Controlling the attenuation of leaky modes in multimode W-type photonic crystal fibers in the infrared wavelength domain

Abstract

© 2019 Astro Ltd. Leaky mode losses for a range of parameters such as the spacing and size of air holes, as well as the wavelength in W-type multimode glass photonic crystal fiber, are reported. Using an effective index approach by numerical solution of the time-independent power flow equation, we obtained that the leaky mode losses increase as the wavelength increases, and this rise of losses is greater in the case of narrower inner cladding. This user-friendly, simple approach of computing leaky losses could be used by experimentalists and system users.