14 August 2003 Space charge balance in high-speed high-saturation-current photodetectors
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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, Xiaowei Li, Stephane Demiguel, Stephane Demiguel, Ning Li, Ning Li, Joe C. Campbell, Joe C. Campbell, David Tulchinsky, David Tulchinsky, Keith J. Williams, 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); doi: 10.1117/12.511219; https://doi.org/10.1117/12.511219


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