Light Module Phase Control Using Intensity Feedback
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Solution Overview
Problem
Existing light module configurations require complex control circuits to adjust light phase, making them cumbersome for phase adjustment tasks.
Innovation Solution
A light module with a phase control mechanism that adjusts light phase based on detected intensity, using a thermoelectric element to modify the waveguide refractive index, eliminating the need for dither signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a dither signal is used to adjust the phase of light transmitted through the wavelength filter, then the phase can be adjusted, but the configuration becomes complicated due to the requirement of a control circuit for modulation
Solution Approach 1:
The patent extracts and eliminates the complex control circuit for dither signal modulation, replacing it with a simplified direct phase adjustment mechanism that achieves the same phase control function without the unnecessary modulation complexity
Solution Approach 2:
The system achieves self-service phase adjustment where the phase control is integrated into the light transmission path itself, allowing the optical system to automatically adjust phase without external complex control circuits
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
Enables simple and effective light phase adjustment without the need for complex control circuits, stabilizing light intensity and reducing configuration complexity.
Implementation Method 1
using a thermoelectric element to modify the waveguide refractive index
Implementation Method 2
a detection means for detecting intensity of the light
Data Source
AI summary
A light module (1), in order to adjust the phase of light using a simple configuration, comprises: a light outputting means (20) for outputting light; a phase control means (17) for adjusting the phase of the light; and a detection means (16) for detecting the intensity of the light. The phase control means (17) adjusts the phase of the light on the basis of the intensity.