Laser Pump and Doped Fiber Light Source Module
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optical ophthalmology detection apparatuses face issues with poor resolution, high cost, and system instability due to the use of super luminescent diodes, which have limitations in bandwidth and longevity.
Innovation Solution
A light source module comprising a laser pump unit, a gradient-index lens unit, and a fiber unit, including Yb-doped or Er-doped double-clad fibers, that generates a condensed beam for high-resolution optical signals with low decay and stability, using appropriate pump power and core sizes to achieve low cost and large bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a super luminescent diode (SLD) is used as the light source, then bandwidth and resolution are improved, but cost increases and system stability deteriorates
Solution Approach 1:
The patent changes the fundamental parameters of the light source by using a laser pump unit with specific pump power (30-300mW for core pump, 100mW-10W for cladding pump) coupled with doped fibers (Yb-doped, Er-doped, or Tm-doped) of optimized length and core diameter. This parameter optimization enables the system to achieve high bandwidth and resolution comparable to SLD while maintaining superior stability and lower cost through the laser-based architecture
2Adaptability or versatility
If a super luminescent diode (SLD) is used as the light source, then bandwidth is improved, but cost increases
Solution Approach 1:
The patent replaces the expensive SLD component with a laser pump unit combined with doped fiber architecture. The laser pump unit with optimized pump power and doped fiber configuration provides comparable or superior bandwidth performance at lower cost, effectively substituting a high-cost component with a more economical alternative that maintains or enhances performance
3Productivity
If conventional optical ophthalmology detection apparatus is used, then detection is performed, but resolution is poor due to different optical characteristics of tissues
Solution Approach 1:
The patent applies local quality optimization by using a laser pump unit with specific pump power and doped fiber configuration that generates light with optimized spectral characteristics. The fiber unit with specific length, doping material, and core size creates localized spectral properties that improve resolution for detecting tissues with varying optical characteristics, enabling better differentiation of eye structures
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 solution provides optical signals with bandwidth and resolution comparable to SLD sources, while being cost-effective and maintaining system stability over time.
Implementation Method 1
The laser pump unit generates a laser source
Implementation Method 2
The lens unit converts the laser source into a condensed beam
Implementation Method 3
The fiber unit receives the condensed beam and emits an optical signal
Data Source
AI summary
A light source module of an optical apparatus is disclosed. The light source module includes a laser pump unit, a lens unit, and a fiber unit. The laser pump unit generates a laser source. The lens unit converts the laser source into a condensed beam. The fiber unit receives the condensed beam and emits an optical signal. The light source module can achieve effects of low cost, large bandwidth, high resolution, and high stability with well-designed pump power of the laser pump unit, and length, doping material, and core size of the fiber unit.