Title :
Analysis and optimization of a dual-absorption RCE photodetector for high-speed applications
Author :
Li, Ding ; Huang, Yongqing ; Duan, Xiaofeng ; Wang, Wei ; Ren, Xiaomin
Author_Institution :
Stake Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Analysis of light field distribution within a dual-absorption RCE p-i-n photodetector has been performed. A formula for the field distribution inside the cavity is derived. This formula is derived from the continuity equations, and employed to evaluate the frequency response of the dual-absorption RCE photodetector. This photodetector has been optimized for high-speed applications. The optimized structure shows a 3dB bandwidth of 20 GB with intrinsic absorption region to be 400nm, as well as effective illumination area and peak quantum efficiency to be 900 μm2 and 92%, respectively.
Keywords :
light absorption; photodetectors; dual-absorption RCE photodetector; light field distribution; p-i-n photodetector; wavelength 400 nm; Abstracts; dual-absorption; high-speed response; photodetectors; resonant-cavity-enhanced;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
