Applications for wavelength division multiplexers based on topological photonic crystals
Yuhang Ruan, Xinyue Qian, Hai‐Xiao Wang, Zheng-Da Hu, Yuting Yang, Jicheng Wang, Xiaopeng Shen, Yi-Xiang Wang
Abstract
Topological edge states have an important role in optical modulation with potential applications in wavelength division multiplexers (WDMs). In this paper, 2D photonic crystals (PCs) with different rotation angles are combined to generate topological edge states. We reveal the relationship between the edge states and the rotation parameters of PCs, and further propose a WDM to realize the application of adjustable beams. Our findings successfully reveal the channel selectivity for optical transmission and provide a flexible way to promote the development of topological photonic devices.
Topics & Concepts
MultiplexerWavelength-division multiplexingPhotonicsPhotonic crystalEnhanced Data Rates for GSM EvolutionOpticsTopology (electrical circuits)Optical add-drop multiplexerModulation (music)Transmission (telecommunications)Division (mathematics)WavelengthRotation (mathematics)Channel spacingOptoelectronicsMaterials scienceMultiplexingOptical performance monitoringPhysicsComputer scienceTelecommunicationsMathematicsCombinatoricsArithmeticArtificial intelligenceAcousticsPhotonic Crystals and ApplicationsTopological Materials and PhenomenaMetamaterials and Metasurfaces Applications