Space charge balance in high-speed high-saturation-current photodetecters

Xiaowei Li; Stephane Demiguel; Ning Li; Joe C. Campbell; David Tulchinsky; Keith J. Williams

doi:10.1117/12.511219

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14 August 2003 Space charge balance in high-speed high-saturation-current photodetectors

Xiaowei Li, Stephane Demiguel, Ning Li, Joe C. Campbell, David Tulchinsky, Keith J. Williams

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Proceedings Volume 5246, Active and Passive Optical Components for WDM Communications III; (2003) https://doi.org/10.1117/12.511219
Event: ITCom 2003, 2003, Orlando, Florida, United States

Abstract

Charge balance in the depletion region of a photodiode can be used to reduce the space charge effect. A partially depleted absorber (PDA) InGaAs/InP photodetecter with space charge balance and transit time balance has been demonstrated. A 1dB large signal compression current of 24mA was achieved at 48GHz for an 8μm × 8μm photodiode. A 100μm-diameter photodiode achieved a maximum saturation current of 199mA at 1GHz.

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Xiaowei Li, Stephane Demiguel, Ning Li, Joe C. Campbell, David Tulchinsky, and Keith J. Williams "Space charge balance in high-speed high-saturation-current photodetectors", Proc. SPIE 5246, Active and Passive Optical Components for WDM Communications III, (14 August 2003); https://doi.org/10.1117/12.511219

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