Answers are grounded in this paper and cite their sources.
Experimental analysis reveals substantially reduced thermal conductivity in gallium arsenide phosphide alloys, indicating that poor heat dissipation impedes continuous laser operation.
Measurements of thermal conductivity for the range 3° to 300°K are reported for both pure and heavily doped n- and p-type GaAs single crystals, and n-type heavily doped polycrystalline GaAs1−xPx crystals with six compositions between x=0 and x=0.5. The alloy ingots have much lower K values due to alloy scattering, with a composition of 35% phosphide content (near the limit of laser operation) having a K less than 1/20 that of pure GaAs at 77°K. Hence heat dissipation is a serious obstacle to continuous operation of alloy lasers.
No takes yet. Share an insight, caveat, or question.
Carlson et al. (1965) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: