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  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper CB_6_1

Widely Tunable Interband Cascade Lasers for the Mid-Infrared

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Abstract

A multitude of absorption lines of important gases is located in the infrared region between 3 µm and 6 µm, making it very interesting for tunable diode laser spectroscopy (TDLS). In recent years, several breakthroughs have allowed the demonstration of good laser performance in this spectral region [1]. The most significant development in this regard is the interband cascade laser (ICL) which combines features from diode and quantum cascade lasers and has shown good performance (including cw operation at RT) in the 3-5.5 µm range after major design optimizations [2]. Recent achievements include the demonstration of ICLs with very low threshold current densities [3], and emission at room temperature at wavelengths above 6 µm [4].

© 2015 IEEE

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