Title :
Submillimeter wave surface-emitting difference frequency generation in periodically poled lithium niobate waveguide
Author :
Avetisyan, Yuri H. ; Kocharyan, Karen N.
Author_Institution :
Dept. of Microwave Eng., Yerevan State Univ., Armenia
Abstract :
The submillimeter wave difference frequency generation (DFG) in periodically poled lithium niobate (LiNbO3) (PPLN) waveguide structure is considered theoretically. It is shown that the PPLN waveguide is capable of emitting difference frequency radiation in direction normal to the surface of a waveguide if the poling period is equal to L=λ/ng (λ is a wavelength of submillimeter radiation and ng is a mean refractive index of the optical group velocity). In contrast to the optical waves, the PPLN waveguide with such period can be easily fabricated for the submillimeter wave DFG
Keywords :
dielectric polarisation; lithium compounds; optical frequency conversion; optical materials; optical waveguides; submillimetre wave generation; LiNbO3; PPLN waveguide; difference frequency radiation; lithium niobate waveguide; mean refractive index; optical group velocity; periodically poled; poling period; submillimeter wave surface-emitting difference frequency generation; waveguide structure; Frequency; Lithium niobate; Nonlinear optics; Optical refraction; Optical surface waves; Optical variables control; Optical waveguide theory; Optical waveguides; Surface waves; Waveguide theory;
Conference_Titel :
Transparent Optical Networks, 1999. International Conference on
Conference_Location :
Kielce
Print_ISBN :
0-7803-5637-3
DOI :
10.1109/ICTON.1999.781875
