Title :
Digital phase control in a Y-coupled plasmonic terahertz laser system
Author :
Chakraborty, S. ; Marshall, O. ; Khairuzzaman, M. ; Beere, H.E. ; Ritchie, D.A.
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK
Abstract :
Electrically independent terahertz quantum cascade lasers in a Y configuration are coupled via the evanescent electromagnetic field in their shared substrate. Switchable lasing mode solutions are defined in one laser by a longitudinal computer generated hologram introduced to it´s plasmonic waveguide. When operated together, this control is extended to the coupled, unmodified laser.
Keywords :
computer-generated holography; digital control; electromagnetic fields; laser modes; microwave photonics; optical control; phase control; plasmonics; quantum cascade lasers; terahertz wave devices; waveguide lasers; Y configuration; Y-coupled plasmonic terahertz laser system; digital phase control; electrically independent terahertz quantum cascade lasers; evanescent electromagnetic field; longitudinal computer generated hologram; plasmonic waveguide; shared substrate; switchable lasing mode; unmodified laser; Optical switches; Optical waveguides; Plasmons; Quantum cascade lasers; Waveguide lasers;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380368
