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Optical Engineering • Open Access

Photonic crystal ring resonator-based add drop filters: a review
Author(s): Savarimuthu Robinson; Rangaswamy Nakkeeran

Paper Abstract

The add drop filter (ADF) is one of the most significant devices for coarse wavelength division multiplexing (CWDM) systems to add and/or drop a required channel individually from multiplexed output channels without disturbing other channels. The important parameters of the ADF are coupling efficiency, dropping efficiency, passband width and Q factor. Photonic crystal (PC)-based optical devices have attracted great interest due to their compactness, speed of operation, long life period, suitability for photonic integrated circuits, and future optical networks. Here, an extensive overview of a photonic crystal ring resonator (PCRR)-based ADF using a different shape of ring resonator is presented, and its corresponding functional parameters are discussed. Finally, the designed circular PCRR-based ADF for an ITU-T G 694.2 CWDM system is presented. Approximately 100% of coupling efficiency and dropping efficiency, 114.69 of Q factor, and 13 nm of passband width is obtained through simulation, which outperforms the reported one.

Paper Details

Date Published: 12 June 2013
PDF: 12 pages
Opt. Eng. 52(6) 060901 doi: 10.1117/1.OE.52.6.060901
Published in: Optical Engineering Volume 52, Issue 6
Show Author Affiliations
Savarimuthu Robinson, Mount Zion College of Engineering and Technology (India)
Rangaswamy Nakkeeran, Pondicheery Engineering College (India)

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