Title :
Optical multiplication using a bisected intersecting waveguide
Author :
Chowdhury, Aref ; McCaughan, Leon
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
fDate :
5/1/2000 12:00:00 AM
Abstract :
We present an analysis of a bisected intersecting waveguide in periodically poled lithium niobate that can produce and isolate the second-order optical product E(/spl omega//sub 1/+/spl omega//sub 2/)/spl sim/E/sub 1/(/spl omega//sub 1/)E/sub 2/(/spl omega//sub 2/) free from the near degenerate second harmonics. Model calculations of such a device fabricated in quasi-phase matched (QPM) LiNbO/sub 3/ predict a conversion efficiency of /spl ap/1.5%/W, about 15% that of a straight waveguide of the same length, and a crosstalk of /spl lsim/-30 dB.
Keywords :
dielectric polarisation; lithium compounds; optical crosstalk; optical logic; optical phase matching; optical waveguide theory; optical waveguides; LiNbO/sub 3/; bisected intersecting waveguide; conversion efficiency; crosstalk; near degenerate second harmonics; optical multiplication; periodically poled lithium niobate; quasi-phase matched; second-order optical product; straight waveguide; Fiber nonlinear optics; Frequency conversion; Nonlinear optics; Optical crosstalk; Optical filters; Optical mixing; Optical pumping; Optical saturation; Optical waveguides; Optical wavelength conversion;
Journal_Title :
Lightwave Technology, Journal of
