Title :
Ultrafast nonlinear refraction in an active MQW waveguide
Author :
Fisher, M.A. ; Kennedy, G.T. ; Sibbett, W.
Author_Institution :
BT Labs., Ipswich, UK
fDate :
6/24/1993 12:00:00 AM
Abstract :
The first assessment of a fast and relatively strong refractive optical nonlinearity in a MQW active waveguide operated at its material transparency current is presented. A large nonlinear figure of merit together with large phase shifts are demonstrated, indicating considerable promise for all-optical switching at speeds approaching 1 Tbit/s.
Keywords :
gradient index optics; high-speed optical techniques; nonlinear optics; optical switches; optical waveguides; refractive index; semiconductor quantum wells; 1 Tbit/s; GRINSCH BH waveguide; GaInAs-GaInAsP; active MQW waveguide; all-optical switching; material transparency current; nonlinear figure of merit; phase shifts; refractive optical nonlinearity; ultrafast nonlinear refraction;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930792
