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

fYear

2012

fDate

23-28 Sept. 2012

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on

Conference_Location

Wollongong, NSW

ISSN

2162-2027

Print_ISBN

978-1-4673-1598-2

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/IRMMW-THz.2012.6380368

Filename

6380368