English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

An orbital-angular-momentum (OAM) mode-group multiplexing (MGM) scheme basedon a graded-index ring-core fiber (GIRCF) is proposed, in which a single-inputtwo-output (or receive diversity) architecture is designed for each MG channeland simple digital signal processing (DSP) is utilized to adaptively resist themode partition noise resulting from random intra-group mode crosstalk. There isno need of complex multiple-input multiple-output (MIMO) equalization in thisscheme. Furthermore, the signal-to-noise ratio (SNR) of the received signalscan be improved if a simple maximal ratio combining (MRC) technique is employedon the receiver side to efficiently take advantage of the diversity gain ofreceiver. Intensity-modulated direct-detection (IM-DD) systems transmittingthree OAM mode groups with total 100-Gb/s discrete multi-tone (DMT) signalsover a 1-km GIRCF and two OAM mode groups with total 40-Gb/s DMT signals overan 18-km GIRCF are experimentally demonstrated, respectively, to confirm thefeasibility of our proposed OAM-MGM scheme.

optics express

Orbital-angular-momentum mode-group multiplexed transmission over a  graded-index ring-core fiber based on receive diversity and maximal ratio  combining