Abstract
In a semiconductor optical amplifier (SOA) with copropagating optical pump pulses, the application of a nonlinear phase shift to optical signals provides the driving force for all-optical interferometric switching. We study, both analytically and experimentally, the dependencies of the nonlinear phase shift on the driving frequency (42–168 GHz) and on the SOA parameters. We have found that the nonlinear phase shift decreases with the driving frequency but that this decrease is only linear, i.e., We have also found that the nonlinear phase shift in the SOA linearly increases with the injection current i.e., even in this ultrahigh-frequency range.
© 2002 Optical Society of America
Full Article | PDF ArticleMore Like This
Yoshiyasu Ueno, Shigeru Nakamura, and Kazuhito Tajima
Opt. Lett. 23(23) 1846-1848 (1998)
Mads L. Nielsen and Jesper Mørk
J. Opt. Soc. Am. B 21(9) 1606-1619 (2004)
Yoshinori Watanabe, Noritsugu Yamamoto, Kazuhiro Komori, Hitoshi Nakamura, Yoshimasa Sugimoto, Yu Tanaka, Naoki Ikeda, Kiyoshi Asakawa, and Kuon Inoue
J. Opt. Soc. Am. B 21(10) 1833-1838 (2004)