Title :
Proposed cross grating single-mode DFB laser
Author_Institution :
David Sarnoff Res. Center, Princeton, NJ, USA
fDate :
7/1/1992 12:00:00 AM
Abstract :
A new two-dimensional laser using a cross grating has been proposed. The calculations of the threshold gain and coupling constant show a relation between these parameters similar to the one-dimensional case, and also a uniform mode giving rise to radiation normal to the surface is shown to exist for a two-dimensional cross grating. These results suggest single-mode surface emission lasers with very little beam divergence
Keywords :
diffraction gratings; distributed feedback lasers; laser modes; semiconductor junction lasers; beam divergence; calculations; coupling constant; cross grating single mode distributed feedback laser; radiation; semiconductor lasers; single-mode surface emission lasers; threshold gain; two-dimensional cross grating; two-dimensional laser; uniform mode; Bragg gratings; Distributed feedback devices; Laser feedback; Laser modes; Optical design; Optical surface waves; Phased arrays; Semiconductor laser arrays; Surface emitting lasers; Tellurium;
Journal_Title :
Quantum Electronics, IEEE Journal of
