Narrowband optical filters suitable for various applications in optical communications |
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Authors: | Darvish Ghafar Moravvej-Farshi M K Zarifkar Abbas Saghafi Kamyar |
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Affiliation: | Department of Electrical Engineering, Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran. |
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Abstract: | We propose three types of narrowband optical filters based on a Fox-Smith resonator. We demonstrate that by choosing the appropriate combination of coating materials on each prism facet, one can design either a high reflectance or a high transmittance optical filter, suitable for low bit rate optical communication applications with International Telecommunication Union-Telecommunication Standardization Sector (ITU-T) standards. We also show the possibility of designing an optical filter having a desirable finite reflectance/transmittance ratio with simultaneous peaks at ITU-T standard wavelengths. Such filters could be suitable for wavelength tuning applications. |
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