Open AccessOptical switches and logic gates based on self-collimated beams in two-dimensional photonic crystals
Author(s) -
Yuanliang Zhang,
Yao Zhang,
Baojun Li
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.009287
Subject(s) - collimated light , optics , photonic crystal , beam splitter , photonic integrated circuit , photonics , finite difference time domain method , physics , optoelectronics , laser
A device for optical switches and logic gates is proposed in two-dimensional photonic crystals based on self-collimated beams. The main structure of the device is a line-defect-induced 3 dB splitter. Investigations show that the phase response of the self-collimated beams in the photonic crystals resembles that of the plane waves propagated in a homogeneous medium. Operating principle, as revealed by both theoretical calculation and finite-difference time-domain simulation, is based on an interference of reflected and transmitted beams of incident self-collimated beams. This device is potentially applicable for photonic integrated circuits.