Design and Simulation of a Waveguide Division De-multiplexer (DWDM) for Communication Application

Majlesi Journal of Telecommunication Devices

مقاله 1، دوره 8، شماره 1، خرداد 2019، صفحه 1-5   

نوع مقاله: Articles

نویسندگان

Yadollah Shahamat؛ Mohammad Vahedi^*

Iran University of Science and Technology

چکیده

We design and simulate an efficient wavelength division demultiplexer (WDDM) based on photonic crystal without using either specific materials or complexities in the fabrication process. The photonic crystal consists of a square lattice of Chalcogenide glass with  embedded in air in two dimensions. The structure involves three cavities around the boundary of the waveguide with specified distance from each other for wavelength selection. For obtaining resonant frequencies of the cavities, two dimensional Finite-Difference-Time-Domain (FDTD) simulation is used. Through simulations, characteristic resonant wavelengths of the cavities are obtained in terms of the size of the coupling rods and the inner rod of the cavity. To show the design flexibility of the proposed structure, a WDDM is designed to divide a common input containing wavelengths  and into three distinct ports with a high efficiency..
 

کلیدواژه‌ها

Photonic Crystal؛ Optical Wavelength Division Demultiplexer؛ fabrication process

مراجع

[1] E. Yablonovitch, “Inhibited spontaneous emission in solid state physics and electronics, ” Physical Review Letters, 58, 2059–2062, 1987.

[2] J.D. Joannopoulos, R.D. Meade and J.N. Winn, “Photonic Crystals Molding the Flow of Light,” Princeton University Press, Princeton, NJ, USA, 1995.

[3] E. Centeno and D. Felbacq, “Guiding waves with photonic crystals, ” Optics Communications, 160 35, 57–60, 1999.

[4] T. Baba, N. Fukaya and J. Yonekura, “Observation of light propagation in photonic crystal optical waveguides with bends, ” Electronics Letters, 654–655, 1999.

[5] P.R. Villeneuve, D.S. Abrams and S. Fan, J. D. Joannopoulos, “Single-mode waveguide microcavity for fast optical switching Optics, ” Letters, 2017–2019, 1996.

[6] P. R. Villeneuve, S. Fan and J. D. Joannopoulos, “Microcavities in photonic crystals: mode symmetry, tunability, and coupling efficiency, ” Physical Review B, 54, 7837–7842, 1996.

[7] E. Centeno, B. Guizal and D. Felbacq, “Multiplexing & demultiplexing with photonic crystal,” J. Opt. A: Pure Appl. Opt, 1, 1999.

[8] A. Sharkawy, S. Shi and D. W. Prather, “Multichannel wavelength division multiplexing with photonic crystals,” Appl. Opt, 40, 2247-2252, 2001.

[9] M. Koshiba, “Wavelength division multiplexing and demultiplexing with photonic crystal waveguide couplers,” J. Lightwave Technol, 19 1970-1975, 2001.

[10] D. Pustai, A. Sharkawy, S. Shouyuan and D. W. Prather, “Tunable photonic crystal microcavities,” Appl. Opt, 41, 5574-5579, 2002.

[11] S. Kim, I. Park, H. Lim and C. S. Kee, “Highly efficient photonic crystal-based multichannel drop filters of three-port system with reflection feedback,” Opt. Express, 5518-5525, 2004.

[12] J. Zimmermann, M. Kamp, A. Forchel and R. Marz, “Photonic crystal waveguide directional couplers as wavelength selective optical filters,” Opt. Commun, 230, 387–392, 2004.

[13] Ch.Yang Liu and L.Wen Chen, “Tunable Channel Drop Filter in a Two-Dimensional Photonic Crystal Modulated by a Nematic Liquid Crystal,” Journal of Nanomaterials, 1–6, 2006.

[14] K. AOKI, S. NODA and T. BABA, “Roadmap on Photonic Crystals,” Kluwer Academic Publishers, 2003.

[15] A. Taflove and S. C. Hagness, “The Finite Difference Time Domain Method,” Artech House, Boston, Mass, USA, 1998.

[16] M. Koshiba, Y. Tsuji and S. Sasaki, “High-performance absorbing boundary conditions for photonic crystal waveguide simulations,” IEEE Microwave and Wireless Components Letters, 11 152–154, 2001.