Title :
Emission of dual wavelengths in a quantum cascade laser
Author :
Kim, Gyungock ; Chang, Ki Suk ; Kim, In Gyoo ; Lee, Ki Joong
Author_Institution :
Electron. & Telecommun. Res. Inst., Seoul
Abstract :
The emission spectra of quantum cascade lasers measured as a function of current show two wavelength peaks, separated by 100 to ~400 nm. The optical output vs current curves also exhibit two separate structures at low duty cycles, indicating two different lasing conditions originating from two different transition levels.
Keywords :
quantum cascade lasers; emission spectra; lasing conditions; quantum cascade laser; Current measurement; Dielectric substrates; Infrared spectra; Laser modes; Molecular beam epitaxial growth; Optical design; Quantum cascade lasers; Stimulated emission; Waveguide lasers; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391808
