Optical Fiber Laser Coupling Layout for Stray Light Shielding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Optical devices face challenges in suppressing the negative effects caused by stray light, which can interfere with the operation and integrity of the device, particularly affecting the bonding materials and optical parts.
Innovation Solution
The optical device incorporates a shielding portion and a reflecting portion to redirect stray light away from critical components, ensuring it does not irradiate the first optical part and bonding materials, thereby preventing damage and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If optical parts are arranged to transmit laser beam to optical fiber, then laser beam transmission efficiency is improved, but stray light reflected on optical parts irradiates other optical parts causing negative effects
Solution Approach 1:
A shielding portion is introduced as an intermediary element between the first optical part and the second optical part. This shielding portion blocks stray light reflected from the second optical part from reaching the first optical part, thereby eliminating the harmful interaction while preserving the optical transmission path.
Solution Approach 2:
The optical device is segmented into distinct functional zones: a light emitting device, multiple optical parts for beam transmission, and a dedicated shielding portion for stray light management. This segmentation allows each component to perform its specific function independently, with the shielding portion specifically addressing stray light issues without interfering with the main optical path.
2Reliability
If shielding portion is added to block stray light, then negative effects of stray light are suppressed, but device complexity increases
Solution Approach 1:
The shielding portion is strategically positioned only where stray light from the second optical part would reach the first optical part. This localized approach provides protection exactly where needed without adding shielding elements throughout the entire device, thereby minimizing the increase in structural complexity while maintaining device integrity.
Solution Approach 2:
The shielding portion serves as a simple intermediary barrier that passively blocks stray light without requiring complex active control systems or multiple moving parts. This straightforward implementation achieves reliable stray light suppression with minimal added 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 configuration effectively suppresses the negative effects of stray light, preventing damage to the bonding materials and maintaining the integrity of the optical device, especially under high output laser beams and prolonged usage.
Implementation Method 1
shield stray light reflected on the second optical part
Implementation Method 2
shielding portion arranged on the base and configured to shield stray light
Implementation Method 3
reflecting portion positioned with an offset in an opposite direction to a traveling direction of the laser beam... configured to reflect stray light reflected on a second optical device
Data Source
AI summary
An optical device includes: a base; a light emitting device arranged on the base and configured to output a laser beam; a plurality of optical parts arranged on the base and configured to transmit the laser beam output from the light emitting device to an optical fiber to couple with the optical fiber, the plurality of optical parts including a first optical part and a second optical part; and a shielding portion arranged on the base and configured to shield stray light reflected on the second optical part so as to avoid the stray light from being irradiated to the first optical part.