Title :
Thermally activated absorption in terahertz semiconductor heterostructure lasers
Author :
Kröll, J. ; Darmo, J. ; Unterrainer, K. ; Dhillon, S.S. ; Sirtori, C. ; Marcadet, X. ; Calligaro, M.
Author_Institution :
Vienna Univ. of Technol., Vienna
Abstract :
We present thermally activated absorption in a terahertz semiconductor heterostructure laser based on the bound-to-continuum design. By sensing broadband terahertz pulses transmitted through such laser structure the losses and the real device temperature are sensed.
Keywords :
light absorption; semiconductor lasers; submillimetre wave lasers; bound-to-continuum design; broadband terahertz pulses; terahertz semiconductor heterostructure lasers; thermally activated absorption; Absorption; Frequency; Optical scattering; Optical sensors; Optical waveguides; Quantum cascade lasers; Semiconductor lasers; Submillimeter wave technology; Temperature; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4453164
