Optical Path Overlap in Multi-Node Computing Systems
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Solution Overview
Problem
Existing optically coupled multi-node computing systems face challenges in efficiently managing optical signals across multiple nodes, particularly in terms of signal propagation, switching, and interference within integrated circuits.
Innovation Solution
The proposed apparatus includes an integrated circuit with multiple nodes optically coupled to an optical network featuring overlapping optical paths that propagate guided modes around closed paths. These paths are fabricated within layers of the integrated circuit and are designed to overlap at specific locations without switching optical signals, thereby minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If optical paths are overlapped in integrated circuit layers to increase bandwidth, then communication bandwidth is improved, but signal interference increases
Solution Approach 1:
The patent utilizes multiple layers in the integrated circuit to route optical paths in three-dimensional space. Optical paths that would interfere if placed in the same plane are separated into different layers, allowing them to overlap in projection while remaining physically separated. This dimensional transition enables increased bandwidth through multiple overlapping paths without the signal interference that would occur in two-dimensional routing.
Solution Approach 2:
The optical network is segmented into multiple distinct optical paths that can be independently routed through different layers. Each optical path is treated as a separate entity that can be optimized independently, allowing the system to achieve higher overall bandwidth by combining multiple segmented paths while managing interference through their spatial separation in different layers.
2Object-generated harmful factors
If optical paths are routed through multiple layers to reduce interference, then signal interference is reduced, but device complexity increases
Solution Approach 1:
The patent implements a universal layered routing architecture where multiple optical paths share the same layer structure and routing principles. The layered framework serves multiple functions simultaneously: it provides physical separation to reduce interference, establishes standardized routing patterns, and enables systematic management of complex interconnections. This universal structure reduces the complexity burden that would arise from ad-hoc multi-layer routing designs.
Solution Approach 2:
The patent systematically manages the complexity of multi-layer routing by changing and optimizing key parameters such as layer assignment, path routing patterns, and coupling point locations. By treating the layer structure as a set of adjustable parameters rather than fixed constraints, the design can optimize the balance between interference reduction and complexity management for specific application requirements.
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
This configuration enhances the efficiency of optical signal transmission and reception among nodes, reduces signal interference, and increases the bandwidth of communication within the multi-node computing system.
Implementation Method 1
a first optical path of the optical network including at least a portion fabricated in at least one layer of the integrated circuit and configured to propagate a guided mode around a closed path
Data Source
AI summary
An apparatus includes a plurality of nodes coupled to an optical network, each node including an optical transmitter interface configured to transmit an optical signal at a location along a coupled optical path of the optical network, and an optical receiver interface configured to receive an optical signal at a location along the coupled optical path of the optical network. The apparatus includes a first optical path of the optical network configured to propagate a guided mode around a closed path; and a second optical path of the optical network configured to propagate a guided mode around a closed path.