Large-scale integrated reconfigurable orbital angular momentum mode multiplexer
Abstract
Recent experiments in orbital angular momentum multiplexing have demonstrated its potential for improving the link capacity in optical interconnection networks. Meanwhile, compact photonic integrated orbital angular momentum (de-)multiplexing devices are needed to address requirements such as high scalability, fast configurability, low cost and low power consumption. Here we report on a large-scale integrated tunable orbital angular momentum mode multiplexer, which supports up to 20 multiplexed orbital angular momentum modes over 16 wavelength channels with 30 GHz channel spacing. A testbed of nine multiplexed OAM beams encoded with 28 Gbaud 16-quadrature amplitude modulation signal is demonstrated, achieving a 1.008 Tbit s-1 aggregated rate with low penalty and sub-microsecond reconfiguration rate of the orbital angular momentum mode. This device offers an effective solution for replacing bulky diffractive optical elements, paving the way for orbital angular momentum multiplexing in optical interconnection networks.
Cite
@article{arxiv.2008.00680,
title = {Large-scale integrated reconfigurable orbital angular momentum mode multiplexer},
author = {Ning Zhang and Mirco Scaffardi and Charalambos Klitis and Muhammad N. Malik and Veronica Toccafondo and Francesco Fresi and Jiangbo Zhu and Xinlun Cai and Siyuan Yu and Antonella Bogoni and Marc Sorel},
journal= {arXiv preprint arXiv:2008.00680},
year = {2020}
}
Comments
8 pages, 5 Figures, to be submitted to Nature Communications