Semiconductor Laser Excited Solid State Laser Temperature Control
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Solution Overview
Problem
Semiconductor laser excited solid state laser devices face challenges in producing stable second harmonic generation light with low optical noise while minimizing power consumption, particularly in portable devices that use a single temperature adjustment configuration, which complicates optimizing the settings for both the semiconductor laser and solid state laser module.
Innovation Solution
A semiconductor laser excited solid state laser device with individual temperature control for the semiconductor laser and solid state laser module, using a single temperature adjustment device to maintain optimal temperatures for stable output and low noise, ensuring the semiconductor laser operates in a single transverse mode and the solid state laser module has maximum output efficiency and low optical noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual temperature control devices are provided for both the semiconductor laser and solid state laser module, then the output stability and optical noise performance are improved, but the power consumption increases
Solution Approach 1:
The patent merges the temperature control functions for the semiconductor laser and solid state laser module into a single integrated temperature control device. This unified approach maintains the ability to independently control both components' temperatures while reducing overall system complexity and power consumption compared to separate control devices.
Solution Approach 2:
The single temperature control device is designed to perform multiple functions: it controls the temperature of both the semiconductor laser and the solid state laser module simultaneously. This multi-functional design eliminates the need for separate temperature control devices while maintaining optimal temperature management for both components.
2Use of energy by moving object
If a single temperature adjustment configuration is used to reduce power consumption, then portability is improved, but the ability to simultaneously optimize setting parameters of both laser components deteriorates
Solution Approach 1:
The patent implements dynamic temperature control where the single temperature adjustment device can adaptively adjust temperatures based on real-time operational conditions. The control unit dynamically modifies temperature settings for both the semiconductor laser and solid state laser module to maintain optimal performance across varying operating conditions, enabling parameter optimization without requiring multiple fixed temperature control devices.
Solution Approach 2:
The system incorporates feedback mechanisms where the control unit continuously monitors the output characteristics and temperature of both laser components. Based on this feedback, the control unit automatically adjusts the temperature settings to maintain optimal performance, enabling the single temperature control device to achieve parameter optimization that would otherwise require multiple independent control systems.
3Reliability
If the semiconductor laser operates at temperatures preventing mode hopping, then output stability is improved, but the temperature flexibility for optimizing solid state laser module performance is reduced
Solution Approach 1:
The patent segments the temperature control into independent zones for the semiconductor laser and solid state laser module, even though they share a single temperature control device. This segmentation allows each component to be maintained at its optimal temperature independently, enabling the semiconductor laser to operate in a stable temperature range that prevents mode hopping while the solid state laser module operates at temperatures optimized for its performance characteristics.
Solution Approach 2:
The system applies local quality control by providing different temperature conditions to different components based on their specific requirements. The semiconductor laser is maintained at a temperature that prevents mode hopping, while the solid state laser module is maintained at a temperature optimized for its output efficiency and noise performance, achieving localized optimization through a unified control system.
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 enables the production of stable second harmonic generation light with low optical noise and reduced power consumption, achieving the desired output levels while maintaining portability and efficiency.
Implementation Method 1
a semiconductor laser which outputs a single transverse mode excitation light of fixed wavelength
Implementation Method 2
a solid state laser module which has maximum output efficiency at the set temperature and which generates, from the excitation light, an output light of a predetermined output level
Data Source
AI summary
A semiconductor laser excited solid state laser device and method. The device including a semiconductor laser; a driving device; a solid state laser module which has maximum output efficiency at the set temperature and which generates, from excitation light, an output light of a predetermined output level when the optical noise is at or below a fixed level and the output level of the excitation light is the set output level; a single temperature adjustment device which adjusts the temperature of the semiconductor laser and the temperature of the solid state laser module; and a control device which controls the driving device such that the output light will be at the predetermined output level and controls the temperature adjustment device such that the temperature of the semiconductor laser and the solid state laser module will be the set temperature.