EXPERIMENTAL AND ANALYTIC STUDIES OF COUPLED MULTIPLE STRIPE DIODE-LASERS

Experimental and analytic studies of coupled multiple stripe (CMS) phase-locked, room-temperature diode lasers are reported. Such devices generate high-power well-collimated beams, which potentially may be electronically scanned in the manner of phased array radar. For the tested devices with ten conducting 3 µm stripe contacts on centers separated by D and coupled by curved waveguide sections, data from four stripe geometries with D ranging from 10 µm to 27.4 µm are compared and overall optimal characteristics occur for D = 10 µm. In that case, threshold current densities are comparable to solid area lasers, differential quantum efficiency is approximately 60 percent, and maximum observed pulsed power per facet is on the order of 1 W. © 1979 IEEE