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http://dx.doi.org/10.7236/JIIBC.2015.15.2.221

Implementation of Nano-Scale Grating-Assisted Coupler with Polarization-Insensitivity using Double-Sandwiched Guide  

Ho, Kwang-Chun (Dept. of ICs Engineering, Hansung University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.15, no.2, 2015 , pp. 221-227 More about this Journal
Abstract
The polarization characteristics of nano-scale grating-assisted polarization-insensitive coupler (GA-PIC) consisted of double sandwiched rib-type layers are evaluated in detail by using modal transmission-line theory (MTLT) based on equivalent network. To obtain the polarization-insensitive condition of GA-PIC, the coupling lengths as a function of the refractive index and thickness of sandwiched rib-type layer as well as the grating thickness and period are analyzed for quasi-TE and quasi-TM modes. The numerical results show that the GA-PIC with hundreds of nanometer scale is realized by properly choosing structural and material parameters of double sandwiched layers and grating.
Keywords
Polarization-Insensitive Coupler; Equivalent Network; Double Sandwiched Waveguide;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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