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Optical Engineering

Design of reconfigurable optical add/drop multiplexer based on two-dimensional photonic crystals
Author(s): Hongliang Ren; Weisheng Hu; Yaohui Jin; Chun Jiang
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Paper Abstract

A reconfigurable optical add/drop multiplexer (R-OADM) device is proposed based on 2-D photonic crystals (2-D PCs) with a triangular lattice of air holes. It consists of channel add/drop filters, two bends with 120-deg bending angles, and a 2×2 directional coupler switch. Chirp structures are introduced in the directional coupler switch to improve its extinction ratio. At λ=1550 nm, the device is ultracompact with a net footprint 30×22 µm, excluding its external device. It is far smaller in size than other corresponding devices implemented through ring resonators. The device is numerically calculated by the finite-difference time-domain (FDTD) method, and simulation results confirm that the R-OADM device can be used for dynamically wavelength routing.

Paper Details

Date Published: 1 December 2008
PDF: 6 pages
Opt. Eng. 47(12) 123001 doi: 10.1117/1.3036938
Published in: Optical Engineering Volume 47, Issue 12
Show Author Affiliations
Hongliang Ren, Shanghai Jiao Tong Univ. (China)
Weisheng Hu, Shanghai Jiao Tong Univ. (China)
Yaohui Jin, Shanghai Jiao Tong Univ. (China)
Chun Jiang, Shanghai Jiao Tong Univ. (China)

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