Dense wavelength division demultiplexing using photonic crystal waveguides based on cavity resonance |
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Authors: | Nikhil Deep Gupta Vijay Janyani |
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Institution: | Department of Electronics and Communication Engineering, Malaviya National Institute of Technology, Malviya Nagar, JLN Marg, Jaipur 302017, Rajasthan, India |
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Abstract: | We demonstrated a photonic crystal waveguide based dense wavelength division multiplexing device using the resonances in the cavities. The demultiplexing is achieved through filtering. This filtering is achieved by varying the radii of the surrounding holes of the cavity, which in turn changes the resonant wavelength of the cavity. The four wavelengths demultiplexed in the design are 0.8 nm apart in the optical region centered on 1.55 and 1.56 μm. The device designed and simulated has easy to realize structure as well as high quality factor. Two-dimensional Finite Difference Time Domain (FDTD) is chosen to do the simulation of this work. |
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Keywords: | Photonic crystal (PhC) Photonic crystal cavity resonances Dense wavelength division demultiplexer (DWDM) Quality factor Channel spacing |
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