Pulsed RF measurement is necessary to characterize APDs because of limited heat dissipation power of the chip. Using cw optical signal the measurement is restricted within 0.1 mW of optical power.

A low-power hybrid-integrated 40-Gb/s optical receiver is reported. The receiver consists of a broadband photodiode fabricated in a 0.18-μm Ge-on-SOI process packaged with an mm-wave electronic chip ...