubert, C.; Hoshida, T.

Fulltext ()

Optics Express 27 (2019), No.12, pp.16767-16780
ISSN: 1094-4087
Journal Article, Electronic Publication
Fraunhofer HHI ()

Wavelength conversion using all-optical phase modulation in a fiber driven by two pump waves is investigated. The operation features are analyzed using an all-optical phase modulation model with two parallel-/cross-polarized pump waves to generate a phase-preserving copy of the optical signal at an exact frequency up-/down-shifted by the two-pump detuning. The conversion efficiency is experimentally verified using a 300-m highly-nonlinear fiber. The results agree well with a theoretical prediction. The conversion bandwidth over 4 THz is achieved and error-free wavelength conversion for a 32-GBd polarization-division multiplexed 16QAM signal is demonstrated. The technique’s applicability to a large-capacity wavelength-division multiplexed signals is also discussed.