Optical Modulation Chip Layout Using Multi-Edge Electrodes
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Solution Overview
Problem
The limitations of existing signal modulation chips, such as silicon photonic chips, in reducing chip area are constrained by the spacing between electrodes, leading to increased costs and reduced performance due to crosstalk and the need to minimize modulator, input, and output interface lengths.
Innovation Solution
Distributing electrodes on multiple side edges of the chip, rather than a single edge, to reduce spacing requirements and minimize chip area while maintaining performance by preventing signal changes during transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the spacing between adjacent electrodes is reduced to decrease chip area, then chip area is reduced, but crosstalk between electrodes increases and manufacturing reliability deteriorates
Solution Approach 1:
The patent transitions from a one-dimensional linear arrangement of electrodes along a single side edge to a two-dimensional distributed arrangement across multiple side edges of the chip. This dimensional change allows electrodes to be positioned at corners and along different edges, effectively utilizing the chip's perimeter space and reducing the need for closely spaced electrodes along a single line, thereby maintaining signal reliability while minimizing chip area.
Solution Approach 2:
The patent segments the electrode arrangement by distributing N electrodes across multiple side edges rather than concentrating them along one edge. This segmentation allows each electrode to be optimally positioned along its respective edge, reducing the spacing requirements between adjacent electrodes and minimizing crosstalk while achieving compact chip design.
2Area of stationary object
If the lengths of modulator, input interface, and output interface are reduced to decrease chip area, then chip area is reduced, but signal modulation performance deteriorates
Solution Approach 1:
By distributing electrodes across multiple side edges, the patent creates more efficient signal transmission paths that reduce the required lengths of modulators and interfaces. The two-dimensional electrode arrangement optimizes the spatial relationships between components, allowing for shorter connection paths while maintaining signal integrity and modulation accuracy.
3Reliability
If the spacing between electrodes is increased to prevent crosstalk, then signal transmission reliability is improved, but chip area increases
Solution Approach 1:
The patent resolves this contradiction by moving from a one-dimensional electrode layout to a two-dimensional distributed layout across multiple side edges. This allows electrodes to be positioned at optimal locations including corners and along different edges, maximizing the effective use of chip perimeter and maintaining adequate spacing between electrodes to prevent crosstalk while minimizing the overall chip area required.
Data Source
AI summary
A signal modulation chip, method, and computer-readable storage medium for optical signal modulation. The chip includes N first electrodes distributed on at least two different side edges, N modulators each connected to one electrode, an input interface for receiving optical signals, and an output interface for outputting modulated signals. Each first electrode i receives electrical signals and transmits them to corresponding modulator i. The input interface transmits optical signals to the modulators, which modulate the optical signals according to received electrical signals to obtain modulated optical signals. The output interface then outputs these modulated optical signals, enabling efficient optical signal processing through distributed electrode architecture and electrical control mechanisms.