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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 -
Mid-IR room temperature quantum cascade lasers
(1997)Proceedings of SPIE ~ In-plane semiconductor lasers: from ultraviolet to midinfrared : 10-13 February 1997, San Jose, CaliforniaConference Paper -
Tunable sources and quantum cascade lasers in the mid-IR
(1997)1997 Digest of the IEEE/LEOS summer topical meetings: 11-15 August 1996: at The Queen Elizabeth Hotel, Montreal, Quebec, CanadaConference Paper -
Unipolar mid-infrared semiconductor lasers
(1997)1997 International Conference on Indium Phosphide and Related Materials: Conference ProceedingsConference Paper