Detachable Light Source Module With Dual-Side Optical Interfaces

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Solution Overview

Problem

The limited available space on the panel of optical network devices due to the need for both a pluggable light source module and an input/output interface, which often lacks sufficient space for heat dissipation, limits the performance of the device board.

Innovation Solution

A detachable light source module with integrated optical interfaces on different sides, allowing for a detachable connection to the optical communication device, eliminating the need for separate panel-mounted optical I/O ports and enabling space-saving designs for heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If a pluggable light source module is used to enable easy replacement of the light source, then the light source can be replaced independently without replacing other components, but the available space on the panel is limited and insufficient space for heat dissipation holes is available

Engineering Contradiction:
Improvelight source replacementVSAvoidpanel available space
Core Design Contradiction:
Ease of repairVSArea of stationary object

Solution Approach 1:

The patent combines the optical input interface and optical output interface into a single light source module. The module includes a substrate with a light source, an electrical interface for power supply, a first optical interface for optical signal input/output, and integrates these components so that the optical interfaces are disposed on different sides of the module body, merging multiple functions into one replaceable unit.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent utilizes three-dimensional space by disposing the first optical interface and second optical interface on different sides of the module body. This spatial arrangement allows optical signals to pass through the module from opposite directions without requiring separate panel openings, effectively using the module's internal volume to resolve the panel space constraint.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If separate optical input/output ports are disposed on the panel, then optical signals can be transmitted, but the panel space is occupied and heat dissipation space is insufficient

Engineering Contradiction:
Improveoptical signal transmissionVSAvoidpanel space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent extracts the optical input and output interfaces from the panel structure and relocates them to an independent light source module. The module is connected to the panel through a detachable connection, allowing the optical interfaces to be positioned away from the panel surface. This extraction eliminates the need for separate optical ports on the panel, freeing up panel space for heat dissipation while maintaining optical signal transmission capability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Area of stationary object

If the light source module integrates multiple interfaces, then panel space is saved, but the module structure becomes more complex

Engineering Contradiction:
Improvepanel spaceVSAvoidmodule structure
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent segments the optical communication system into distinct functional modules: the light source module containing the light source and optical interfaces, and the panel structure. By segmenting the system this way, the complex multi-interface structure is contained within a self-contained module that can be easily replaced, while the panel structure remains simple and requires minimal modifications.

Inventive Principle:
Principle #1Segmentation

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 design significantly saves panel space, allowing for improved heat dissipation and enhanced performance of the device board by integrating optical interfaces within the module, thus optimizing communication efficiency.

Implementation Method 1

The light source and the electrical interface are disposed on the substrate. The electrical interface is configured to supply power to the light source.

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentEP4708729A2Light source module and optical communication device
Publication Date: 2026.03.11 HUAWEI TECH CO LTD
  • EP4708729A2 patent drawingFigure 1~2
  • EP4708729A2 patent drawingFigure 3
  • EP4708729A2 patent drawingFigure 4A

AI summary

This application relates to a light source module applied to an optical communication device. The light source module includes a substrate, a light source, an electrical interface, a first optical interface, and a second optical interface. A connection between the light source module and the optical communication device is a detachable connection, and the light source and the electrical interface are disposed on the substrate. The electrical interface is configured to supply power to the light source, and the first optical interface is configured to output continuous light emitted by the light source and/or receive a first optical signal from the optical communication device. The second optical interface and the first optical interface are on different sides, and the second optical interface is configured to receive a second optical signal from an outside of the optical communication device and/or the first optical signal sent by the first optical interface.