Title :
A fast frequency-tunable ring-cavity THz-wave parametric oscillator
Author :
Minamide, Hiroaki ; Ikari, Tomofumi ; Imai, Kazubiro ; Ishikawa, Youichi ; Ito, Hiromasa
Author_Institution :
Photodynamics Res. Center, RIKEN, Sendai, Japan
Abstract :
We report on a rapid frequency-tunable THz-wave parametric oscillator (TPO) with a ring-cavity configuration. A three-mirrored cavity was used as the TPO cavity, which contained a MgO:LiNbO3 nonlinear optical crystal. Fast frequency tuning was obtained by rotating a single mirror mounted on a Galvano-optical beam scanner. Consequently, continuous tunability was successfully obtained in the range from 0.7 to 2.6 THz. The THz-wave output exceeded 100pJ/pulse in a broad range from 1.0 to 1.5 THz.
Keywords :
high-speed optical techniques; laser cavity resonators; laser mirrors; laser tuning; lithium compounds; magnesium compounds; niobium compounds; optical parametric oscillators; optical scanners; photorefractive materials; submillimetre wave oscillators; 0.7 to 2.6 THz; Galvano-optical beam scanner; LiNbO3:MgO; THz-wave parametric oscillator; YAG:Nd; YAl5O12:Nd; mirror rotation; nonlinear optical crystal; rapid frequency-tunable TPO; ring-cavity configuration; Frequency; Laser excitation; Laser tuning; Mirrors; Nonlinear optics; Optical beams; Optical pulses; Optical pumping; Optical tuning; Ring oscillators;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1274819
