Ultrafast efficient photodiodes exceeding 100 GHz bandwidth

A family of ultrafast photodetectors based on evanescently coupled photodiodes, is described. The waveguide-integrated detectors are monolithically integrated with bias-Ts, coplanar transmission lines and MMI-couplers, employing semi-insulating optical waveguides on a semi-insulating InP:Fe substrate. The integration scheme is explained and demonstrated by examples of miniaturized ultra-broadband-, traveling wave-, and narrowband photodetectors, operating up to frequencies exceeding 120 GHz. Entnommen aus <a_href="http://www.fiz-technik.de/db/b_tema.htm" target="_blank">TEMA</a>