High-speed photodetectors: Self-biasing and high-power behaviour

High-bit rate fiber networks, photonic mm- and sub-mm wave, remote antenna driving, and measurement applications call for a variety of high-performance photodetectors, exhibiting ultra-high bandwidth, large saturation output power and linear o/e conversion. A monolithically integrated broadband self-powered photodetector without the need of external biasing is presented, comprising beside an optical feeding/splitting network also four waveguide-integrated photodiodes. Especially its high-power behaviour compared to standard externally biased detectors is investigated.