9 July 2001 Photoresponse characteristics of uni-traveling-carrier photodiodes
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Proceedings Volume 4283, Physics and Simulation of Optoelectronic Devices IX; (2001) https://doi.org/10.1117/12.432597
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States
Uni-traveling-carrier photodiode (UTC-PD) is a newly developed high-speed photodiode for generating high output current. The high saturation current is realized by its operation mode in which only electrons are used as active carriers. The bandwidth of a UTC-PD increases with increasing photocurrent level, which results from the fact that electron transport changes from diffusive to drift/diffusive motion due to the self-induced field in the absorption layer. In this report, photoresponse characteristics of InP/InGaAs UTC-PDs, which depend on device parameters and operation conditions, are discussed. Theoretical analysis for calculating 3-dB-down bandwidth as a function of operation current is also presented. The charge-control model for photodiodes, used in this study, allows us to predict small-signal bandwidth by numerical calculation.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tadao Ishibashi, Tadao Ishibashi, Tomofumi Furuta, Tomofumi Furuta, Hiroshi Fushimi, Hiroshi Fushimi, Hiroshi Ito, Hiroshi Ito, "Photoresponse characteristics of uni-traveling-carrier photodiodes", Proc. SPIE 4283, Physics and Simulation of Optoelectronic Devices IX, (9 July 2001); doi: 10.1117/12.432597; https://doi.org/10.1117/12.432597

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