Electro-Optic Waveguide with Dynamic Refractive Index Control
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Solution Overview
Problem
Conventional waveguide devices have fixed geometries that cannot be changed once structured, limiting their configurability and functionality in optical communication systems.
Innovation Solution
A variably configurable optical waveguide device with a layer stack comprising an electro-optic core layer and an electrode arrangement that allows for the activation of an electro-optic effect by an electric field, enabling manipulation of light propagation through the selective activation of individual electrodes, which can change the refractive index of the electro-optic material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional waveguide structures are used with fixed geometry, then manufacturing is simple and reliable, but adaptability and configurability are limited
Solution Approach 1:
The patent applies the dynamics principle by making the waveguide geometry dynamically adjustable through electro-optic effects. Electrodes are positioned to generate electric fields that modify the refractive index of the electro-optic material, enabling the optical pathway to be reconfigured in real-time without physical movement of components. This resolves the contradiction by providing adaptability through field-controlled dynamic properties rather than fixed static geometry.
Solution Approach 2:
The patent employs parameter changes by utilizing the electro-optic effect to alter the refractive index parameter of the core material through applied electric fields. By changing the refractive index parameter dynamically via electrode control, the optical propagation characteristics can be adjusted without changing the physical geometry or structure of the waveguide device, thus improving adaptability while maintaining structural simplicity.
2Adaptability or versatility
If multiple fixed waveguide devices are used for different optical functions, then device functionality is comprehensive, but device complexity and space requirements increase
Solution Approach 1:
The patent implements universality by designing a single waveguide device that can perform multiple optical functions through dynamic reconfiguration of the electro-optic material properties. By controlling different electrode patterns and electric field distributions, the same physical device can achieve switching, routing, and other optical functions, replacing the need for multiple separate fixed waveguide devices and thereby reducing the overall device footprint and complexity.
3Manufacturing precision
If electrode density is increased to improve optical pathway precision, then manufacturing precision improves, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies the dimensionality change principle by transitioning from planar two-dimensional electrode arrays to three-dimensional立体 electrode configurations. This spatial arrangement in multiple dimensions enables precise control of electric field distribution and optical pathway definition without requiring excessive electrode density in a single plane, thereby achieving high manufacturing precision while maintaining ease of fabrication through more manageable three-dimensional electrode structuring.
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 the dynamic adjustment of waveguide structures for various optical pathways, allowing for functions such as splitting, modulation, and amplification of light, effectively replacing multiple existing planar waveguide devices with enhanced flexibility and performance.
Implementation Method 1
the electrode arrangement is configured to activate an electro-optic effect in a region of the electro-optic core layer by an electric field generated by means of the electrode arrangement
Implementation Method 2
Waveguides used at optical frequencies are typically dielectric waveguides, structures in which a dielectric material with high relative permeability μr, and thus high index of refraction n, is surrounded by a material with lower relative permeability μr
Data Source
AI summary
Provided is a concept for variably guiding optical waves by using a layer-stack having an electro-optic core layer of electro-optic material for guiding light and an electrode arrangement with at least a first electrode layer in proximity to the electro-optic core layer, wherein the electrode arrangement is configured to activate an electro-optic effect in a region of the electro-optic core layer by an electric field generated by means of the electrode arrangement, such that a propagation of the light is manipulated in the region of the activated electro-optic effect.