Title :
High effective generation and detection of THz waves using a laser chaos and a super-focusing with metal V-grooved waveguides
Author :
Fumiyoshi Kuwashima;Takuya Shirao;Toshihiro Kishibata;Yusuke Akamine;Noriyuki Iwao;Manatu Ooi;Masahiko Tani;Kazuyoshi Kurihara;Kohji Yamamoto;Takeshi Nagashima;Makoto Nakajima;Masanori Hangyo
Author_Institution :
Department of Electrical, Electronics and Computer Engineering, Fukui University of Technology, Fukui 910-8505, Japan
Abstract :
Generation of a wide-range THz waves are investigated from a photoconductive antenna excited using a chaotic oscillation multimode semiconductor laser with optical delayed feedback by an external mirror. The properties of the generated THz wave are compared with those of a case excited by a CW steady state laser. The stable THz wave is obtained from the multimode-laser diode excited photoconductive antenna by using a laser chaos. For a high sensitive detection, a metal V-grooved waveguide (MVG) is also used. The 1.6 times signal is detected using MVG compared with conventional system using Si lens.
Keywords :
"Chaos","Lenses","Metals","Optical waveguides","Oscillators","Mirrors","Antennas"
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Electronic_ISBN :
2162-2035
DOI :
10.1109/IRMMW-THz.2015.7327808
