Quantum-cascade lasers without injector regions operating above room temperature

Andrea Friedrich; Gerhard Boehm; Markus Christian Amann; Giuseppe Scarpa

doi:10.1063/1.1906302

Quantum-cascade lasers without injector regions operating above room temperature

Andrea Friedrich, Gerhard Boehm, Markus Christian Amann, Giuseppe Scarpa

Walter Schottky Institut

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

We present above-room-temperature operation of an injectorless quantum-cascade (QC) laser. The active region is designed as a four-level staircase and has been realized in the strain-compensated material system Ga0.4 In0.6 As Al0.56 In0.44 As based on InP. In pulsed operation the lasers work up to a heat-sink temperature of 340 K, the highest temperature achieved so far with injectorless QC lasers. A large wavelength shift is observed for higher bias fields and (therefore) at high temperatures (10 μm at 77 K and 8.4 μm at 300 K).

Original language	English
Article number	161114
Pages (from-to)	1-2
Number of pages	2
Journal	Applied Physics Letters
Volume	86
Issue number	16
DOIs	https://doi.org/10.1063/1.1906302
State	Published - 18 Apr 2005

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abstract = "We present above-room-temperature operation of an injectorless quantum-cascade (QC) laser. The active region is designed as a four-level staircase and has been realized in the strain-compensated material system Ga0.4 In0.6 As Al0.56 In0.44 As based on InP. In pulsed operation the lasers work up to a heat-sink temperature of 340 K, the highest temperature achieved so far with injectorless QC lasers. A large wavelength shift is observed for higher bias fields and (therefore) at high temperatures (10 μm at 77 K and 8.4 μm at 300 K).",

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AU - Friedrich, Andrea

AU - Boehm, Gerhard

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AU - Scarpa, Giuseppe

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N2 - We present above-room-temperature operation of an injectorless quantum-cascade (QC) laser. The active region is designed as a four-level staircase and has been realized in the strain-compensated material system Ga0.4 In0.6 As Al0.56 In0.44 As based on InP. In pulsed operation the lasers work up to a heat-sink temperature of 340 K, the highest temperature achieved so far with injectorless QC lasers. A large wavelength shift is observed for higher bias fields and (therefore) at high temperatures (10 μm at 77 K and 8.4 μm at 300 K).

AB - We present above-room-temperature operation of an injectorless quantum-cascade (QC) laser. The active region is designed as a four-level staircase and has been realized in the strain-compensated material system Ga0.4 In0.6 As Al0.56 In0.44 As based on InP. In pulsed operation the lasers work up to a heat-sink temperature of 340 K, the highest temperature achieved so far with injectorless QC lasers. A large wavelength shift is observed for higher bias fields and (therefore) at high temperatures (10 μm at 77 K and 8.4 μm at 300 K).

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Quantum-cascade lasers without injector regions operating above room temperature

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