Title :
Nonlinear Coefficients of Hafnium doped Lithium Niobate Crystals
Author :
Cristiani, I. ; Minzioni, P. ; Parravicini, J. ; Yu, J. ; Tartara, L. ; Degiorgio, V. ; Kokanyan, E.P.
Author_Institution :
Pavia Univ., Pavia
Abstract :
The study aims to measure the second-order nonlinear coefficient of LiNbO3:Hf crystals as a function of the doping concentration. Second-harmonic generation measurements are performed using picosecond pulses of an optical parametric oscillator. Results show that doping levels significantly affect the wavelength dependence of refractive indices. Crystals with dopant concentration below 3% exhibits a nonlinear efficiency comparable to congruent crystals which shows enhanced resistance to photorefractive damage.
Keywords :
doping profiles; hafnium; lithium compounds; optical harmonic generation; photorefractive materials; refractive index; LiNbO3:Hf; congruent crystals; doping concentration; doping levels; hafnium doped lithium niobate crystals; optical parametric oscillator; photorefractive damage; picosecond pulses; refractive indices; second harmonic generation; second-order nonlinear coefficient; Crystals; Doping; Electrical resistance measurement; Hafnium; Lithium niobate; Optical pulse generation; Optical refraction; Performance evaluation; Pulse measurements; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386089
