Title :
All-Optical Wavelength Conversion using Silicon Photonic Wire Waveguide
Author :
Yamada, K. ; Fukuda, H. ; Watanabe, T. ; Tsuchizawa, T. ; Shinojima, H. ; Tanabe, T. ; Takahashi, M. ; Itabashi, S.
Author_Institution :
NTT Microsyst. Integration Lab., Atsugi
Abstract :
We demonstrate two types of all-optical wavelength conversion devices using nonlinear optical effects in silicon photonic wire waveguides. One is based on cross-absorption modulation using two-photon absorption (TPA). The other is based on four-wave mixing and gives an internal conversion efficiency of about -11 dB. Conversion performances in both devices are degraded by free-carrier absorption (FCA) originating from the TPA. To eliminate FCA, we propose some techniques including lattice-defect implantations to reduce carrier lifetime
Keywords :
carrier lifetime; elemental semiconductors; multiwave mixing; optical communication equipment; optical materials; optical waveguides; optical wavelength conversion; photonic crystals; silicon; two-photon processes; wavelength division multiplexing; WDM; all-optical wavelength conversion devices; carrier lifetime; cross-absorption modulation; four-wave mixing; free-carrier absorption; internal conversion efficiency; lattice-defect implantations; nonlinear optical effects; silicon photonic wire waveguide; two-photon absorption; Absorption; Nonlinear optical devices; Nonlinear optics; Optical devices; Optical mixing; Optical modulation; Optical waveguides; Optical wavelength conversion; Silicon; Wire;
Conference_Titel :
Group IV Photonics, 2006. 3rd IEEE International Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0096-1
DOI :
10.1109/GROUP4.2006.1708225
