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Photonic crystal band-stop filter with monomode resonator

B. LAZĂR1, P. STERIAN1,*

Affiliation

  1. Academic Center for Optical Engineering and Photonics, Faculty of Applied Sciences, University “Politehnica” Bucharest, Romania

Abstract

In this paper, the behavior of a band-stop filter with monomod resonator, having potential applications in photonic crystal microcircuits, is studied using “coupled mode theory” which is an approximate method that allows relatively simple derivations of optimal design parameters. Coupled cavities appear everywhere in optical circuits. In many cases, they induce parasitic effects like important reflections back to the source. In other situations, if they are carefully tuned, optical devices consisting of micro cavities and guides can act as filters. The purpose of this article is to establish a procedure for designing efficient stop band filters with monomod, laterally coupled, cavities using a combination of analytical formula and numerical simulations..

Keywords

Photonic crystals, Waveguides, Cavities, Reflection, Transmission coefficients.

Submitted at: Dec. 15, 2009
Accepted at: Jan. 20, 2010

Citation

B. LAZĂR, P. STERIAN, Photonic crystal band-stop filter with monomode resonator, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 1, pp. 24-30 (2010)