Optical switches and logic gates based on self-collimated beams in two-dimensional photonic crystals

Optical switches and logic gates based on self-collimated beams in two-dimensional photonic crystals

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 re...

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Veröffentlicht in:Optics express 2007-07, Vol.15 (15), p.9287-9292
Hauptverfasser: Zhang, Yuanliang, Zhang, Yao, Li, Baojun
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Zhang, Yao
Li, Baojun
description 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.
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title Optical switches and logic gates based on self-collimated beams in two-dimensional photonic crystals
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