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Analysis of Ternary Layer Photonic Band Gap Tunable Filters for Wavelength Division Multiplexing Applications

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In this paper, we have proposed a ternary layer photonic band gap structure as a versatile optical filter for various WDM applications. The design of a versatile optical filter has been done using Photonic Band Gap (PBG) structure for all Wavelength Division Multiplexing (WDM) applications including Coarse Wavelength Division Multiplexing (CWDM) and Dense Wavelength Division Multiplexing (DWDM). The proposed optical filter is a one-dimensional ternary periodic structure with a linearly periodic refractive index profile. It can be tuned by varying lattice parameters and angle of incidence. The filters are designed in the S band of EM spectrum, around 1310 nm wavelength, which can be used in CWDM applications at transmitter and receiver side of the network. Similarly in the C-Band of EM spectrum, near 1550 nm wavelength, filter with 0.4 nm pass band are designed. For DWDM applications, separation between neighboring wavelength channels is less than 1 nm and so the width of the pass band of an individual filter must be less than 0.5 nm. Therefore the filter designed for the C band can be used in DWDM applications. Thus the proposed filter design technique covers all the different ranges of WDM applications.
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Keywords: COARSE WAVELENGTH DIVISION MULTIPLEXING (CWDM); DENSE WAVELENGTH DIVISION MULTIPLEXING (DWDM); PHOTONIC BAND GAP (PBG)

Document Type: Research Article

Publication date: April 1, 2017

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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