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Active Photonic Crystals Based multiplexer

Published online by Cambridge University Press:  01 February 2011

Principia Dardano ,
Vito Mocella ,
Luigi Sirleto ,
Luigi Moretti  and
Ivo Rendina
Principia Dardano
Affiliation:
vito.mocella@na.imm.cnr.it, IMM-CNR, Napoli, via Pietro Castellino, 111, napoli, italia, 80131, Italy
Vito Mocella
Affiliation:
vmocella@na.imm.cnr.it, Consiglio Nazionale delle Ricerche (CNR), Istituto per la Microelettronica e Micrositemi (IMM), via Pietro Castellino, 111, Napoli, 80131, Italy
Luigi Sirleto
Affiliation:
lsirleto@na.imm.cnr.it, Consiglio Nazionale delle Ricerche (CNR), Istituto per la Microelettronica e Micrositemi (IMM), via Pietro Castellino, 111, Napoli, 80131, Italy
Luigi Moretti
Affiliation:
lmoretti@na.imm.cnr.it, Consiglio Nazionale delle Ricerche (CNR), Istituto per la Microelettronica e Micrositemi (IMM), via Pietro Castellino, 111, Napoli, 80131, Italy
Ivo Rendina
Affiliation:
ivo.rendina@na.imm.cnr.it, Consiglio Nazionale delle Ricerche (CNR), Istituto per la Microelettronica e Micrositemi (IMM), via Pietro Castellino, 111, Napoli, 80131, Italy
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Abstract

In the last years, in order to achieve active tuning of photonic crystals devices, the possibility to use liquid crystal inside photonic crystals has been explored.

On this line of argument, in this paper, we numerically investigate a tunable T-shaped waveguide diplexer, based on a two-dimensional square lattice photonic crystal composed of silicon rods in a liquid crystals. We prove that complete splitting of the entire input wavelengths range in two sub-ranges symmetrical with respect to the middle (switching) wavelength, and propagating in right and left arms respectively, can be achieved. Moreover, changing the refractive index of liquid crystals by electro-optical effect, a tuning of switching wavelength of about 60 nm can be obtained.

Keywords

microstructureopticalSi
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 934: Symposium I – Silicon-Based Microphotonics , 2006 , 0934-I09-15
Copyright
Copyright © Materials Research Society 2006

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References

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