Electrochromic Optical Switch Without Moving Parts
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Solution Overview
Problem
Existing optical switches in fiber optic communication networks have alignment errors and durability issues due to numerous moving parts, which can lead to corrosion, abrasion, and debris introduction.
Innovation Solution
An optical switch design utilizing electrochromic components, such as electrochromic glass, positioned between optical fibers, which changes light transmittance reversibly with a direct current voltage below 5 V, allowing for a simple and reliable control of light transmission without moving parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional optical switches with moving parts are used, then light transmission control is achieved, but alignment errors and mechanical wear occur
Solution Approach 1:
The patent replaces mechanical moving parts with an electrochromic component that uses electrical voltage to control light transmission. The electrochromic layer changes its optical properties (from transparent to colored) when voltage is applied, eliminating the need for mechanical movement and associated alignment errors and wear.
Solution Approach 2:
The electrochromic component acts as an intermediary between the voltage source and the optical fibers. It mediates the control of light transmission by converting electrical signals into optical modulation, thereby eliminating direct mechanical interaction between moving parts and optical components.
2Reliability
If optical switches with moving parts are used, then light transmission control is achieved, but durability decreases due to corrosion and abrasion
Solution Approach 1:
By replacing mechanical moving parts with a solid-state electrochromic component, the patent eliminates surfaces subject to corrosion and abrasion. The electrochromic layer is contained within a sealed structure with optical fibers, preventing environmental degradation while maintaining light transmission control functionality.
3Reliability
If electrochromic components are used, then reliability and durability are improved, but device structure becomes more complex
Solution Approach 1:
The electrochromic component is nested within a compact structure that integrates the electrochromic layer, ion transfer layer, counterelectrode, and optical fiber tips in a space-efficient arrangement. This nested configuration minimizes the overall device footprint while maintaining all necessary functional layers.
Solution Approach 2:
The patent combines multiple functional layers (electrochromic layer, ion transfer layer, counterelectrode, transparent conductive layers) into a single integrated electrochromic component that directly interfaces with optical fibers. This merging of functions reduces the number of separate components and simplifies the overall device structure.
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
The electrochromic optical switch provides greater reliability and durability by eliminating alignment errors and reducing mechanical wear, while enabling efficient control of light transmission through optical fibers.
Implementation Method 1
electrochromic materials for optical switches... changes light transmittance reversibly with a direct current voltage below 5 V
Data Source
AI summary
A device, a method, and an article of manufacture are disclosed. The device includes a first optical fiber, a second optical fiber, an electrochromic component positioned between tips of the optical fibers, and a voltage source connected to the electrochromic component. The method includes providing an electrochromic component, providing optical fibers and a voltage source, and assembling an optical switch that includes the electrochromic component, the optical fibers, and the voltage source. The voltage source is connected to the electrochromic component. The article of manufacture includes an optical switch with a voltage source connected to an electrochromic component positioned between optical fiber tips.