Optical Multiplexer Module With Wavelength Conflict Blocking
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Solution Overview
Problem
Conventional multiplexer/demultiplexer modules in optical communication systems require modification or replacement when service changes, such as shifts in optical signal wavelengths, leading to increased difficulty in service adjustments.
Innovation Solution
A multiplexer module with an optical coupling unit and optical blocking units that allow coupling only when the optical signal from a client-side device does not conflict with existing wavelengths, using integrated detection and blocking units to avoid modifications, and incorporating wavelength conversion for non-conflicting signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional multiplexer/demultiplexer module uses fixed wavelength configuration, then the module structure is simple and manufacturing is easy, but the module cannot adapt when service wavelengths change, requiring modification or replacement
Solution Approach 1:
The patent introduces dynamically controllable optical blocking units that can be adjusted in real-time based on wavelength requirements. Instead of a fixed static structure, the system uses controllable elements (such as electro-optic or thermo-optic modulators) that can dynamically block or pass specific wavelengths, enabling the module to adapt to changing service requirements without physical modification or replacement.
Solution Approach 2:
The patent changes the operational parameters of the multiplexer by introducing wavelength-selective blocking units whose blocking characteristics can be modified through electrical or optical control signals. This allows the same physical module to handle different wavelength configurations by changing the control parameters rather than altering the physical structure, thereby achieving adaptability without increasing fundamental device complexity.
2Ease of operation
If the multiplexer module adds wavelength detection and control functions to handle variable wavelengths, then service adjustment flexibility improves, but the device complexity and fabrication difficulty increase
Solution Approach 1:
The patent integrates multiple functions into unified components. The optical blocking units serve dual purposes: they act as wavelength-selective filters and simultaneously function as controllable switches. The control unit performs both wavelength detection and decision-making for blocking/passing operations. This multi-functionality reduces the need for separate dedicated components, thereby improving ease of operation while limiting the increase in fabrication complexity.
Solution Approach 2:
The patent introduces a control unit as an intermediary that mediates between the input optical signals and the optical blocking units. This control unit receives wavelength information, determines the appropriate blocking configuration, and sends control signals to the blocking units. By placing this intelligent intermediary layer, the system achieves easy service adjustment through centralized control without requiring complex distributed modifications across the entire device structure.
3Adaptability or versatility
If the module uses optical blocking units to control wavelength passing, then wavelength selection flexibility improves, but the device complexity increases
Solution Approach 1:
The patent segments the wavelength control function into multiple independent optical blocking units, each capable of handling specific wavelength ranges or individual wavelengths. This segmentation allows flexible combination and configuration of blocking units to match different service requirements. By dividing the overall function into modular segments, the system achieves high wavelength selection flexibility while managing device complexity through standardized modular components that can be selectively activated.
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 approach reduces the need for module replacement and simplifies service adjustments by allowing flexible wavelength handling without altering the module's structure, minimizing size and fabrication complexity.
Implementation Method 1
The optical coupling unit is configured to couple a first optical signal and an optical signal that is input by the at least one optical blocking unit for output
Implementation Method 2
The at least one optical blocking unit is configured to receive an optical signal input by a client-side device, and when a first wavelength set does not include a wavelength of the optical signal input by the client-side device, send, to the optical coupling unit, the optical signal input by the client-side device
Data Source
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AI summary
A multiplexer module, a multiplexer/demultiplexer module, a wavelength division multiplexing apparatus, and a signal transmission method are provided. The multiplexer module includes an optical coupling unit and an optical blocking unit. The optical coupling unit is configured to couple an optical signal input by a first device and an optical signal input by the optical blocking unit for output. The optical blocking unit is configured to receive an optical signal input by a client-side device, and when a set of all wavelengths included in the optical signal input by the first device does not include a wavelength of the optical signal input by the client-side device, send, to the optical coupling unit, the optical signal input by the client-side device. The multiplexer module does not limit a wavelength of an uplink service of the client-side device, and coupling is allowed only when an optical signal of the uplink service of the client-side device does not conflict with an existing optical signal, to avoid modification or replacement of the multiplexer/demultiplexer module when a service changes, and reduce difficulty in service adjustment.