All-Optical Switching in Ultrashort Photonic Crystal Couplers Modified Y-branch Structure
1Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran
2Department of Electronics, Tabriz Branch, Islamic Azad University, Tabriz, Iran
Cite as: Masoud Zahravi, Mitra Zahravi, Hamed Alipour-Banaei. All-Optical Switching in Ultrashort Photonic Crystal Couplers Modified Y-branch Structure, nano Online. (2016). DOI: https://doi.org/10.1515/nano.0031.2014-0071
Cite as: Masoud Zahravi, Mitra Zahravi, Hamed Alipour-Banaei. All-Optical Switching in Ultrashort Photonic Crystal Couplers Modified Y-branch Structure, Journal of Optical Communications. 36, 205 (2015). DOI: https://doi.org/10.1515/joc-2014-0071
Abstract
In this paper, an all-optical switch based on photonic crystal directional coupler has been simulated and analyzed by the finite difference time domain (FDTD) method. An ultra small 3-channel wavelength division demultiplexer based on 2D photonic crystal was modified into all-optical switch suitable for integration. The output wavelengths of designed structure can be tuned for communication applications (around 1.5 µm, 1.4 µm, 1.3 µm) by locating suitable defect parameters in the corner of each resonance cavity and input waveguides. The bandwidth of each channel is about 1 nm.
Keywords: photonic crystal; band gap; switch
Keywords: 42.70.Qs; 42.79.Sz; 47.11.Bc
