Title :
Ultrafast nonlinear tuning of photonic coupling resonance in AlGaAs photonic crystal waveguides
Author :
Bristow, A.D. ; Kundys, D.O. ; Wells, J.-P.R. ; Fox, A.M. ; Whittaker, D.M. ; Skolnick, M.S. ; Tahraoui, A. ; Krauss, T.F. ; Roberts, J.S.
Author_Institution :
Dept. of Phys. & Astron., Univ. of Sheffield, UK
Abstract :
Time-resolved and power-dependent pump-probe spectroscopy determines that two-photon absorption induces a strong blue-shift of coupling resonances in a photonic crystal waveguide. Carrier relaxation times are shortened by the surface recombination, showing potential for all-optical switching.
Keywords :
III-V semiconductors; aluminium compounds; carrier relaxation time; gallium arsenide; high-speed optical techniques; nonlinear optics; optical tuning; optical waveguides; photonic crystals; spectral line shift; surface recombination; time resolved spectroscopy; two-photon processes; AlGaAs; AlGaAs photonic crystal waveguides; all-optical switching; blue-shift; carrier relaxation times; photonic coupling resonance; pump-probe spectroscopy; surface recombination; time-resolved spectroscopy; two-photon absorption; ultrafast nonlinear tuning;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
