New proposal for a two-channel optical multiplexer based on photonic crystal fibers

Abstract

An innovative idea for a photonic crystal fiber-based 2 × 1 power beam combiner is presented. This research introduces an optical multiplexer (MUX) that supports wavelength multiplexing at 1.46 and 1.48 µm using a photonic crystal fiber topology. The multiplexer is a component that combines the specific wavelengths into the group of wavelengths in a network. This paper aims to create a new design structure for an optical Multiplexer based on photonic crystal fibers while optimizing the geometrical parameters and the multiplexer device and illustrating how a PCF structure could combine several optical signals into a group of signals in a single fiber. High-performance waveguides known as photonic crystal fibers (PCF) are constructed from a microstructured combination of substances with varying refractive indices. The PCF Mux design relies on appropriate PCF structure improvements and the replacement of specific air-hole sections with pure silica to manage the light coupling between the cores over the PCF axis; in comparison to traditional fiber, they have a shorter coupling length between close core and more design flexibility.