Type-Ⅱ interband cascade lasers (IC lasers) are an efficient source of mid-IR radiation with performance characteristics that make them practical for use in IR counter measure (CM) applications. Recent experimental results include CW operation above 214 K and pulsed operation at 315 K for epi-side-up mounted devices. IC lasers have demonstrated CW power conversion efficiencies as high as 23% at 80 K with external quantum efficiencies exceeding 500%. Theoretical studies indicate a pathway to higher temperatures and greater power. Recent performance characteristics relevant to IRCM will be presented, including output beam characteristics, source brightness, and thermal characteristics that ultimately impact system size, weight, and cost.
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