Short wavelength (/spl lambda//spl sim/4.3 /spl mu/m) high-performance continuous-wave quantum-cascade lasers
- 23 May 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 17 (6) , 1154-1156
- https://doi.org/10.1109/lpt.2005.846568
Abstract
We report continuous-wave (CW) operation of a 4.3-μm quantum-cascade laser from 80 K to 313 K. For a high-reflectivity-coated 11-μm-wide and 4-mm-long laser, CW output powers of 1.34 W at 80 K and 26 mW at 313 K are achieved. At 298 K, the CW threshold current density of 1.5 kA/cm 2 is observed with a CW output power of 166 mW and maximum wall-plug efficiency of 1.47%. The CW emission wavelength varies from 4.15 μm at 80 K to 4.34 μm at 298 K, corresponding to a temperature-tuning rate of 0.87 nm/K. The beam full-width at half-maximum values for the parallel and the perpendicular far-field patterns are 26/spl deg/ and 49/spl deg/ in CW mode, respectively.Keywords
This publication has 10 references indexed in Scilit:
- Above room temperature operation of short wavelength (λ=3.8μm) strain-compensated In0.73Ga0.27As–AlAs quantum-cascade lasersApplied Physics Letters, 2004
- Ridge-Width Dependence on High-Temperature Continuous-Wave Quantum-Cascade Laser OperationIEEE Photonics Technology Letters, 2004
- High-temperature, high-power, continuous-wave operation of buried heterostructure quantum-cascade lasersApplied Physics Letters, 2004
- Midinfrared “W” diode lasers with improved electrical characteristicsApplied Physics Letters, 2003
- Room-temperature type-II interband cascade lasers near 4.1 μmApplied Physics Letters, 2003
- High-average-power, high-duty-cycle (λ∼6 μm) quantum cascade lasersApplied Physics Letters, 2002
- Continuous Wave Operation of a Mid-Infrared Semiconductor Laser at Room TemperatureScience, 2002
- High-temperature operation of distributed feedback quantum-cascade lasers at 5.3 μmApplied Physics Letters, 2001
- Short wavelength (λ∼3.4 μm) quantum cascade laser based on strained compensated InGaAs/AlInAsApplied Physics Letters, 1998
- Complex-coupled quantum cascade distributed-feedback laserIEEE Photonics Technology Letters, 1997