Fiber Optic Transceiver Heat Dissipating Structure
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Solution Overview
Problem
Optical fiber communication systems face challenges in thermal management of semiconductor light sources, which affect the efficiency and reliability of high-speed communication systems, particularly in increasing bandwidth demands driven by applications like video on demand and cloud computing.
Innovation Solution
The implementation of a heat dissipating structure within the fiber optic transceiver, featuring a substrate with integrated heat dissipating structures made from materials like copper or aluminum, and insulating protrusions to reduce thermal cross-talk, along with strategically placed fins and air vents for effective airflow, to manage heat generated by the semiconductor light source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If semiconductor light sources are used to deliver optical signals, then cost and operational efficiency are improved, but thermal management challenges worsen
Solution Approach 1:
The housing is divided into a first portion and a second portion with a through-hole, creating separate thermal zones. The heat dissipating structure is segmented with fins extending into the through-hole, separating the light source mounting area from other components while facilitating targeted heat dissipation pathways.
Solution Approach 2:
A heat dissipating structure serves as an intermediary between the semiconductor light source and the housing. This structure includes a mounting surface for the light source and fins that extend into the through-hole, acting as a thermal conduit that transfers heat from the light source to the external environment while electrically isolating the light source from the housing.
2Productivity
If bandwidth capacity is increased to meet demand, then communication system performance is improved, but heat generation from light sources worsens
Solution Approach 1:
The heat dissipating structure utilizes the third dimension by extending fins vertically into the through-hole of the housing. This vertical arrangement creates additional surface area for heat dissipation in the Z-direction, allowing heat to be rejected both internally and externally from the transceiver assembly.
Solution Approach 2:
The heat dissipating structure changes the thermal parameters by providing multiple heat dissipation pathways. The fins increase the effective heat transfer surface area and create convection currents through the through-hole, changing the heat dissipation rate and thermal resistance of the system.
3Temperature
If heat dissipating structures are added to manage thermal challenges, then thermal management is improved, but device complexity worsens
Solution Approach 1:
The heat dissipating structure is merged with the housing structure by integrating it into the wall portion containing the through-hole. The fins are formed as part of the housing or mounted directly to it, combining the structural support function with the heat dissipation function in a single integrated component rather than separate parts.
Solution Approach 2:
The heat dissipating structure performs multiple functions: it provides a mounting surface for the semiconductor light source, serves as a thermal conduit for heat dissipation, and acts as an electrical isolation barrier between the light source and housing. This multi-functionality reduces the need for additional separate components.
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 solution enhances the thermal management of semiconductor light sources, improving the reliability and efficiency of optical fiber communication systems by effectively dissipating heat and maintaining operational stability under increased bandwidth demands.
Implementation Method 1
a heat dissipating structure (150)... configured to dissipate heat generated by the light source (110)
Implementation Method 2
strategically placed fins and air vents for effective airflow, to manage heat generated by the semiconductor light source
Implementation Method 3
insulating protrusions to reduce thermal cross-talk
Data Source
AI summary
A fiber optic transceiver comprising a substrate, a heat dissipating structure, a receptacle and a light source is disclosed. The substrate may have a hole extending therethrough. The heat dissipating structure may be coupled to the substrate and may comprise a major surface, a plurality of fins, a projecting member, and a plurality of insulating protrusions. The plurality of fins may project from the major surface of the heat dissipating structure away from the substrate. The projecting member may extend partially or completely through the hole of the substrate. The plurality of insulating protrusions may extend substantially perpendicularly from the major surface of the heat dissipating structure and coupled to the substrate. The plurality of insulating protrusions may be configured to separate the major surface of the heat dissipating structure with the substrate so as to reduce heat transfer between the substrate and the heat dissipating structure.