Title :
Stable CW THz spectroscopy with PLC-LN hybrid phase modulator
Author :
Takuro Tajima;Jae-Young Kim;Masahito Nakamura;Ho-jin Song;Katsuhiro Ajito;Akihiko Hirata
Author_Institution :
NTT Device Technology Laboratories, NTT Corporation, Atsugi-shi, Kanagawa, 243-0198 Japan
Abstract :
We present a compact and stable continuous-wave terahertz spectroscopic system with a planar lightwave circuit-LiNbO3 phase modulator for terahertz phase control. Thanks to significantly shortened optical paths with temperature control, the system enables fast vector measurement with effective phase stabilization. The phase stability of 2° was obtained over a period of 2 h.
Keywords :
"Phase control","Phase modulation","Spectroscopy","Temperature measurement","Thermal stability","Photonics","Temperature control"
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Electronic_ISBN :
2162-2035
DOI :
10.1109/IRMMW-THz.2015.7327738
