Frequency response modelling and optimization of long wavelength RCE photodiodes
Pereira, J. T.
; Matos, V.M.
International Journal of Applied Electromagnetics and Mechanics Vol. 52, Nº 1, pp. 641 - 648, August, 2016.
ISSN (print): 1383-5416
ISSN (online): 1875-8800
Scimago Journal Ranking: 0,31 (in 2016)
Digital Object Identifier: 10.3233/JAE-162075
Abstract
Resonant Cavity Enhanced (RCE) photodiodes may have advantages over the conventional p-i-n photodiodes due to an enhancement of the quantum efficiency obtained from the constructive interference of the light waves that are made to oscillate in a cavity. In this paper a novel RCE structure, with applications in long wavelength optical communication systems, is proposed and its frequency response is investigated and compared to that obtained for conventional p-i-n devices. An optimization procedure is implemented and the results show that these RCE photodetectors may have bandwidths larger than 80 GHz and a bandwidth-quantum efficiency product above 80%.
