High Speed Modulation, Beam Steering and Control of High Power Diode Lasers

Abstract

Public reporting burden for this collection of Information Is estimated to average I hour per response. Including th< maintaining the data needed, and completing and reviewing the collection of Information. Send comments regi information, Including suggestions for reducing this burden to Washington Headquarters Services. Directorate for Ir Arlington VA 22202-4302 and to the Office of Management and Budget. Paperwork Reduction Project (0704-0188), Washington. DC 20503. This contract funded a major effort in bringing to maturity, a first-principles theory of semiconductor lasers and amplifiers based on a fully microscopic description of the light semiconductor material coupling. Signficant breakthroughs were made at the microscopic physics level by explicitly Including all of the relevant excited bands in the active region of the device and obtaining quantitative agreement with gain/Index and linewldth enhancement spectra measured for a variety of Quantum Well structures at the Air Force Research Laboratory, Albuquerque, NM. The full nonlinear pde model for high power wide aperture semiconductor lasers was reformulated theoretically so as to take advantage of speed and excellent parallel scaling of our ONYS2 in-house supercomputer. AGENCY USE ONLY (Resulting from this Is the first Interactive simulator for designing new generations of high brightness semiconductor devices. We were able to begin building a fully interactive platform-independent optoelectronic simulator which should have a major impact on designing sophisticated telecoms systems. Funding also allows major Inroads in explaining the novel creation of an optically turbulent atmospheric light guide. This contract funded a major effort in bringing to maturity, a first-principles theory of semiconductor lasers and amplifiers based on a fully microscopic description of the light semiconductor material coupling. Significant breakthroughs were made at the microscopic physics level by explicitly including all of the relevant excited bands in the active region of the device and obtaining quantitative agreement with gain/index and linewidth enhancement spectra measured for a variety of Quantum Well structures at the Air Force Research Laboratory, Albuquerque, New Mexico. The füll nonlinear pde model for high power wide aperture semiconductor lasers was reformulated theoretically so as to take advantage of speed and excellent parallel scaling of our 0NYX2 in-house supercomputer.Resulting from this is the first interactive simulator for designing new generations of high brightness semiconductor devices. We were able to begin building a fully interactive platform-independent optoelectronic simulator which should have a major impact on designing sophisticated telecoms systems. Contract funding also allowed us to make major inroads in explaining the novel creation of an optically turbulent atmospheric light guide. Again our excellent supercomputing resources provided by DURBP awards allowed us to build the sophisticated parallel solvers needed to resolve extremely s...