Title :
Engineering of effective quadratic and cubic nonlinearities in two-period QPM gratings
Author :
Bang, O. ; Clausen, C.B. ; Torner, L.
Author_Institution :
Dept. of Math. Modelling, Tech. Univ. Denmark, Lyngby, Denmark
Abstract :
Summary form only given. Quasi-phase-matching (QPM) by electric-field poling in ferro-electric materials, such as LiNbO/sub 3/, is promising due to the possibilities of engineering the photolithographic mask, and thus the QPM grating, without also generating a linear grating. A proper design of the longitudinal grating structure allows for distortion free temporal pulse compression, soliton shaping, broad-band phase matching, multiwavelength second-harmonic generation (SHG), and an enhanced cascaded phase shift. Transverse patterning can be used for beam-tailoring, broad-band SHG and soliton steering.
Keywords :
diffraction gratings; lithium compounds; nonlinear optical susceptibility; optical design techniques; optical harmonic generation; optical materials; optical phase matching; optical pulse compression; optical solitons; LiNbO/sub 3/; beam-tailoring; broad-band SHG; broad-band phase matching; cubic nonlinearities; design; distortion free temporal pulse compression; electric-field poling; enhanced cascaded phase shift; ferro-electric materials; longitudinal grating structure; multiwavelength second-harmonic generation; photolithographic mask; quadratic nonlinearities; quasi-phase-matching; soliton shaping; soliton steering; transverse patterning; two-period quasi-phase matched gratings; Frequency; Gratings; Nonlinear optics; Optical mixing; Optical pulse generation; Optical pulses; Optical pumping; Optimized production technology; Pulse generation; Space vector pulse width modulation;
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.2000.906838
