Title :
Frequency stabilization of a pump 9R(8) CO2 laser for simultaneously oscillated 5.2- and 6.3-THz CH3OD lasers
Author :
Nakayama, Keisuke ; Okajima, S. ; Akiyama, Toyokazu ; Tanaka, Kiyoshi ; Kawahata, K.
Author_Institution :
Chubu Univ., Kasugai, Japan
Abstract :
A two color far-infrared (FIR) laser interferometer and polarimeter using 5.2- and 6.3-THz CH3OD lasers pumped by a 9R(8) CO2 laser has been developed for future plasma diagnostics. The pump 9R(8) CO2 laser has been stabilized by an external Stark-cell modulation. The performances are the power stability of 108 ± 0.6 W/hour and the frequency stability of ± 230 kHzp-p/hour at the line center.
Keywords :
carbon compounds; gas lasers; light interferometers; optical modulation; optical pumping; polarimeters; CO2; color far-infrared laser interferometer; external Stark-cell modulation; far-infrared laser polarimeter; frequency 5.2 THz; frequency 6.3 THz; frequency stabilization; optical pumping; power stability; pump carbon dioxide laser; Gas lasers; Laser excitation; Laser modes; Laser stability; Power lasers; Pump lasers; Thermal stability;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665682
