The performance characteristics of planar InP-based PIN-MODFET front-end photoreceivers realized by molecular beam epitaxial regrowth are discussed. The full width at half maximum (FWHM) of the temporal response to photoexcitation for the full circuit is shown to be 60 ps, which translates to a bandwidth of approximately 6.5 GHz. The measured electrical 3-dB frequency response of the circuit with an effective input load resistance of 33 Ω is 15.0 GHz.
