Title :
Influence of carrier diffusion on the response of a resonant-cavity enhanced detector
Author :
Djuric, Z. ; Krstajic, P. ; Smiljanic, M. ; Randjelovic, D.
Author_Institution :
Inst. of Microelectron. Technol. & Single Crystals, Belgrade Univ., Serbia
fDate :
2/1/2002 12:00:00 AM
Abstract :
We have investigated the effects of carrier diffusion on the impulse response of a resonant-cavity enhanced photodetector using our analytic expression for a short-circuit current. Our theoretical results indicate that diffusion introduces a significant tail in the temporal response of photodetectors. We show that the influence of diffusion becomes significant as the absorption width decreases. A discrepancy in bandwidth as high as 35% between our results and previous theoretical predictions is observed
Keywords :
absorption coefficients; diffusion; optical receivers; optical resonators; p-i-n photodiodes; photodetectors; transient response; absorption width; bandwidth; carrier diffusion; diffusion; impulse response; photodetectors; resonant-cavity enhanced detector; resonant-cavity enhanced photodetector; short-circuit current; temporal response; Absorption; Bandwidth; Detectors; Mirrors; Optical films; PIN photodiodes; Photodetectors; Reflectivity; Resonance; Tail;
Journal_Title :
Quantum Electronics, IEEE Journal of
