Title :
Long wavelength (λ≃13 μm) quantum cascade lasers
Author :
Gmachl, C. ; Capasso, F. ; Tredicucci, A. ; Sivco, D.L. ; Hutchinson, A.L. ; Cho, A.Y.
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
fDate :
5/28/1998 12:00:00 AM
Abstract :
Long wavelength (λ≃13 μm) quantum-cascade (QC) lasers are reported. With these lasers operating close to the cutoff wavelength of the second atmospheric window, full coverage of the mid-infrared transparency region is now achieved with GaInAs/AlInAs QC lasers. These devices operate in pulsed mode up to 175 K, with several milliwatts of peak output power at liquid nitrogen temperature
Keywords :
III-V semiconductors; aluminium compounds; conduction bands; gallium compounds; indium compounds; quantum well lasers; 13 micrometre; 175 K; GaInAs-AlInAs; cutoff wavelength; liquid nitrogen temperature; long wavelength quantum cascade lasers; mid-infrared transparency region; peak output power; pulsed mode; second atmospheric window;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980722
