Open AccessElectro-optically tunable, multi-wavelength optical parametric generators in aperiodically poled lithium niobates
Author(s) -
Y. H. Chen,
Hung-Pin Chung,
Wei Ting Chang,
H. T. Lyu,
J. W. Chang,
Ching-Shiow Tseng
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.028989
Subject(s) - lithium niobate , materials science , optics , wavelength , optoelectronics , fabrication , physics , medicine , alternative medicine , pathology
We report on the design and demonstration of electro-optically tunable, multi-wavelength optical parametric generators (OPGs) based on aperiodically poled lithium niobate (APPLN) crystals. Two methods have been proposed to significantly enhance the electro-optic (EO) tunability of an APPLN OPG constructed by the aperiodic optical superlattice (AOS) technique. This is done by engineering the APPLN domain structure either in the crystal fabrication or in the crystal design process to increase the length or block-number difference of the two opposite-polarity domains used in the structure. Several orders of magnitude enhancement on the EO tuning rate of the APPLN OPGs constructed by the proposed techniques for simultaneous multiple signal wavelength generation over a conventional one has been demonstrated in a near infrared band (1500-1600 nm).