WAVE-GUIDE DESIGN FOR MINIMUM NONLINEAR EFFECTIVE AREA AND SWITCHING ENERGY IN ALGAAS AT HALF THE BANDGAP

Authors
VILLENEUVE A AITCHISON JS VOGELE B TAPELLA R KANG JU TREVINO C STEGEMAN GI
Citation
A. Villeneuve et al., WAVE-GUIDE DESIGN FOR MINIMUM NONLINEAR EFFECTIVE AREA AND SWITCHING ENERGY IN ALGAAS AT HALF THE BANDGAP, Electronics Letters, 31(7), 1995, pp. 549-551
Citations number
14
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
31
Issue
7
Year of publication
1995
Pages
549 - 551
Database
ISI
SICI code
0013-5194(1995)31:7<549:WDFMNE>2.0.ZU;2-T
Abstract
The authors report a waveguide design which has been optimised to allo w efficient, all-optical switching, in AlGaAs at half the bandgap. The effective area has been reduced to 6 mu m(2), allowing us to observe a nonlinear phase shift of > 5 pi. Nonlinear directional couplers, fab ricated in the same material, exhibit a critical power of 42 W of ener gy of 31 pJ.