Tunable Laser Array With Semiconductor Chilling Plate

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Solution Overview

Problem

Current multi-wavelength laser units, especially those with continuously tunable wavelengths, face limitations due to complex structures, narrow tunable ranges, and low reliability, which restrict their application in fields like medical treatment and scientific research.

Innovation Solution

A tunable laser device featuring a semiconductor chilling plate with multiple independent laser units, connected in parallel and encapsulated in a sealed box for precise temperature control and liquid cooling, allowing for continuous wavelength adjustment and compact, reliable operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If optical parametric oscillator with mechanical adjustment is used, then wavelength tunability is achieved, but device complexity and size increase

Engineering Contradiction:

Improvewavelength tunabilityVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device is divided into multiple independent laser units, each capable of emitting a specific wavelength range. By selecting and combining different laser units, the system achieves wavelength tunability without requiring complex mechanical adjustment mechanisms. Each laser unit operates independently, simplifying the overall system architecture.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The semiconductor chilling plate serves multiple functions: it provides thermal management for all laser units, enables wavelength tuning through temperature control, and acts as a mounting platform. This multi-functional design eliminates the need for separate mechanical adjustment devices, reducing system complexity while maintaining wavelength tunability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If optical parametric oscillator with mechanical adjustment is used, then wavelength tunability is achieved, but tuning speed decreases

Engineering Contradiction:

Improvewavelength tunabilityVSAvoidtuning speed

Core Design Contradiction:

Adaptability or versatilityVSSpeed

Solution Approach 1:

The patent replaces mechanical adjustment mechanisms with an electronic control system. The semiconductor chilling plate uses electrical current to adjust temperature, which in turn adjusts the wavelength. This electronic control method achieves much faster tuning speeds compared to mechanical adjustment, while maintaining full wavelength tunability across the desired range.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If optical parametric oscillator with mechanical adjustment is used, then wavelength tunability is achieved, but reliability deteriorates

Engineering Contradiction:

Improvewavelength tunabilityVSAvoidreliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

By replacing mechanical adjustment components (stepping motors, rotating platforms) with an electronic temperature control system, the patent eliminates mechanical wear and failure points. The semiconductor chilling plate provides reliable, contactless wavelength adjustment through electrical control, significantly improving system reliability while maintaining wavelength tunability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The semiconductor chilling plate automatically maintains the optimal temperature for each laser unit through built-in temperature sensing and control. This self-regulating mechanism ensures consistent wavelength output without requiring external mechanical intervention, improving reliability by eliminating the need for manual or motorized adjustment components.

Inventive Principle:

Principle #25Self-service

4Adaptability or versatility

If dye laser unit is used, then wavelength tunability is achieved, but device size increases

Engineering Contradiction:

Improvewavelength tunabilityVSAvoiddevice size

Core Design Contradiction:

Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

Instead of using a single large-scale dye laser system, the patent divides the laser source into multiple compact semiconductor laser units. Each unit is small in size but collectively they provide broad wavelength coverage. This segmented approach maintains wavelength tunability while dramatically reducing the overall device volume compared to traditional dye laser systems.

Inventive Principle:

Principle #1Segmentation

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 device achieves broad-spectrum, continuous tunability with enhanced reliability and reduced size, overcoming the limitations of existing technologies by enabling precise wavelength adjustment and efficient energy management.

Implementation Method 1

a semiconductor chilling plate which is capable of adjusting temperature

Methodology Applied

Scientific EffectTemperature control:

Implementation Method 2

the cooling liquid channel is internally provided with a liquid coolant which is capable of exporting heat from the semiconductor chilling plate

Methodology Applied

Scientific EffectHeat conduction: Conduction (thermal)

Data Source

PatentUS10763645B2Laser generation importing device applied to human body

Publication Date: 2020.09.01 HUA SHANG

AI summary

A laser generation importing device adapted to be applied to the human body includes a tunable laser device. The tunable laser device includes a semiconductor chilling plate which is capable of adjusting temperature, the semiconductor chilling plate is provided with a laser emission array, and the laser emission array includes multiple independent laser units which are capable of emitting different wavelengths.