Imaging Components, Systems, and Processing

Slow light photonic crystal waveguides with large delay-bandwidth product

[+] Author Affiliations
Mohammad Pourmand, Arash Karimkhani

Tafresh University, Faculty of Electrical Engineering, Beginning of Tehran Road, Tafresh, Markazi 3951879611, Iran

Mohammad Kazem Moravvej-Farshi

Tarbiat Modares University, Faculty of Electrical and Computer Engineering, Advanced Device Simulation Lab., Nasr, Jalal AleAhmad Avenue, Tehran 14115194, Iran

Opt. Eng. 55(12), 123108 (Dec 20, 2016). doi:10.1117/1.OE.55.12.123108
History: Received July 9, 2016; Accepted November 28, 2016
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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, ng, 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 1020  m1s2, and the normalized delay—bandwidth product of 0.448—is attained at ng=14.8 by this structure. This study uses plane wave expansion and finite-difference time domain methods.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Mohammad Pourmand ; Arash Karimkhani and Mohammad Kazem Moravvej-Farshi
"Slow light photonic crystal waveguides with large delay-bandwidth product", Opt. Eng. 55(12), 123108 (Dec 20, 2016). ; http://dx.doi.org/10.1117/1.OE.55.12.123108


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