Waveguide Member With Transmission Suppression Member
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Solution Overview
Problem
In waveguide structures, it is challenging to completely eliminate light leakage between multiple waveguides, leading to interference, which can be mitigated by increasing the distance between cores, but this limits high-density packing.
Innovation Solution
A waveguide member design featuring cores with a surrounding clad of lower refractive index and a transmission suppression member between adjacent cores to prevent light leakage, allowing for high-density arrangement without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the interval between cores is increased to suppress light interference, then light interference is reduced, but core density decreases
Solution Approach 1:
The patent introduces a transmission suppression member as a separate component that divides the space between cores, creating distinct light isolation zones. This segmentation allows cores to be positioned closer together while maintaining light interference suppression, effectively resolving the contradiction between core density and light interference reduction.
Solution Approach 2:
The transmission suppression member acts as an intermediary element between adjacent cores. This mediator component actively suppresses light transmission between cores, enabling high-density core arrangement without compromising light interference performance. The intermediary structure allows cores to be densely packed while maintaining optical isolation.
2Object-affected harmful factors
If transmission suppression members are added between cores, then light interference is suppressed, but device complexity increases
Solution Approach 1:
The transmission suppression member is strategically positioned only in specific regions where light interference occurs between adjacent cores, rather than uniformly throughout the entire waveguide structure. This localized approach suppresses light interference effectively while minimizing the addition of structural complexity to areas where it is not needed.
Solution Approach 2:
The transmission suppression member is formed as a composite structure integrating the lower clad layer and the light transmission suppressing portion into a single functional unit. This composite design simplifies manufacturing by reducing the number of separate assembly steps while maintaining the light interference suppression function, thereby offsetting the increase in structural complexity.
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 design effectively suppresses light interference between waveguides while enabling high-density packing of cores, maintaining structural stability and preventing light leakage.
Implementation Method 1
a clad (106) surrounding the plurality of cores and smaller in refractive index for light than each of the cores
Data Source
AI summary
An issue is directed to suppressing light interference occurring between a plurality of waveguides and providing waveguides at high densities. Means for solving the issue includes a plurality of cores (104) each configured to allow light to be transmitted therethrough, a clad (106) surrounding the plurality of cores (104) and smaller in refractive index for light than each of the cores (104), and a transmission suppression member (108) located between mutually adjacent two cores out of the plurality of cores (104) and configured to suppress transmission of light leaking from each of the cores.