Integrated Optical Transceiver Chip for High-Speed Low-Power Data Links
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Solution Overview
Problem
Current optical transceiver chips for high-speed optical communication face challenges with high power consumption, slow communication speed, and poor anti-interference ability, particularly in high-speed optical fiber links above 10 Gb/s.
Innovation Solution
A four-channel and single-channel high-speed low-power-consumption optical transceiver chip design, comprising an optical transmitter module, an optical receiver module, and a common module, with specific components like data buffers, clock and data recovery units, laser drivers, photodiodes, transimpedance amplifiers, and power controllers, optimized for efficient data transmission and low power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If discrete chip design is used for optical transceiver, then ease of manufacture is improved, but power consumption increases and communication speed decreases
Solution Approach 1:
The patent merges multiple discrete functional modules (laser driver, transimpedance amplifier, clock data recovery unit, data buffer) onto a single integrated chip. This integration eliminates the need for coupling transmission between separate chips, reducing power consumption while maintaining manufacturability through standardized semiconductor fabrication processes.
2Ease of manufacture
If discrete chip design is used for optical transceiver, then ease of manufacture is improved, but communication speed decreases
Solution Approach 1:
By integrating all optical transmission and reception functions on a single chip, the patent eliminates signal coupling delays between discrete chips. The direct internal connections provide lower latency and higher bandwidth, enabling communication speeds suitable for 10 Gb/s and above applications.
3Device complexity
If discrete chip design is used for optical transceiver, then device complexity is reduced, but anti-interference ability deteriorates
Solution Approach 1:
The integrated chip design consolidates all signal processing functions within a single controlled environment, eliminating external coupling paths that are susceptible to interference. The internal signal routing and power management structures provide inherent noise immunity while maintaining manageable device complexity through modular functional blocks.
4Use of energy by moving object
If integrated module design is used for optical transceiver, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The integrated chip is divided into distinct functional modules (optical transmitter module with laser driver and LED, optical receiver module with photodiode and transimpedance amplifier, data buffer, clock data recovery units). This segmentation allows each module to be optimized for low power consumption while the overall device complexity is managed through systematic integration and shared resources.
Solution Approach 2:
The integrated design implements multi-functional modules that perform multiple operations. For example, the photodiodes serve both optical detection and power monitoring functions, while the power controller manages power distribution across multiple modules. This multi-functionality reduces total component count and power consumption while controlling overall complexity.
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 design enables high-speed data transmission with reduced power consumption and improved anti-interference capabilities, addressing the limitations of existing transceiver chips by integrating multiple modules for efficient data processing and power management.
Implementation Method 1
The voltage signal is converted into an optical signal by the light-emitting diode
Implementation Method 2
a photodiode detects the optical data signal transmitted on the optical fiber and converts the optical data signal into an electrical signal
Data Source
AI summary
A single-channel high-speed low-power-consumption optical transceiver chip is provided, which comprises an optical transmitter module, an optical receiver module, and a common module, wherein the optical transmitter module comprises a data buffer, a first clock and data recovery unit, a first data selector, a laser driver, a power controller, a first clock buffer, a light-emitting diode, and a first photodiode; the optical receiver module comprises a second photodiode, a direct-current bias module, a transimpedance amplifier, a feedback resistor, a second clock and data recovery unit, a second clock buffer, a second data selector, and an output driver; the common module comprises a power supply controller, a direct-current bias, a logic controller, a serial interface, a memory, and a pseudo random data generator and checker; and the common module also provides a communication loop for the optical transmitter module and the optical receiver module.