Title :
Dual signal-wave parametric oscillation using PPLN for generating THz-waves from DAST crystal
Author :
Hatanaka, Teruyoshi ; Kawase, Kanta ; Takahashi, Hiroki ; Nakamura, Kentaro ; Taniuchi, Tetsuo ; Ito, H.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
Summary form only given. Optical parametric oscillators (OPOs) have been used extensively as coherent tunable light sources because of their wide tunability and high efficiency. In OPOs, quasi-phase-matching (QPM) is an alternative to conventional birefringent phase-matching. Periodically poled LiNbO/sub 3/ (PPLN) is widely used in QPM because of its large nonlinear coefficients, wide transparent range, and desirable phase-matching characteristics. The design of PPLN is not limited to a single grating period, so that it is possible to fabricate complicated structures for specialized phase matching using lithographic masks. We report on the operation of a dual signal-wave (DSW) QPM-OPO with cascade gratings.
Keywords :
dielectric polarisation; diffraction gratings; infrared sources; lithium compounds; masks; optical fabrication; optical frequency conversion; optical materials; optical parametric oscillators; optical phase matching; optical tuning; photolithography; 4-dimethylamino-N-methyl-4-stilbazolium-tosylate; DAST crystal; LiNbO/sub 3/; PPLN; THz-waves; birefringent phase-matching; cascade gratings; coherent tunable light sources; design; dual signal-wave parametric oscillation; efficiency; fabrication; lithographic masks; nonlinear coefficients; optical parametric oscillators; periodically poled materials; phase-matching characteristics; quasi-phase-matching; specialized phase matching; transparent range; tunability; Birefringence; Frequency conversion; Gratings; Light sources; Nonlinear optics; Optical frequency conversion; Oscillators; Signal generators;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.906831
