Title :
Ultra wide electrical bandwidth GaAs/AlGaAs electrooptic modulators
Author :
Dagli, Nadir ; Spickermann, R. ; Sakamoto, Shinji ; Peters, Martin
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
A high speed GaAs/AlGaAs traveling wave Mach-Zehnder electrooptic modulator has been fabricated. The device uses a novel slow wave electrode design to achieve phase velocity matching and has a measured electrical bandwidth greater than 40 GHz. An improved electrode design has been characterized and is currently being integrated into a modulator to increase the bandwidth further.<>
Keywords :
III-V semiconductors; Mach-Zehnder interferometers; aluminium compounds; electro-optical modulation; gallium arsenide; integrated optoelectronics; light interferometers; optical fibre communication; optical fibres; slow wave structures; GaAs-AlGaAs; electrical bandwidth; electrode design; electrooptic modulators; phase velocity matching; slow wave electrode design; traveling wave Mach-Zehnder modulator; Bandwidth; Dielectrics and electrical insulation; Electrodes; Electrooptic modulators; Gallium arsenide; Gold; Optical losses; Optical modulation; Schottky barriers; Wet etching;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406054
