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Pattern-effect-free all-optical wavelength conversion using a hydrogenated amorphous silicon waveguide with ultra-fast carrier decay

Satoshi Suda, Ken Tanizawa, Youichi Sakakibara, Toshihiro Kamei, Kouichi Nakanishi, Emiko Itoga, Takeshi Ogasawara, Ryohei Takei, Hitoshi Kawashima, Shu Namiki, Masahiko Mori, Toshifumi Hasama, and Hiroshi Ishikawa

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Abstract

Ultra-fast carrier decay, recently discovered in a hydrogenated amorphous silicon waveguide, can be exploited for pattern-effect-free all-optical signal processing based on optical Kerr nonlinearity. In this study, we utilized a 10  Gbit/s RZ-OOK data stream as a pump for degenerate four-wave mixing in a low-loss hydrogenated amorphous silicon waveguide. The propagation loss of the waveguide used was 1.0±0.2  dB/cm at 1550 nm. Unlike crystalline silicon waveguides, no noticeable difference was observed in the BER characteristics between the cases of PRBS 27−1 and 231−1.

©2012 Optical Society of America

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