VERTICAL-CAVITY LASERS WITH AN INTRACAVITY RESONANT DETECTOR

We demonstrate the first intracavity quantum-well photodetector within a VCSEL for top- and bottom-emitting structures, Minimal spontaneous emission is detected by the internal detector, Dark current is on rite order of picoamperes, limited by our instrument noise Boor, The inter nal defector demonstrates high insensitivity to external ambient light as compared to an external detector, Combining various measurement te chniques, we gain an understanding of such an integration and discuss the various ramifications of the issues surrounding the design, fabric ation, and performance of these integrated VCSEL-detectors, This confi guration facilitates flexible tailoring of the laser efficiency and th e integrated detector responsivity.