Dual Laser Driver Switching for Multi-Waveband PON Communication
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Solution Overview
Problem
Conventional optical fiber communication equipment cannot be applied to passive optical networks (PON) in different wavebands simultaneously, requiring users to switch between multiple communication devices, which is inconvenient.
Innovation Solution
A communication device equipped with a first and second laser driver, a light emitting and receiving component, and a processor that automatically selects the appropriate laser driver based on the wavelength of the optical signal to communicate with passive optical networks in multiple wavebands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication devices are used to support different wavebands, then the adaptability to different PON wavebands is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
The patent combines multiple laser drivers (first laser driver for first waveband, second laser driver for second waveband) and multiple light emitting and receiving components into a single communication device. The processor coordinates these components to automatically select and switch between different wavebands, eliminating the need for users to manually switch between multiple separate devices while maintaining support for both GPON and XGSPON wavebands.
Solution Approach 2:
The communication device is designed with multi-functionality to support both first waveband (e.g., GPON) and second waveband (e.g., XGSPON) communications. The device includes configurable laser drivers and light emitting/receiving components that can be dynamically activated based on the required waveband, making a single device universal for different PON standards rather than requiring separate dedicated devices.
2Adaptability or versatility
If multiple communication devices are used to support different wavebands, then the adaptability to different PON wavebands is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple waveband handling capabilities into a single integrated device. Instead of requiring separate physical devices for different PON wavebands, the invention integrates multiple laser drivers, multiple light emitting and receiving components, and a processor that manages them all within one device, reducing the overall system complexity despite increased internal integration.
Solution Approach 2:
The device employs dynamic switching between different laser drivers and light emitting/receiving components based on the active waveband. The processor dynamically configures which components are active (enabling first laser driver and first component for first waveband, or second laser driver and second component for second waveband), allowing the device to adapt its internal configuration rather than maintaining all components permanently active, thus managing complexity through dynamic rather than static design.
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
Enables seamless communication with both Gigabit PON (GPON) and 10 Gigabit Symmetric PON (XGSPON) by automatically disabling the inactive laser driver, ensuring high-speed and long-distance signal transmission quality.
Implementation Method 1
The light emitting and receiving component converts the optical signal into the first electrical signal
Data Source
AI summary
A communication device includes a first laser driver, a second laser driver, a light emitting and receiving component, and a processor. The light emitting and receiving component is connected to a passive optical network to send and/or receive an optical signal. The light emitting and receiving component converts the optical signal into a first electrical signal and outputs the first electrical signal to one of the first laser driver and the second laser driver. One of the first laser driver and the second laser driver converts the first electrical signal into a second electrical signal, and outputs the second electrical signal to the processor. The processor disables another one of the first laser driver and the second laser driver.