High-Speed Low-Noise p-i-n InGaAs Photoreceiver at 2-$\mu$ m Wavelength

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.