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Proceedings Paper

Optical modulator using silicon photonic crystals/nano-montmorillonite
Author(s): Jiu-sheng Li; Jian-rui Li; Xiu-ming Wang
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Paper Abstract

In this paper, a novel compact optical modulator based on silicon photonic crystals /nano-montmorillonite is proposed. The two-dimensional silicon photonic crystal with triangular lattice and a line defect waveguide formed by a missing row of air holes in the Γ -K direction. The lattice constant is a, and the diameter of the holes is d=0.4a. The holes are filled with the nano-montmorillonite electrorheological fluid, which is made of nanometer sized nano-montmorillonite. The light modulation mechanism of the novel modulator is based on a dynamic shift of the photonic band gap. We have investigated its light modulation performance by using the finite-difference time-domain method. The numerical results show that an excellent optical modulator at a wavelength of 1550nm is achieved. The novel modulator has a high extinction ratio (close to -40dB) and small size (around 10μm). It is very suitable for forthcoming photonic integrated circuits.

Paper Details

Date Published: 4 January 2008
PDF: 5 pages
Proc. SPIE 6831, Nanophotonics, Nanostructure, and Nanometrology II, 68311F (4 January 2008); doi: 10.1117/12.759395
Show Author Affiliations
Jiu-sheng Li, China Jiliang Univ. (China)
Jian-rui Li, China Jiliang Univ. (China)
Xiu-ming Wang, China Jiliang Univ. (China)

Published in SPIE Proceedings Vol. 6831:
Nanophotonics, Nanostructure, and Nanometrology II
Xing Zhu; Stephen Y. Chou; Yasuhiko Arakawa, Editor(s)

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