Cyclic Arrayed Waveguide Grating Photonic Interconnect
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Solution Overview
Problem
Traditional photonic interconnect systems are complex and expensive due to their reliance on numerous optical switches, making them difficult to maintain and scale.
Innovation Solution
A simplified photonic interconnect system utilizing a cyclic arrayed waveguide grating (AWG) with multiplexers and demultiplexers, along with tunable light devices and optical-to-electrical converters, allows for scalable and efficient optical signal routing by selectively tuning wavelengths to route input signals to any output, reducing the need for active control of all components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional photonic interconnect systems use numerous optical switches to route signals, then signal routing capability is achieved, but device complexity and cost increase significantly
Solution Approach 1:
The patent combines multiple optical switches into a single integrated cyclic arrayed waveguide grating (AWG) device. The cyclic AWG integrates the functions of wavelength routing and signal switching in one component, eliminating the need for numerous separate optical switches while maintaining comprehensive signal routing capability across multiple inputs and outputs.
Solution Approach 2:
The cyclic AWG serves multiple functions simultaneously: it acts as a wavelength router, a signal switch, and a demultiplexer. This multi-functional design allows a single device to handle routing decisions that would traditionally require multiple specialized components, thereby reducing overall system complexity while preserving adaptability.
2Adaptability or versatility
If traditional photonic interconnect systems use numerous optical switches, then signal routing is possible, but maintenance difficulty increases
Solution Approach 1:
By merging multiple optical switches into a single cyclic AWG device, the patent reduces the number of potential failure points and maintenance requirements. The integrated design means that issues can be addressed at a single component level rather than across multiple discrete switches, simplifying repair and maintenance operations while preserving the signal routing function.
3Adaptability or versatility
If traditional photonic interconnect systems use numerous optical switches, then routing capability is achieved, but scalability becomes difficult
Solution Approach 1:
The cyclic AWG employs dynamic wavelength tuning capabilities that allow the device to adapt its routing behavior based on traffic conditions. This dynamic adjustment mechanism enables the system to scale efficiently by reconfiguring the cyclic routing paths without adding physical components, thereby maintaining routing capability while improving scalability.
Solution Approach 2:
The multi-functional cyclic AWG can handle various routing scenarios through a single device architecture. By implementing wavelength-division multiplexing and cyclic routing patterns, the device can serve increasing numbers of inputs and outputs without requiring proportional increases in component count, thus achieving scalability while maintaining routing capability.
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 simplifies the design, reduces costs, and enhances scalability by allowing the system to handle a larger number of inputs and outputs without increasing complexity, thereby improving the efficiency and maintainability of optical communications.
Implementation Method 1
a cyclic arrayed waveguide grating (AWG) with multiplexers and demultiplexers
Implementation Method 2
cyclic arrayed waveguide grating (AWG)
Data Source
AI summary
A photonic interconnect apparatus includes tunable light devices, multiplexers to multiplex optical signals produced by the tunable light devices onto optical paths, and a cyclic arrayed waveguide grating (AWG) to receive the optical signals over the optical paths, and to direct a given optical signal of the received optical signals to a selected output of a plurality of outputs of the cyclic AWG based on a wavelength of the given optical signal. A respective demultiplexer directs the given optical signal to a selected output of a plurality of outputs of the respective demultiplexer according to which coarse wavelength band the wavelength of the given optical signal is part of.