Title :
Enhanced bandwidth-efficiency product of uni-traveling carrier photodiodes using Microring-based structures
Author :
Hosseinifar, M. ; Ahmadi, Vahid ; Abaeiani, Gholamreza
Author_Institution :
Dept. of Elec. Eng., Islamic Azad Univ., Tehran, Iran
Abstract :
This paper presents a new structure for uni-traveling carrier photodiodes (UTC-PDs), namely Microring-based UTC-PDs (MR-UTC-PDs). Photoresponse characteristics of MR-UTC-PDs, which depend on device parameters and coupling conditions, are investigated. Bandwidth of MR-UTC-PD agrees well with the theoretical analysis of narrow-band PDs model. In this report, the effects of MR-UTC-PD photoabsorption layer, on quantum efficiency and bandwidth are analyzed. It is also shown that, this PD can provide bandwidth-efficiency product in the order of several hundreds gigahertz, even in low photoabsorption layers.
Keywords :
photodiodes; bandwidth-efficiency product enhancement; coupling conditions; device parameters; low photoabsorption layers; microring-based UTC-PD; narrow-band photodiodes model; photoresponse characteristics; quantum efficiency; unitraveling carrier photodiodes; Bandwidth; Bandwidthefficiency Product; Microring; Quantum efficiency; Uni-traveling carrier photodiode (UTC-PD);
Conference_Titel :
Electrical Engineering (ICEE), 2011 19th Iranian Conference on
Conference_Location :
Tehran
Print_ISBN :
978-1-4577-0730-8
