Optical Transceiver Layout for Narrow Width and Low Signal Attenuation
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Solution Overview
Problem
Existing optical transceiver devices face challenges in reducing size while maintaining high efficiency, particularly in optical modules where a narrow width is required, due to inefficient space utilization and signal attenuation issues.
Innovation Solution
The optical transceiver device is designed with a rectangular optical circuit area, where the driver circuit is arranged along one side and the TIA circuit along an orthogonal side, with peripheral components positioned adjacent to these circuits, optimizing space usage and proximity for improved signal quality and reduced size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the optical transceiver device is designed with conventional layout, then the space utilization is insufficient, but the device width becomes larger
Solution Approach 1:
The patent transitions from a conventional linear arrangement to a two-dimensional planar layout where the optical circuit area, driver circuit, and TIA circuit are arranged in specific spatial relationships. The driver circuit is positioned adjacent to one side of the optical circuit area, and the TIA circuit is positioned adjacent to another side, creating an optimized two-dimensional space utilization that reduces the overall device width while maintaining all necessary functional areas.
2Length of stationary object
If the optical transceiver device is reduced in size, then the optical module size can be reduced, but signal attenuation increases
Solution Approach 1:
The patent optimizes the local spatial relationships between critical circuit components and the optical circuit. By positioning the driver circuit and TIA circuit at specific locations adjacent to the optical circuit area, the signal transmission paths are minimized and optimized. This local optimization of component placement reduces signal attenuation while enabling overall device size reduction, as the critical signal paths are kept short despite the compact form factor.
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 allows for a narrower width and higher space utilization, mitigating signal attenuation and enabling smaller optical module sizes while maintaining high signal quality.
Implementation Method 1
an optical modulator to generate a modulated optical signal
Implementation Method 2
an optical reception circuit to convert a received optical signal into an electric signal
Data Source
AI summary
An optical transceiver device includes: an optical circuit that includes an optical modulator to generate a modulated optical signal and an optical reception circuit to convert a received optical signal into an electric signal and implemented in a rectangular optical circuit area; a driver circuit that drives the optical modulator and arranged along a first side of the optical circuit area; an amplifier circuit that converts an output signal of the optical reception circuit into a voltage signal and arranged along a second side of the optical circuit area, the second side being orthogonal to the first side; a first electrical component that is electrically coupled to the driver circuit and arranged in an area adjacent to the driver circuit; and a second electrical component that is electrically coupled to the amplifier circuit and arranged in an area adjacent to the amplifier circuit.