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High power continuous wave operation of mid-infrared quantum cascade lasers
(1997)Proceedings of the 1997 10th IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS)In recent years laser emission from unipolar quantum cascade (QC) structures has been demonstrated in a wide range of wavelengths and temperatures. Continuous wave (CW) operation has also been reported, but with limited output powers (a few tens of mW). We present here the results obtained on a mid-infrared QC laser, whose design has been carefully optimized in order to maximize the injection efficiency and the gain. The device employs a ...Conference Paper -
Recent advances in quantum cascade lasers
(1997)Proceedings of the 1997 10th IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS)Quantum cascade (QC) lasers are fundamentally new semiconductor lasers based on intersubband transitions and on electrons emitting one photon per stage as they cascade through a periodic quantum well structure. As such their wavelength can be tailored over a wide range and their differential efficiency is inherently greater than unity leading to high power operation. Recent results will be presented demonstrating high power room temperature ...Conference Paper -
Quantum cascade lasers: new light sources for the mid-to-far-infrared
(1996)ESSDERC'96. Proceedings of the 26th European Solid State Device Research ConferenceConference Paper -
Mid-infrared (λ = 4.8 - 5.5 µm) electric-field tunable intersubband electroluminescent diode
(1994)CLEO '94: Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. 1994 Technical Digest Series. Conference EditionConference Paper -
Electronic Quarter-Wave Stacks and Bragg Reflectors: Physics of Localized Continuum States in Quantum Semiconductor Structures
(1994)NATO ASI series. Series E, Applied sciences ~ Quantum Well Intersubband Transition Physics and DevicesConference Paper -
Quantum cascade lasers: a unipolar intersubband semiconductor laser
(1995)22nd International Conference on the Physics of SemiconductorsConference Paper -
Continuous wave quantum cascade lasers in the 4-10 mu m wavelength region
(1996)Proceedings of SPIE ~ Laser Diodes and Applications IIConference Paper -
Long-wavelength (9-11 /spl mu/m) quantum cascade lasers
(1996)54th Annual Device Research Conference digest : June 24-26, 1996, University of California, Santa Barbara, Santa Barbara, CaliforniaConference Paper -
Quantum cascade lasers: unipolar intersubband infrared lasers
(1995)Seventh International Conference on Indium Phosphide and Related Materials : May 9-13, 1995, Hokkaido University Conference Hall, Sapporo, Hokkaido, Japan : conference proceedingsConference Paper -
Tunable distributed-feedback quantum-cascade lasers for gas sensing applications
(1998)Proceedings of SPIE ~ Fabrication, testing, and reliability of semiconductor lasers III : 29-30 January 1998, San Jose, CaliforniaConference Paper