TORminator Optical Multiplexer Module for Data Center Connectivity
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Solution Overview
Problem
Current optical data communication systems face challenges in efficiently converting and transmitting data between electrical and optical domains across distributed computing systems, leading to limitations in network throughput and increased latency and costs due to reliance on copper cabling.
Innovation Solution
The implementation of a TORminator system that uses highly integrated electronic-photonic transceiver technology to establish direct optical links between data-center networks and servers, employing a TORminator module and SmartDistribuTOR modules to convert electrical signals to optical signals and aggregate them across multiple servers using dense wavelength division multiplexing, thereby reducing the need for copper cables and enhancing connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If copper cabling is used for data transmission between data-center networks and servers, then electrical signal transmission is reliable, but network throughput is limited and latency increases
Solution Approach 1:
The patent replaces electrical signal transmission through copper cabling with optical signal transmission through optical fibers. The TORminator module converts electrical signals from the data-center network into optical signals that can be transmitted through optical fiber cables to servers, eliminating the need for copper cabling and enabling higher bandwidth and lower latency communication.
Solution Approach 2:
The patent changes the fundamental transmission medium from electrical conductors (copper) to optical waveguides (optical fiber). This parameter change enables transmission at optical frequencies rather than electrical frequencies, dramatically increasing available bandwidth and reducing signal propagation delays, thereby improving network throughput and reducing latency.
2Speed
If optical signals are transmitted between data-center networks and servers, then bandwidth and speed are improved, but infrastructure cost and complexity increase
Solution Approach 1:
The TORminator module serves multiple functions: it acts as an optical transceiver converting electrical signals to optical signals, functions as a wavelength division multiplexing device combining multiple data streams onto different optical wavelengths, and provides optical switching capabilities. This multi-functionality reduces the need for separate dedicated components for each function, thereby reducing overall system complexity despite the advanced optical infrastructure.
Solution Approach 2:
The patent segments the data transmission system into distinct functional modules: the TORminator module in the data-center network, optical fiber transmission medium, and server-side optical receivers. This modular segmentation allows each component to be optimized independently and facilitates easier maintenance and upgrades, reducing overall system complexity management.
3Reliability
If multiple data streams are transmitted over separate copper cables, then signal integrity is maintained, but cabling complexity and cost increase
Solution Approach 1:
The patent merges multiple separate data streams onto a single optical fiber cable using wavelength division multiplexing. The TORminator module assigns different optical wavelengths to different data streams, allowing simultaneous transmission of multiple signals through the same physical medium. This combining approach maintains signal integrity through optical isolation while dramatically reducing cabling complexity compared to requiring separate copper cables for each data stream.
Solution Approach 2:
The patent introduces optical wavelengths as intermediary carriers for data transmission. Instead of transmitting electrical signals directly through copper cables, the system uses optical wavelengths as intermediaries that can be multiplexed and demultiplexed at the endpoints. This intermediary approach enables multiple data streams to share the same physical infrastructure while maintaining signal integrity through wavelength-specific transmission paths.
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 solution enables efficient, high-bandwidth, low-energy, and cost-effective optical connectivity across thousands of servers, allowing for flexible allocation of compute resources and reducing the complexity of data-center networks by minimizing the use of copper cabling and leveraging advances in electronic-photonic integration and dense wavelength division multiplexing.
Implementation Method 1
The TORminator module is configured to convert a number (N) of downlink data communication electrical signals received from the rack switch into corresponding N downlink data communication optical signals
Implementation Method 2
The optical demultiplexer is configured to separate N downlink data communication optical signals received through the downlink optical port based on optical wavelength
Data Source
AI summary
A TORminator module is disposed with a switch linecard of a rack. The TORminator module receives downlink electrical data signals from a rack switch. The TORminator module translates the downlink electrical data signals into downlink optical data signals. The TORminator module transmits multiple subsets of the downlink optical data signals through optical fibers to respective SmartDistributor modules disposed in respective racks. Each SmartDistributor module receives multiple downlink optical data signals through a single optical fiber from the TORminator module. The SmartDistributor module demultiplexes the multiple downlink optical data signals and distributes them to respective servers. The SmartDistributor module receives multiple uplink optical data signals from multiple servers and multiplexes them onto a single optical fiber for transmission to the TORminator module. The TORminator module coverts the multiple uplink optical data signals to multiple uplink electrical data signals, and transmits the multiple uplink electrical data signals to the rack switch.