Special 100 GHz photodetectors for communications

High-bit rate fiber networks, remote antenna driving, and measurement applications need a variety of high-performance photodetectors, exhibiting ultra-high frequencies or bandwidths. Based on waveguide-integrated detectors, three special detector types are presented, which address flexible coupling to subsequent electronics (bias-feeding detector), clock extraction capability (narrowband photodetectors) and free space radiation into the sub-THz range (self-biased pin-antenna chip).