Title :
Higher order lateral mode suppression schemes for edge emitting terahertz quantum cascade laser waveguides
Author :
Tanvir, Huda ; Rahman, B.M.A. ; Grattan, K.T.V.
Author_Institution :
Sch. of Eng. & Math. Sci., City Univ. London, London, UK
Abstract :
Performance of a slot metal clad THz QCL waveguide to suppress higher order lateral modes is elucidated here. Results demonstrated here show that the proposed structure provides as high as 4-fold rise in gain threshold for the higher order modes.
Keywords :
optical waveguides; quantum cascade lasers; quantum interference devices; terahertz wave devices; edge emitting terahertz quantum cascade laser waveguide; gain threshold; higher order lateral mode suppression scheme; slot metal clad THz QCL waveguide; Cavity resonators; Indexes; Metals; Optical imaging; Optical waveguides; Performance evaluation; Quantum cascade lasers;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104997
