Title :
Waveguide design for minimum nonlinear effective area and switching energy in AlGaAs at half the bandgap
Author :
Villeneuve, A. ; Aitchison, J.S. ; Vögele, B. ; Tapella, R. ; Kang, J.U. ; Trevino, C. ; Stegeman, G.I.
Author_Institution :
Dept. de Phys., Laval Univ., Que., Canada
fDate :
3/30/1995 12:00:00 AM
Abstract :
The authors report a waveguide design which has been optimised to allow efficient, all-optical switching, in AlGaAs at half the bandgap. The effective area has been reduced to 6 μm2, allowing us to observe a nonlinear phase shift of >5 π. Nonlinear directional couplers, fabricated in the same material, exhibit a critical power of 42 W of energy of 31 pJ
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; high-speed optical techniques; nonlinear optics; optical directional couplers; optical switches; optical waveguides; 31 pJ; 42 W; AlGaAs; all-optical switching; minimum nonlinear effective area; nonlinear directional couplers; nonlinear phase shift; waveguide design;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950389
