Title :
High optical power electroabsorption waveguide modulator
Author :
Johansson, L.A. ; Akulova, Y.A. ; Fish, G.A. ; Coldren, L.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
fDate :
2/20/2003 12:00:00 AM
Abstract :
A sampled grating distributed Bragg reflector-laser integrated with a waveguide Franz-Keldysh modulator is investigated for high optical power applications. The EAM modulation efficiency is demonstrated to asymptotically approach a limit determined by the internal differential photodetector efficiency. Linear photocurrent and 1 dB small signal AC compression point both exceed 70 mA, indicating high saturation power.
Keywords :
diffraction gratings; distributed Bragg reflector lasers; electro-optical modulation; electroabsorption; optical communication equipment; photodetectors; EAM modulation efficiency; distributed Bragg reflector-laser; electroabsorption waveguide modulator; internal differential photodetector efficiency; linear photocurrent; optical power; sampled grating; saturation power; small signal AC compression point; waveguide Franz-Keldysh modulator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030264
