Monolithic Integration of GaAs Photoconductive Detectors and MESFETs with Distributed Coupling to Optical Fibers

In order to realize high speed, crosstalk-free interconnections with high noise immunity for very high speed IC's and systems, GaAs integrated photoconductive detector/FET receivers with a distributed coupling to optical fibers are developed. The distributed coupling enables a quick and simple connection between the integrated receiver and an optical fiber, with relatively low connection loss of -1.4 dB. The integrated receivers show response of 5 ns rise time for a 0.85 µm light pulse, which is limited by the surface effect of the detector.