Title :
Tunable sources and quantum cascade lasers in the mid-IR
Author :
Gmachl, C. ; Faist, J. ; Sirtori, C. ; Capasso, F. ; Sivco, D.L. ; Baillargeon, J.N. ; Hutchinson, A.L. ; Cho, A.Y.
Author_Institution :
Lucent Technol., Bell Labs., Murray Hill, NJ, USA
Abstract :
Summary form only given. High power, room temperature operation of a DFB quantum cascade (QC) laser emitting at /spl lambda//spl sim/5 /spl mu/m has recently been reported. This laser is based on a vertical transition and is optimized for high temperature operation by a design that reduces thermal backfilling and enhances injection efficiency-through a funnel injector and a so-called "three well" active region.
Keywords :
distributed feedback lasers; infrared sources; laser modes; laser transitions; laser tuning; quantum well lasers; 5 mum; DFB quantum cascade laser; funnel injector; high power room temperature operation; high temperature operation; injection efficiency enhancement; mid-IR; quantum cascade lasers; quantum well laser; thermal backfilling; three well active region; tunable sources; vertical transition; Design optimization; Laser transitions; Laser tuning; Optical design; Power lasers; Quantum cascade lasers; Quantum well lasers; Temperature; Thermal resistance; Tunable circuits and devices;
Conference_Titel :
Vertical-Cavity Lasers, Technologies for a Global Information Infrastructure, WDM Components Technology, Advanced Semiconductor Lasers and Applications, Gallium Nitride Materials, Processing, and Devi
Conference_Location :
Montreal, Que., Canada
Print_ISBN :
0-7803-3891-X
DOI :
10.1109/LEOSST.1997.619208
