Optical Broadcasting Employing Incoherent And Low-Coherence Spatial Modes for Bi-Directional Optical Wireless Communications
Journal article, 2021

We introduce recently developed space division multiplexing (SDM)-associated technologies into optical wireless communications (OWC) and propose to use incoherent and low-coherence spatial modes to realize optical broadcasting with reliable performance by mitigating coherent interference. We experimentally demonstrate reconfigurable optical beam steering using a programmable multi-plane light conversion (MPLC)-based mode multiplexer (MMUX) and realize point-to-multi-point optical wireless communications with low-loss up-link optical beam combining and reach extension using multimode fiber (MMF). Both incoherent and low-coherence spatial modes can be generated employing the cost-efficient components such as multimode vertical cavity surface emitting laser (MM-VCSEL) and broadband amplified spontaneous emission (ASE) noise source.

Optical imaging

Optical wireless communication

Broadcasting

Wireless communication

Coherence

Interference

Optical beams

space division multiplexing

Couplings

optical beam combining

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Published in

Journal of Lightwave Technology

0733-8724 (ISSN) 1558-2213 (eISSN)

Vol. 39 Issue 3 p. 833-838

Categorizing

Subject Categories (SSIF 2011)

Telecommunications

Atom and Molecular Physics and Optics

Other Physics Topics

Identifiers

DOI

10.1109/JLT.2020.3044658

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Latest update

2/2/2024 3