Free-Space Optical Node Interconnect Layout for Line-of-Sight Scaling
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Solution Overview
Problem
Existing datacenter systems face challenges in achieving high bandwidth and low latency interconnections between a large number of computing nodes, making it impractical to use wired connections due to the massive number of connections required.
Innovation Solution
Utilizing free-space optics with optical modules and transceivers to create a network fabric that maintains a line of sight between computing nodes, allowing for high bandwidth and low latency communications without the need for extensive wired connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If wired connections are used to interconnect a large number of computing nodes, then high bandwidth and low latency can be achieved, but the device complexity and number of connections become impractically large
Solution Approach 1:
The patent replaces physical wired connections with free-space optical communication using light beams. Optical transceivers transmit data through air or vacuum without physical cables, eliminating the mechanical connection infrastructure while maintaining high bandwidth and low latency performance.
Solution Approach 2:
The patent transitions from two-dimensional planar wiring to three-dimensional spatial optical paths. By utilizing vertical stacking and angular positioning of optical modules, the system creates multiple communication dimensions in space, allowing numerous nodes to interconnect without requiring proportional increases in physical connection density.
2Area of stationary object
If computing nodes are densely packed to optimize space, then datacenter efficiency improves, but maintaining line of sight for optical communication becomes difficult
Solution Approach 1:
The patent employs adjustable and reconfigurable optical modules that can dynamically change their orientation and positioning. Motors or actuators enable the optical components to rotate and tilt, allowing the system to adapt to varying node densities and maintain clear line of sight paths even as the physical layout changes.
Solution Approach 2:
The patent divides the datacenter into multiple optical zones or layers, with each layer having its own set of optical transceivers. This segmentation allows independent optimization of line of sight within each zone while maintaining overall high density, as each segment can be configured without affecting others.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables efficient data transmission with high bandwidth and low latency by preserving a clear line of sight between optical modules and transceivers, optimizing node density and reducing the complexity of physical connections.
Implementation Method 1
free-space optical communications
Implementation Method 2
Each optical module of the plurality of optical modules has a line of sight to an area including one or more optical transceivers
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
A system for using free-space optics to interconnect a plurality of computing nodes can include a plurality of optical transceivers that facilitate free-space optical communications among the plurality of computing nodes. The system may ensure a line of sight between the plurality of computing nodes and the optical transceivers to facilitate the free-space optical communications. The line of sight may be preserved by the position or placement of the computing nodes in the system. The position or placement of the computing nodes may be achieved by using different shaped enclosures for holding the computing nodes.