A new narrowband multilayer DWDM optical filter in the order of defected Fibonacci sequence

作者：Khaleel S; Gurel C S^*

来源：Journal of Electromagnetic Waves and Applications, 2012, 26(14-15): 1930-1938.

DOI：10.1080/09205071.2012.721185

The self-similar narrow stop-bands in the reflectivity spectrum of the structures in the order of generalized Fibonacci sequence are utilized in this study. A multilayer structure in the order of generalized Fibonacci sequence is defected by a proper layer to get narrow stop-bands identical to channels of dense wavelength division multiplexing (DWDM) filter with ITU-T standard (100 GHz grid). The index profile of the defected structure is apodized and index-matched to eliminate the sidelobes between the stop-bands. After these modifications, a thin, new DWDM filter is designed having significantly suppressed sidelobes.

• 出版日期2012