@article { ISI:000086994100006,
	title = {Single-mode tunable quantum cascade lasers in the spectral range of the CO2 laser at lambda=9.5-10.5 mu m},
	journal = {IEEE PHOTONICS TECHNOLOGY LETTERS},
	volume = {12},
	number = {5},
	year = {2000},
	month = {MAY},
	pages = {474-476},
	publisher = {IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC},
	type = {Article},
	address = {345 E 47TH ST, NEW YORK, NY 10017-2394 USA},
	abstract = {Widely tunable, single-mode quantum cascade distributed feedback (QC-DFB) lasers based on a complex coupling scheme and operating in the wavelength range of the CO2 laser (lambda approximate to 9.5-10.5 mu m) are reported. Dynamic single-mode emission up to high current levels is obtained. The continuous single-mode tuning range is 150 nm, while the tuning range of the equivalent Fabry-Perot laser is similar to 400 nm, By homogeneously reducing all layer thicknesses by 10\%, the wavelength coverage of a single QC-laser design can be extended to cover one entire regular band of the fundamental CO2 laser spectrum.},
	keywords = {distributed feedback lasers, mid-infrared, single-mode lasers, tunable lasers, unipolar semiconductor laser},
	issn = {1041-1135},
	doi = {10.1109/68.841257},
	author = {Kohler, R and C. Gmachl and F. Capasso and Tredicucci, A and Sivco, DL and Cho, AY}
}
