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InP-Based Type-II Quantum-Well Lasers and LEDs

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8 Author(s)
Sprengel, S. ; Walter Schottky Inst., Tech. Univ. Munchen, Garching, Germany ; Grasse, C. ; Wiecha, P. ; Andrejew, A.
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Type-II InP-based light sources provide a promising concept for mid-infrared lasers. These have recently made huge progress, as the first electrically and optically pumped lasers could be demonstrated beyond the wavelength limit for type-I InP-based lasers (~2.3 μm). In this paper, we introduce the material system and device concepts, and report the latest achievements, such as electrically pumped lasing operation up to a wavelength of 2.6 μm in pulsed mode, continuous-wave resonant-cavity light-emitting diode operation up to a wavelength of 3.3 μm at 20-80 °C and photoluminescence even up to 3.9 μm.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:19 ,  Issue: 4 )