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Title of Journal: Appl Phys A

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Abbravation: Applied Physics A

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Springer Berlin Heidelberg

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DOI

10.1002/2015JC011001

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ISSN

1432-0630

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Chirped photonic crystal with different symmetries

Authors: Brahm Raj Singh Swati Rawal R K Sinha
Publish Date: 2016/05/23
Volume: 122, Issue: 6, Pages: 605-
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Abstract

In the present paper we have carried out analysis of asymmetric light propagation in a chirped photonic crystal waveguide The designed structures have hexagonal arrangement and square arrangement of silicon rods in air substrate Dimensions of the defect rods are tailored so that the proposed design structure works as an optical isolator The transmission analysis of the structure reveals that it can act as an optical diode We have plotted the extinction ratio and transmission analysis graphs for the structure and it has been observed that the maximum output is obtained for telecom wavelength of 155 μm Dispersion curves are obtained using the plane wave expansion method and the transmission is simulated using finite element method The proposed structures are applicable for photonic integrated circuits due to their simple and clear operating principleThis work is carried out at Jaypee Institute of Information Technology Noida and “TIFAC Centre of Relevance and Excellence in Fiber Optics and Optical Communication in Delhi Technological University Formerly Delhi College of Engineering Delhi University Delhi” through the “Mission Reach” program of Technology Vision2020 Government of IndiaThe authors Swati Rawal and Brahm Raj Singh acknowledge JIIT Noida for providing research support for the present research work The authors gratefully acknowledge the initiatives and support toward establishment of “TIFAC Centre of Relevance and Excellence in Fiber Optics and Optical Communication at Delhi Technological University Formerly Delhi College of Engineering Delhi” through “Mission REACH” program of Technology Vision2020 Government of India

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