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- W2531824722 abstract "We report interband cascade vertical-cavity surface-emitting lasers (ICVCSELs) that operate in pulsed mode at temperatures up to 70 °C. Their emission at λ ≈ 3.4 μm extends considerably the previous longest wavelength of 3.0 μm for an electrically-pumped vertical-cavity surface-emitting laser operating at room temperature. The output from mesas having diameters ranging from 30 to 60 μm (with emission aperture diameters of 20–50 μm) is circularly symmetric, and the threshold current densities at T = 25 °C are as low as 390 A/cm2. However, the differential slope efficiencies are low, e.g., ≤50 mW/A at T = 25 °C, due to loss in the top and bottom mirrors and reduced current efficiency. The smallest device operates in a single spectral mode despite having an emission aperture much wider than the wavelength." @default.
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- W2531824722 date "2016-10-10" @default.
- W2531824722 modified "2023-10-01" @default.
- W2531824722 title "Room-temperature mid-infrared interband cascade vertical-cavity surface-emitting lasers" @default.
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- W2531824722 doi "https://doi.org/10.1063/1.4964840" @default.
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