Multi-Resonant Optoelectronic Device Temperature Control
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Solution Overview
Problem
Existing devices for controlling the temperature of multi-resonant optoelectronic devices, particularly ring-shaped optical microresonators, face challenges in maintaining a constant temperature across varying ambient conditions, leading to shifts in the transfer function and increased electric power consumption.
Innovation Solution
A method and device that automatically alternate between modes to control heating elements using feedback loops, shifting the operation of microresonators between resonance peaks to maintain optimal performance while minimizing power consumption and accommodating temperature variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a heating element is provided close to the ring-shaped waveguide to maintain constant temperature, then the transfer function stability is improved, but the electric power consumption increases significantly
Solution Approach 1:
The patent implements dynamic temperature control by alternating between heating modes (first and second modes) rather than maintaining a constant temperature profile. The heating element is activated intermittently to shift resonance peaks, allowing the system to adapt to temperature variations while reducing overall power consumption compared to continuous heating.
Solution Approach 2:
The control device operates in periodic cycles, alternating between first mode (heating to shift resonance) and second mode (allowing cooling or maintaining different resonance). This periodic activation of the heating element reduces average power consumption while maintaining transfer function stability through regular resonance peak alignment.
2Stability of the object's composition
If the heating element is controlled to maintain constant temperature, then the transfer function is stabilized, but the device cannot cool down when ambient temperature exceeds target temperature
Solution Approach 1:
The system dynamically switches between different operational modes: first mode for heating/shifting resonance peaks, and second mode for allowing temperature to decrease or maintain alternative resonance states. This dynamic switching enables the device to handle both cooling and heating requirements, expanding temperature adaptability while maintaining transfer function stability.
Solution Approach 2:
The patent changes the temperature parameter dynamically by alternating between heating phases (increasing temperature to shift resonance) and cooling/holding phases (allowing temperature to decrease). This parameter variation enables the system to adapt to a wider temperature range including cases where ambient temperature exceeds the target temperature.
3Stability of the object's composition
If continuous heating is applied to maintain temperature, then the transfer function remains stable, but the power consumption increases
Solution Approach 1:
Instead of continuous heating, the system applies heating periodically in alternating first and second modes. The heating element is activated only when needed to shift resonance peaks, then allowed to cool or maintain temperature in second mode, significantly reducing energy loss while maintaining transfer function stability through regular resonance alignment.
Solution Approach 2:
The system utilizes the natural cooling capability of the microresonator during second mode without requiring active cooling mechanisms. The alternating heating and cooling cycles allow the device to self-regulate temperature fluctuations, reducing the need for continuous energy input while maintaining operational stability.
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 effectively stabilizes the transfer function of multi-resonant optoelectronic devices across temperature fluctuations, reducing power consumption and ensuring reliable operation by dynamically adjusting the heating elements to maintain resonance peaks, thus enhancing the device's performance and efficiency.
Implementation Method 1
A first heating element (22) to heat the ring-shaped optical microresonator (10)
Implementation Method 2
A control device (20) for controlling the first heating element (22), comprising a sensor (24) capable of supplying an analog measurement signal S representative of power PDrop
Data Source
AI summary
The present invention involves a method of controlling at least one first element (22) for heating a multi-resonant optical device (10), automatically alternating between at least a first mode and a second mode, wherein, in the first mode, the first heating element is controlled by a first feedback loop (20) to lead the optical device to operate at a first resonance peak and wherein, at least during part of the second mode, the first feedback loop is made diverging to lead the optical device to operate at a second resonance peak.