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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Solid-state 360° optical beamforming for reconfigurable multicast optical wireless communications.

Shihao Zeng, Yanfeng Zhang, Junyi Liu

|May 9, 2023

Summary

This summary is machine-generated.

We developed a novel 360° optical beamforming scheme for reconfigurable multicast in optical wireless networks. This system enables simultaneous connections from one source rack to multiple destination racks, enhancing data center interconnects.

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Last Updated: Jul 31, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Published on: March 20, 2017

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

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Area of Science:

Optical communication
Data center networking

Background:

Optical wireless communication offers low latency for data center interconnects.
Multicast is crucial for improving data center network throughput, latency, and resource efficiency.

Purpose of the Study:

To enable reconfigurable multicast in data center optical wireless networks.
To propose a novel 360° optical beamforming scheme.

Main Methods:

Utilized the superposition principle of orbital angular momentum modes for beamforming.
Experimentally demonstrated the scheme with solid-state devices in a hexagonal rack formation.
Employed 70 Gb/s on-off-keying modulations for each link.

Main Results:

Successfully established simultaneous connections from a source rack to multiple adjacent racks.
Achieved bit error rates below 10^-6 at link distances of 1.5-m and 2.0-m.
Demonstrated the feasibility of reconfigurable multicast in optical wireless data center networks.

Conclusions:

The proposed 360° optical beamforming scheme effectively supports reconfigurable multicast in data center optical wireless networks.
This technology enhances connectivity and resource utilization within data centers.