@article { ISI:000222277900002,
	title = {Active mode locking of broadband quantum cascade lasers},
	journal = {IEEE JOURNAL OF QUANTUM ELECTRONICS},
	volume = {40},
	number = {7},
	year = {2004},
	month = {JUL},
	pages = {844-851},
	publisher = {IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC},
	type = {Article},
	address = {445 HOES LANE, PISCATAWAY, NJ 08855 USA},
	abstract = {Active mode locking in broadband quantum cascade (QC) lasers with a repetition rate of about 14.3 GHz has been achieved through the modulation of the laser bias current. At low driving currents, the active mode locking in broadband QC lasers resembles the active mode locking in single-wavelength QC lasers, while at high driving currents, the mode locking properties are governed by the broad spectral gain of these lasers. At high bias currents, the active modulation excites Fabry-Perot modes across the entire gain spectrum from 6.7 to 7.4 mum, with clear evidence of mode locking. The spectral width of the optical gain in the broadband QC lasers exceeds 2 THz and indicates the potential for generating subpicosecond pulses.},
	keywords = {mode-locked lasers, pulse generation, pulsed laser, semiconductor lasers, Ultrafast},
	issn = {0018-9197},
	doi = {10.1109/JQE.2004.830186},
	url = {dx.doi.org/10.1109/JQE.2004.830186},
	author = {Soibel, A and F. Capasso and Gmachl, C. and Peabody, ML and Sergent, AM and Paiella, R and Hwang, HY and Sivco, DL and Cho, AY and Liu, HC and Jirauschek, C and Kartner, FX}
}
