Medical Laser Pulse Calibration Using Interpolated Mode Tables
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Solution Overview
Problem
Calibrating multiple laser cavities in medical laser systems for various laser pulse modes is inefficient and time-consuming, affecting the accuracy of output laser pulses.
Innovation Solution
A medical laser system with a controller that includes a calibration module to generate categorized calibration tables based on a spectrum matrix, interpolate calibration parameters using a Newtonian interpolation algorithm, and adjust laser pulses to ensure accuracy, utilizing a beam splitter with a polarization-insensitive coating to maintain consistent split ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple laser cavities are calibrated for every available laser pulse mode, then the accuracy of output laser pulses is ensured, but the calibration process becomes inefficient and time-consuming
Solution Approach 1:
The patent performs preliminary calibration only for a subset of representative laser pulse modes rather than all modes. By selecting key representative modes that cover the range of operational parameters, the system establishes baseline calibration data that can be subsequently applied or adjusted for other modes, significantly reducing total calibration time while maintaining adequate accuracy across all operating conditions.
Solution Approach 2:
The patent develops a universal calibration approach where calibration parameters determined for one laser cavity can be transferred and applied to multiple other laser cavities. This multi-functional calibration methodology allows a single calibration process to serve multiple cavities and modes, reducing the overall calibration burden while ensuring consistent performance across the laser system.
2Adaptability or versatility
If multiple laser cavities are used to generate various laser pulse modes, then the versatility of the medical laser system is improved, but the complexity of calibration increases
Solution Approach 1:
The patent segments the calibration process into distinct categories based on laser pulse modes. By dividing the comprehensive calibration task into mode-specific calibration tables and representative subset calibrations, the system manages the complexity of multiple laser cavities and modes through organized, modular calibration procedures rather than attempting a monolithic calibration approach.
Solution Approach 2:
The patent creates calibration parameter templates or models from representative laser pulse modes that can be copied and adapted for other modes. By establishing calibration data from key representative modes, the system can generate or infer calibration parameters for additional modes through parameter transfer and adjustment, reducing the need to perform independent calibration for every single mode and cavity combination.
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 system efficiently calibrates laser pulses across multiple cavities, ensuring accurate and stable output laser pulses with improved consistency and reduced calibration time.
Implementation Method 1
a beam splitter configured to receive and reflect a portion of the at least one laser pulse received from the rotating mirror
Data Source
AI summary
A medical laser system for outputting laser pulses includes at least one laser cavity configured to generate at least one laser pulse, a rotating mirror configured to receive and reflect the at least one laser pulse, a beam splitter configured to receive and reflect a portion of the at least one laser pulse received from the rotating mirror, an energy-sensing device configured to detect the portion of the at least one laser pulse, an energy measurement assembly configured to generate a measurement signal based on the portion of the at least one laser pulse detected by the energy-sensing device, and a controller. The controller may include a calibration module. The calibration module may be configured to generate at least one categorized calibration table, determine calibration parameters, interpolate the calibration parameters, and cause the at least one laser cavity to generate at least one calibrated laser pulse.