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Optical Engineering

Slow light photonic crystal waveguides with large delay-bandwidth product
Author(s): Mohammad Pourmand; Arash Karimkhani; Mohammad Kazem Moravvej-Farshi
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Paper Abstract

We present a slow light photonic crystal waveguide. In our structure design, we displace some air holes perpendicular to the line defect. By tuning the group index, n g , from 11.8 to 40, we attain a wide bandwidth varying from 15.9 to 46.9 nm. The group velocity dispersion is kept below 10 20    m 1 s 2 , and the normalized delay—bandwidth product of 0.448—is attained at n g = 14.8 by this structure. This study uses plane wave expansion and finite-difference time domain methods.

Paper Details

Date Published: 20 December 2016
PDF: 6 pages
Opt. Eng. 55(12) 123108 doi: 10.1117/1.OE.55.12.123108
Published in: Optical Engineering Volume 55, Issue 12
Show Author Affiliations
Mohammad Pourmand, Tafresh Univ. (Iran)
Arash Karimkhani, Tafresh Univ. (Iran, Islamic Republic of)
Mohammad Kazem Moravvej-Farshi, Tarbiat Modares Univ. (Iran)


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