ELECTRO-ABSORPTIVE OPTICAL MODULATOR MODULE WITH MONOLITHIC INTEGRATED PHOTO DETECTOR

摘要

in a single integrated electro-absorption type optical modulator module on a semiconductor substrate according to the present invention is the oscillation light was to have a lattice , and a distributed feedback laser for outputting an oscillation light through the first and second end , EA modulator for modulating the first light output through the first stage of the distributed feedback lasers and , and a light detector for detecting a second light output through the second end being formed to be opposed to the second stage of the distributed feedback laser on the semiconductor substrate , positioned between the distributed feedback laser and the photo-detector whereby the second light intensity attenuation sikimyeo , the distributed feedback laser includes a first inner window and for electrically insulating the photodetector .