Title :
High-temperature interband cascade lasers emitting in the 2.9-4.2 μm wavelength range
Author :
Lindle, J.R. ; Kim, C.S. ; Kim, M. ; Bewley, W.W. ; Canedy, C.L. ; Vurgaftman, I. ; Meyer, J.R.
Author_Institution :
Naval Res. Lab., Washington, DC
Abstract :
This paper reports an evaluation of carrier lifetimes and Auger coefficients for numerous interband cascade lasers (ICLs) emitting over a large part of the midinfrared spectrum. The lifetimes and Auger coefficients are extracted by correlating the measured pulsed threshold current densities and slope efficiencies of broad-area ICLs with calculations of optical gain vs. carrier density in the active region. Results show that the improved properties that led to room-temperature cw operation are similarly available in devices spanning the spectral window of at least 2.9-4.2 mum.
Keywords :
Auger effect; carrier density; carrier lifetime; infrared spectra; semiconductor lasers; thermo-optical effects; Auger coefficients; carrier density; carrier lifetimes; continuous-wave operation; high-temperature lasers; interband cascade lasers; midinfrared spectrum; optical gain; room-temperature operation; temperature 293 K to 298 K; wavelength 2.9 mum to 4.2 mum; Charge carrier lifetime; Current measurement; Density measurement; Gain measurement; Optical pulses; Pulse measurements; Quantum cascade lasers; Stimulated emission; Threshold current; Wavelength measurement;
Conference_Titel :
IEEE Lasers and Electro-Optics Society, 2008. LEOS 2008. 21st Annual Meeting of the
Conference_Location :
Acapulco
Print_ISBN :
978-1-4244-1931-9
Electronic_ISBN :
978-1-4244-1932-6
DOI :
10.1109/LEOS.2008.4688836
