Abstract

We have demonstrated, for the first time, we believe, surface-emitting distributed feedback (SEDFB) diode lasers which do not rely on facet reflections for any of the feedback.1 The devices had the structure illustrated in Fig. 1. A second-order (240-nm) gold grating at the p-contact surface diffracts guided mode radiation into the surface normal through first-order diffraction, white second-order diffraction provides the feedback needed for oscillation.

© 1988 Optical Society of America

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