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