title: Narrowband optical filters suitable for various applications in optical communications.
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.
authors.affiliation: Department of Electrical Engineering, Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran.
authors.forename: Ghafar
authors.initials: G
authors.lastname: Darvish
authors.forename: M K
authors.initials: MK
authors.lastname: Moravvej-Farshi
authors.forename: Abbas
authors.initials: A
authors.lastname: Zarifkar
authors.forename: Kamyar
authors.initials: K
authors.lastname: Saghafi