Title :
Long-wavelength (λ ≈ 14 μm) Quantum Cascade lasers with low threshold and high characteristic temperature (∼ 300 K)
Author :
Huang, Xue ; Charles, William O. ; Gmachl, Claire F.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
Abstract :
We demonstrate a high-performance Quantum Cascade laser at ~ 14 μm wavelength. It shows a low threshold current density of 2.1 kA/cm2 at 300 K and high characteristic temperature of 309 K around room temperature.
Keywords :
current density; quantum cascade lasers; characteristic temperature; long-wavelength quantum cascade lasers; temperature 293 K to 298 K; temperature 300 K; temperature 309 K; threshold current density; Laser transitions; Optical waveguides; Quantum cascade lasers; Temperature; Threshold current; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
