Design Optimize Interference Dielectric Edge Filter

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2013 by IJETT Journal
Volume-4 Issue-4                       
Year of Publication : 2013
Authors : Elham Jasim Mohammad


Elham Jasim Mohammad. "Design Optimize Interference Dielectric Edge Filter". International Journal of Engineering Trends and Technology (IJETT). V4(4):786-790 Apr 2013. ISSN:2231-5381. published by seventh sense research group


An Edge filter is a multilayer coating with a substantial pass - band on eit her designated side of the stop-band. The Edge filter is meant to have a crisp boundary between wavelength regions that are reflected and those that are transmitted. In this paper, design, optimize, and measurements of an Edge filter is presented. TiO 2 /Si O 2 materials system provides a promising solution for realizing low cost lasers, detectors, and optical modulators operating in the telecommunications, by fabricating these devices on Fusedsilica substrates. An extensive comparison of the response obtained from initial design and the final optimization design is presented. In these study results we demonstrate a dielectric multilayer filter. TiO 2 (refractive index n =2.346 ) and SiO 2 (refractive index n =1.485 ) edge filter design with a controlled transmission , reflectivity, absorption, optical admittance, electric field, and dispersion in the wavelength range 300 - 1000n m.


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Edge Filter, Long - Pass, Short - Pass, Quarter Wave Stack , Group Delay, Group Delay Dispersion.