A p-i-n InGaAs photoreceiver with a 3-dB bandwidth of 6 GHz at 2-mum wavelength is presented. The photodiode, having a responsivity of 1.34 A/W and a dark current of 400 nA, is coupled to a transimpedance amplifier to provide a conversion gain of 670 V/W at room temperature.
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Joshi et al. (2008) studied this question.
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