Quantum cascade lasers emitting near 2.6 μm
Abstract
Quantum cascade lasers (QCLs) emitting at wavelengths as short as 2.63-2.65 μm are demonstrated. The InAs/AlSb QCL design was optimized to weaken carrier leakage into the L-valley by reducing coupling between the active InAs quantum wells. The lasers with HR-coated facets operated up to 175 K.
- Publication:
-
Applied Physics Letters
- Pub Date:
- April 2010
- DOI:
- 10.1063/1.3385778
- Bibcode:
- 2010ApPhL..96n1110C
- Keywords:
-
- aluminium compounds;
- III-V semiconductors;
- indium compounds;
- quantum cascade lasers;
- 42.55.Px;
- 42.60.By;
- Semiconductor lasers;
- laser diodes;
- Design of specific laser systems