Abstract
We present a photonic-crystal (PC) channel-drop filter (CDF) design based on PC ring resonators. The normalized transmission spectra for single-ring and dual-ring configurations have been investigated using two-dimensional finite-difference time-domain (FDTD) technique in a square-lattice dielectric-rod PC structure. First, we investigate a single ring and we show that backward and forward dropping is possible in the third communication window. Then we add another ring and waveguide to develop a new CDF. This filter consists of an input and three outputs. Our FDTD simulation yields more than 85% efficiency over each output port.
© 2009 Optical Society of America
Full Article | PDF ArticleMore Like This
Zexuan Qiang, Weidong Zhou, and Richard A. Soref
Opt. Express 15(4) 1823-1831 (2007)
M. H. Bitarafan, M. K. Moravvej-Farshi, and M. Ebnali-Heidari
Appl. Opt. 50(17) 2622-2627 (2011)
Sangin Kim, Ikmo Park, Hanjo Lim, and Chul-Sik Kee
Opt. Express 12(22) 5518-5525 (2004)