A simple high-speed high-output voltage digital receiver

We present measurements of a simple photoreceiver capable of generating 2.0 V at 19-Gb/s nonreturn-to-zero (NRZ), and 2.0 and 3.0 V at 24 and 10-Gb/s return-to-zero (RZ), respectively, directly from a p-i-n photodiode. Thus, this photoreceiver generates signal levels compatible with high-speed logic, clock recovery, and/or modulation with low-V/sub /spl pi// LiNbO/sub 3/ modulators without the need for electrical postdetection amplification. The bit-error ratio (BER) is not compromised with this approach since this receiver generates clean eye diagrams with a BER of 10/sup -9/ with -30-dBm input at 10 Gb/s.