Title :
High-accuracy heterodyne detection of THz radiation exploiting telecommunication technologies
Author :
Folland, T.G. ; Ramos-Pulido, A. ; Marshall, O.P. ; Beere, H.E. ; Ritchie, D.A. ; Chakraborty, S.
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK
Abstract :
We report the first open-loop heterodyne technique using standard telecom optical fiber components for spectral characterization of THz semiconductor lasers. This allows the measurement of continuous modal tuning with sub-GHz accuracy and 20dB dynamic range.
Keywords :
heterodyne detection; laser tuning; microwave photonics; quantum cascade lasers; terahertz wave detectors; THz radiation; THz semiconductor lasers; continuous modal tuning measurement; high-accuracy heterodyne detection; open-loop heterodyne technique; spectral characterization; standard telecom optical fiber components; telecommunication technology; Current measurement; Optical fibers; Optical mixing; Quantum cascade lasers; Semiconductor device measurement; Tuning;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
