Modeling and design of 2D photonic crystal based Y type dual band wavelength demultiplexer |
| |
| Authors: | R K Sinha Swati Rawal |
| |
| Institution: | (1) Department of Applied Physics, Centre of Relevance and Excellence in Fiber Optics and Optical Communication, Faculty of Technology, Delhi College of Engineering, University of Delhi, Bawana Road, Delhi, 110042, India |
| |
| Abstract: | In this paper, photonic bandgap (PBG) induced wave guiding application of photonic crystals is exploited to design Dual Band
Wavelength Demultiplexer (DBWD) for separating two telecommunication wavelengths, 1.31 and 1.55 μm. Two designs that use silicon
rods in air and embedded air holes in silicon are realized for this purpose. Plane wave expansion (PWE) method and two dimension
Finite Difference Time Domain (FDTD) methods are used to design and analyze the DBWD in Y type photonic crystal structure.
Numerical analysis indicates that these designs enable the separation of two wavelengths with very high optical power extinction
ratios. Other filter parameters like transmittance and quality factor are also calculated to confirm superior performance
of the proposed design of photonic crystal based DBWD. |
| |
| Keywords: | Photonic crystal Photonic bandgap materials Linear defect waveguide Wavelength demultiplexer |
| 本文献已被 SpringerLink 等数据库收录！ |
|
