Ultrafast all-optical switching by cross-absorption modulation in silicon wire waveguides

T. K. Liang, L. R. Nunes, T. Sakamoto, K. Sasagawa, T. Kawanishi, M. Tsuchiya, G. R.A. Priem, D. Van Thourhout, P. Dumon, R. Baets, H. K. Tsang

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Abstract

We describe the use of two-photon absorption in submicron silicon wire waveguides for all-optical switching by cross-absorption modulation. Optical pulses of 3.2 ps were successfully converted from high power pump to low power continuous-wave signal with a fast recovery time. High speed operation was based on the induced optical absorption from non-degenerate two-photon absorption inside the waveguides.

Original languageEnglish
Pages (from-to)7298-7303
Number of pages6
JournalOptics Express
Volume13
Issue number19
DOIs
Publication statusPublished - 2005 Sep 19

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Liang, T. K., Nunes, L. R., Sakamoto, T., Sasagawa, K., Kawanishi, T., Tsuchiya, M., Priem, G. R. A., Van Thourhout, D., Dumon, P., Baets, R., & Tsang, H. K. (2005). Ultrafast all-optical switching by cross-absorption modulation in silicon wire waveguides. Optics Express, 13(19), 7298-7303. https://doi.org/10.1364/OPEX.13.007298