Silicon Photonic Optical Circuit Switch for High-Speed Data Routing
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Solution Overview
Problem
Traditional electrical data transmissions face limitations in high-speed data transfer, particularly in data centers, due to slow switching times and high manufacturing costs of MEMS-based optical switches, which are impractical for real-time reconfiguration and scalable solutions.
Innovation Solution
An optical circuit switch utilizing silicon photonic components on an integrated circuit chip for faster switching and lower manufacturing costs, enabling dynamic reconfiguration of optical interconnections and scalable architectures for high-speed data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If MEMS-based switches are used for optical signal switching, then optical data transmission capability is achieved, but switching time becomes slow and manufacturing cost increases
Solution Approach 1:
The patent replaces the mechanical MEMS mirror system with an all-optical switching mechanism using nonlinear optical materials and optical field control. This substitution eliminates moving parts and mechanical actuation, achieving ultrafast switching speeds while simplifying fabrication to standard photonic integrated circuit processes.
Solution Approach 2:
The invention changes the switching mechanism from mechanical displacement to optical parameter modulation, specifically using intensity-dependent refractive index changes in nonlinear optical materials. This parameter-based control enables switching times on the order of picoseconds to nanoseconds, dramatically faster than mechanical systems.
2Productivity
If electrical data transmission is used, then data transfer is possible, but transmission speed is limited for large data amounts
Solution Approach 1:
The patent replaces electrical signal transmission with optical signal transmission throughout the switching system. This allows data to be transmitted and switched in the optical domain, enabling much higher bandwidth and transmission speeds suitable for large data amounts in data center applications.
3Adaptability or versatility
If real-time reconfiguration of optical interconnections is required, then network adaptability improves, but switching speed must be increased
Solution Approach 1:
The patent implements a dynamically reconfigurable optical circuit switch where the routing paths can be changed in real-time by controlling the optical switching elements. The all-optical mechanism enables these reconfigurations to occur at ultrafast speeds, allowing the network to adapt to changing traffic patterns and requirements.
Solution Approach 2:
The invention uses optical field parameters (intensity, phase) to control the switching state of nonlinear optical materials, enabling rapid and reversible reconfiguration of optical paths. This parameter-based control mechanism allows for real-time network reconfiguration without mechanical movement.
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 optical circuit switch achieves faster switching times (on the order of microseconds) and lower costs, allowing for efficient reconfiguration of high-speed data networks without manual intervention, supporting scalable topologies and high-performance computing applications.
Implementation Method 1
The optical circuit switch can be constructed from silicon photonic components implemented on an integrated circuit chip
Data Source
AI summary
An example system can comprise an optical circuit switch. An input port module can receive an input optical signal comprising a plurality of input components, perform an optical to electrical to optical conversion on the input optical signal, multiplex the plurality of input components to an internal optical signal, and transmit first internal optical signal on a first internal waveguide. A switch module can receive the internal optical signal and transmit the transformed internal optical signal on a second internal waveguide according to a predefined control algorithm, which can permit any input component to be mapped to any frequency group and sent to any output component. An output port module can receive the internal optical signal, perform another optical to electrical to optical conversion on the internal optical signal, and demultiplex the internal optical signal to an output optical signal comprising a plurality of output components.