Title :
In-line and compact QWIP for reference signal detection with Quantum Cascade lasers at 4.6μm
Author :
Bentil, Ekua N. ; Penello, Germano M. ; Charles, William O. ; Gmachl, Claire F.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
Abstract :
By implementing quantum well infrared photodetectors (QWIPs) as passive optical elements, we present a novel approach to obtain a reference signal needed in gas spectroscopy systems based on reflection and transmission properties of these photodetectors.
Keywords :
infrared detectors; light reflection; light transmission; photodetectors; quantum cascade lasers; signal detection; spectroscopy; compact QWIP; gas spectroscopy; passive optical elements; quantum cascade lasers; quantum well infrared photodetectors; reference signal detection; reflection properties; transmission properties; Broadband communication; Detectors; Gas lasers; Laser beams; Measurement by laser beam; Quantum cascade lasers; Signal detection;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
