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InAs-based single-mode distributed feedback (DFB) interband cascade (IC) lasers were investigated. The DFB grating was patterned using interference lithography to etch the cladding-free upper separate confinement layer of the IC laser structure. Single-mode emission with a side mode suppression ratio of $\sim 30$ dB was obtained in continuous wave operation at temperatures up to 180 K near 4.5 ...
Pulsed and continuous wave operations of InAs-based interband cascade lasers were demonstrated at temperatures up to 377 and 308K, respectively, with low threshold current densities (278 A/cm2) at 300K at wavelengths around 4.7 μm.
We report the demonstration of InAs-based interband cascade lasers at temperatures up to 315 K and 253 K operating in pulsed and continuous wave modes, respectively, near 5.3 microns.
We report the demonstration of InAs-based interband cascade lasers in a temperature range from 80 to 260 K operating in pulsed and continuous wave modes at wavelengths near 6.0, 7.4, and 10.3 microns.
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