Research Papers

Slow light enabled time and wavelength division demultiplexer in slotted photonic crystal waveguide

[+] Author Affiliations
Preeti Rani, Yogita Kalra, R. K. Sinha

Delhi Technological University, TIFAC-Centre of Relevance and Excellence in Fiber Optics and Optical Communication, Department of Applied Physics, Bawana Road, Delhi-110042, India

J. Nanophoton. 9(1), 093063 (Aug 05, 2015). doi:10.1117/1.JNP.9.093063
History: Received May 12, 2015; Accepted June 26, 2015
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Abstract.  We have proposed a design for slow light with ultraflat dispersion in a slotted photonic crystal waveguide consisting of a hexagonal arrangement of elliptical air holes on a silicon-on-insulator substrate. The proposed structure has low group velocity and low group velocity dispersion with a wide normalized bandwidth range of 0.0089. The proposed structure can be used as an optical buffer for the storage of a large amount of data due to the large value of the normalized delay bandwidth product equal to 0.634. An optimized structure for a slotted photonic crystal has been analyzed for its applications as both a time and wavelength division demultiplexer. Furthermore, the time delay between two adjacent wavelengths (1550 and 1555 nm) is more than that reported earlier.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Preeti Rani ; Yogita Kalra and R. K. Sinha
"Slow light enabled time and wavelength division demultiplexer in slotted photonic crystal waveguide", J. Nanophoton. 9(1), 093063 (Aug 05, 2015). ; http://dx.doi.org/10.1117/1.JNP.9.093063


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