Nanoscale effects on multichannel add/drop filter based on 2-D photonic crystal ring-resonator heterostructure
محورهای موضوعی : Journal of Theoretical and Applied Physics
Hamed Pezeshki
1
(
Department. of Electrical Engineering, Science and Research Branch, Islamic Azad University
)
Vahid Ahmadi
2
(
Department of Electrical and Computer Engineering, Tarbiat Modares University
)
کلید واژه: Photonic crystal, Multichannel add/drop filter, Ring, resonator, Heterostructure, Nanoscale effect, PACS, 42.70.Qs, 42.79.Ci, 42.79.Sz, 42.82.Et,
چکیده مقاله :
AbstractIn this paper, we propose a heterostructure multichannel add/drop filter based on 2-D photonic crystal ring-resonator in which, add and drop operations are accomplished by coupling between two W1 waveguides. The wavelength spacing of 10.3 nm, as well as the average cross-talk of −37.5 dB, are the other features of the proposed filter. Furthermore, nanoscale effects on the filter's performance including wavelength spacing, cross-talk amount, and dynamic response are considered. By taking into account these effects, the minimum wavelength spacing of 12 nm is obtained, whereas the filter’s cross-talk has an average of −40 dB. Simulations are performed using 2-D finite-difference time-domain calculations.
