Optical Waveguide Structure for Shape-Stable Light Guiding
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Solution Overview
Problem
Existing optical waveguide components face challenges in maintaining the desired shape of the high refractive index region, which can lead to distorted light transmission.
Innovation Solution
The optical waveguide component incorporates a high refractive index region surrounded by low refractive index regions at its four sides, with specific geometric configurations to maintain shape and reduce light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a high refractive index region is created in the base material, then the refractive index is improved and light guiding capability is enhanced, but the shape of the high refractive index region becomes distorted
Solution Approach 1:
The patent applies local quality by creating regions with different refractive indices at specific locations around the high refractive index region. The low refractive index regions are positioned at the four sides (top, bottom, left, right) of the high refractive index region in the cross-section, providing localized refractive index modulation that compensates for shape distortion while maintaining the overall Gaussian shape of the light transmission profile.
2Reliability
If the high refractive index region is modified to improve light transmission, then optical performance is enhanced, but light leakage increases
Solution Approach 1:
The patent converts the potential harm of light leakage into a benefit by strategically placing low refractive index regions around the high refractive index region. These low refractive index regions act as optical barriers that reflect stray light back into the high refractive index region, transforming what would be energy loss into useful light guidance and reducing overall light leakage.
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 configuration maintains the desired shape of the high refractive index region while improving its refractive index, reducing light leakage, and enhancing optical performance.
Implementation Method 1
The modified region extends in a first direction inside the base material portion and has a refractive index different from the refractive index of the base material portion. The modified region includes a high refractive index region having a refractive index higher than the refractive index of the base material portion.
Data Source
AI summary
An optical waveguide component includes a base material portion, and a modified region. The modified region extends in a first direction inside the base material portion and has a refractive index different from a refractive index of the base material portion. The modified region includes a high refractive index region and a low refractive index region. The high refractive index region has a refractive index higher than the refractive index of the base material portion. The low refractive index region has a refractive index lower than the refractive index of the base material portion. The low refractive index region is arranged at each of four sides of the high refractive index region in the cross-section intersecting the first direction.