Photonic band gap filter for wavelength division multiplexer.
An optical multiplexer-demultiplexer based on an index-confined photonic band gap waveguide is proposed. The dropping of electromagnetic waves having a given frequency or a certain frequency band is obtained via a phase-shifted grating obtained by breaking the uniform period sequence to include a defect layer. The selective filtering properties of the proposed structure are simulated by means of a computer code relying on a bi-directional beam propagation method based on the method of lines.
D'Orazio
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A
De Sario
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M
Petruzzelli
Vincenzo
V
Prudenzano
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