Title :
Contact electrode method for bulk periodically poled LiNbO3
Author :
Sato, M. ; Smith, P.G.R. ; Hanna, D.C.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
We report a new fabrication process for periodically poled LiNbO 3 (PPLN)-the contact electrode method (CEM)-in which the periodic electrode is pressed onto one of the substrate surfaces with a uniform electrode on the other. CEM does not need any photolithographic processes on the substrate surface which may lead to greatly reduced fabrication cost. With this method bulk PPLN has been successfully fabricated with a period of 6.58 μm for frequency doubling a Nd:YAG fundamental wavelength of 1.064 μm over an interaction length of 3 mm using z-cut 0.3 mm-thickness LiNbO3 substrates. The uniformity of the PPLN was verified from the dependence of SH power on the temperature, and 62.5 mW of green light was generated for an input fundamental power of 3.2 W
Keywords :
electric domains; electrodes; ferroelectric materials; lithium compounds; optical fabrication; optical harmonic generation; optical materials; substrates; 0.3 mm; 1.064 mum; 3.2 W; 6.58 mum; 62.5 mW; LiNbO3; Nd:YAG fundamental wavelength; SH power; YAG:Nd; YAl5O12:Nd; bulk PPLN; bulk periodically poled LiNbO3; contact electrode method; fabrication cost; fabrication process; frequency doubling; green light; input fundamental power; interaction length; periodic electrode; substrate surfaces; temperature dependence; uniformity; Contacts; Crystals; Electrodes; Fabrication; Ferroelectric materials; Glass; Nonlinear optics; Optical harmonic generation; Optical surface waves; Resists;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1997. LEOS '97 10th Annual Meeting. Conference Proceedings., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3895-2
DOI :
10.1109/LEOS.1997.630575
