Crystal-Based Optical Assembly for Stable Laser Beam Splitting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current optical devices with backlight monitoring functions using plating splitter films suffer from poor stability due to environmental changes and require complex processes, leading to a high risk of failure.
Innovation Solution
An optical assembly utilizing a crystal with a specific structure that splits the laser beam through birefringence, eliminating the need for a splitter film by generating a first beam for data transmission and a second beam for real-time power monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plating splitter film is used to split light in optical devices, then light splitting function is achieved, but stability deteriorates due to temperature and environmental changes
Solution Approach 1:
The patent removes the plating splitter film from the optical system and replaces it with a crystal-based light splitting mechanism. The crystal structure inherently provides birefringence-based beam separation without requiring temperature-sensitive film layers, thereby eliminating the source of environmental sensitivity while maintaining the light splitting function.
Solution Approach 2:
The patent transitions from using a film-based splitting mechanism to a crystal-based mechanism that exploits birefringence properties. This parameter change in the physical mechanism of light splitting (from film interference to crystal birefringence) fundamentally improves stability against temperature and environmental variations.
2Ease of manufacture
If a plating splitter film is used for light splitting, then light splitting is achieved, but device complexity increases due to multiple process steps
Solution Approach 1:
The patent eliminates the entire film plating process chain (film layer designing, material purchasing, plating, inspection, reliability testing) by replacing it with a crystal component that can be directly integrated into the optical assembly, significantly reducing manufacturing complexity and process steps.
Solution Approach 2:
The crystal structure integrates multiple functions (light splitting, beam direction control, and polarization separation) into a single component, whereas the film-based approach required separate process steps for each function. This merging reduces the overall number of manufacturing operations required.
3Reliability
If a plating splitter film is used in optical devices, then light splitting function is provided, but risk of failure increases
Solution Approach 1:
By removing the plating splitter film and its associated manufacturing processes from the system, the patent eliminates the sources of potential failure related to film quality, adhesion, and process variability. The crystal-based approach provides a more robust and failure-resistant solution.
Solution Approach 2:
The crystal structure provides inherent stability and reliability against environmental changes before failures can occur, acting as a preventive measure. The birefringence property of crystals is fundamentally stable across temperature ranges, providing built-in protection against the kinds of failures that plague film-based systems.
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 crystal-based optical assembly achieves stable light splitting and reduces the risk of device failure by eliminating the need for film-based light splitting, simplifying the manufacturing process and enhancing the reliability of optical devices.
Implementation Method 1
The crystal (1) is used to split the laser beam incident thereon to generate a first beam and a second beam
Data Source
AI summary
Disclosed are an optical assembly and a manufacturing method therefor. The optical assembly comprises a laser component (2) and a crystal (1). The crystal (1) is disposed on the laser component (2). The laser component (2) is used to produce a laser beam. The crystal (1) is used to split the laser beam incident onto the crystal (1) so as to generate a first beam (15) and a second beam (16). The first beam (15) is used for front light emission and the second beam (16) is used for backlight monitoring. The optical assembly can split a laser beam to achieve the backlight monitoring function without adding a splitter film. It has good stability in light splitting and reduces the risk of failure in an optical device.