Optical Transceiver Passive Thermal Chamber
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Solution Overview
Problem
Optical communication systems face challenges in maintaining stable operating parameters due to temperature variations, as existing thermal management solutions like TECs are power inefficient and costly, and uncooled lasers experience wavelength shifts with temperature changes, affecting optical properties.
Innovation Solution
A sealed thermal chamber with a material that exhibits low thermal conductivity below a lower threshold temperature and high thermal conductivity above an upper threshold temperature, passively regulating the temperature of photonics components within a predetermined range, allowing self-heating or heat dissipation to maintain stable optical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If TECs are used to regulate local temperature of photonics components, then temperature stability is improved, but power consumption increases and device cost increases
Solution Approach 1:
The photonics component's own heat generation is utilized to maintain its operating temperature. The component heats itself during operation, and the thermal insulation chamber preserves this self-generated heat, eliminating the need for external heating devices or active temperature control systems.
Solution Approach 2:
The active temperature control system (TEC with power supply and control circuitry) is removed from the design. Instead, a passive thermal insulation chamber is implemented, extracting the harmful complexity and power consumption while retaining the beneficial temperature stability through purely thermal passive means.
2Stability of the object's composition
If TECs are used to regulate local temperature, then temperature stability is improved, but device complexity increases
Solution Approach 1:
The active temperature control system (TEC with power supply and control circuitry) is removed from the design. Instead, a passive thermal insulation chamber is implemented, extracting the harmful complexity and power consumption while retaining the beneficial temperature stability through purely thermal passive means.
Solution Approach 2:
The photonics component's own heat generation is utilized to maintain its operating temperature. The component heats itself during operation, and the thermal insulation chamber preserves this self-generated heat, eliminating the need for external heating devices or active control systems.
3Use of energy by moving object
If uncooled lasers are used, then power consumption is reduced, but wavelength stability deteriorates
Solution Approach 1:
The photonics component's own heat generation is utilized to maintain its operating temperature. The component heats itself during operation, and the thermal insulation chamber preserves this self-generated heat, eliminating the need for external heating devices or active control systems.
4Stability of the object's composition
If active heating is used to maintain elevated temperature, then temperature stability is improved, but power consumption increases
Solution Approach 1:
The photonics component's own heat generation is utilized to maintain its operating temperature. The component heats itself during operation, and the thermal insulation chamber preserves this self-generated heat, eliminating the need for external heating devices or active control systems.
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 reduces temperature variability in photonics components, enhancing optical performance and enabling more channels in a given spectrum range while lowering power consumption and eliminating the need for active control or electrical connections.
Implementation Method 1
The material exhibits a second thermal conductivity higher than the first thermal conductivity above an upper predetermined threshold temperature
Implementation Method 2
The material exhibits a first thermal conductivity below a lower predetermined threshold temperature
Data Source
AI summary
An article may include an optical transceiver package, which may include a photonics component mounted in the optical transceiver package. The photonics component may generate heat in an operational state. The optical transceiver package may include a sealed thermal chamber that maintains the photonics component between a lower predetermined working temperature and a higher predetermined working temperature. The sealed thermal chamber may include a material that exhibits a first thermal conductivity below a lower predetermined threshold temperature and a second thermal conductivity higher than the first thermal conductivity above an upper predetermined threshold temperature. A method may include retaining the generated heat to raise the photonics component above a lower predetermined working temperature, and conducting the generated heat away from the optical transceiver package to lower the photonics component below an upper predetermined working temperature. A system may include the optical transceiver package mounted to a printed circuit board.