Direct Modulator Drive Signals Without a Separate Driver Chip
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high power consumption of optical modules in data centers, particularly due to the need for a separate driver chip to amplify signals for modulators, limits the integration capacity and increases costs.
Innovation Solution
A signal generation apparatus comprising an encoder, serializer, equalizer, and multiple amplifiers that produce differential signals directly driving modulators, eliminating the need for a driver chip and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a separate driver chip is used to amplify signals for modulators, then the signal amplification function is achieved, but the power consumption increases significantly
Solution Approach 1:
The patent merges the driver chip function into the modulator by integrating amplification circuits directly within the modulator structure. The modulator now performs both modulation and signal amplification functions, eliminating the need for a separate driver chip and reducing overall power consumption while maintaining signal amplification capability.
Solution Approach 2:
The patent extracts the amplification function from the separate driver chip and relocates it into the modulator unit. This reorganization removes the need for the driver chip as an independent component, thereby reducing the number of components and lowering power consumption while preserving the necessary signal amplification function.
2Power
If a separate driver chip is used to amplify signals, then signal amplification is achieved, but the integration capacity decreases
Solution Approach 1:
The patent combines the driver chip's amplification function with the modulator into a single integrated unit. This merger increases integration capacity by reducing the number of separate components while maintaining the necessary signal amplification capability through internally integrated amplification circuits.
3Power
If a separate driver chip is used, then signal amplification function is provided, but the cost increases
Solution Approach 1:
The patent merges the driver chip function into the modulator, reducing the total component count and simplifying the manufacturing process. This integration lowers manufacturing costs by eliminating the need to produce, test, and assemble separate driver chips while maintaining the essential signal amplification function through integrated circuits.
Solution Approach 2:
The patent extracts the amplification function from the separate driver chip and incorporates it into the modulator. This reorganization eliminates the driver chip as a separate component, thereby reducing material costs, assembly costs, and overall manufacturing complexity while preserving the amplification capability.
Data Source
AI summary
This application provides a signal generation apparatus and method, and a system. The signal generation apparatus includes an encoder, a serializer, an equalizer, and N amplifiers. The encoder is configured to encode to-be-sent data, to obtain a first electrical signal. The serializer is configured to perform parallel-to-serial processing on the first electrical signal, to obtain a second electrical signal. The equalizer is configured to process the second electrical signal, to obtain a third electrical signal. The third electrical signal is amplified by the N amplifiers, to obtain N pairs of differential signals, where N is an integer greater than 2. In embodiments of this application, the N amplifiers amplify differential signals to obtain N pairs of differential signals, and the N pairs of differential signals are directly used as drive signals, so that power consumption for generating a drive signal can be reduced.