Pulse Laser Optical Cavity With Dynamic Path Control for High Output

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Solution Overview

Problem

Current high-power lasers are cumbersome, large, and difficult to configure, limiting their application in various fields due to size, weight, and cost constraints, while low-power lasers lack energy source capabilities.

Innovation Solution

A high intensity pulse laser generation system with an optical cavity and optical path modification device, utilizing magneto-strictive materials and mirror devices to increase laser beam intensity efficiently, allowing for compact and cost-effective high intensity pulse laser production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If conventional high-power laser systems are used to achieve high energy output, then laser intensity is improved, but device size and complexity increase significantly

Engineering Contradiction:

Improvelaser energy outputVSAvoidsystem complexity

Core Design Contradiction:

PowerVSDevice complexity

Solution Approach 1:

The patent employs dynamic modulation of the optical path using a spatial light modulator (SLM) to control laser beam circulation. The SLM dynamically changes the optical path configuration to enable flexible intensity control without requiring complex mechanical moving parts, thus achieving high power output with reduced device complexity

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the circulation number parameter dynamically to control laser beam intensity. By adjusting how many times the beam circulates through the optical cavity, the system can precisely control output intensity from low to high levels without physical reconfiguration, resolving the contradiction between power output and device complexity

Inventive Principle:

Principle #35Parameter changes

2Power

If conventional high-power laser systems are used to achieve high energy output, then laser intensity is improved, but device size increases

Engineering Contradiction:

Improvelaser energy outputVSAvoiddevice size

Core Design Contradiction:

PowerVSVolume of moving object

Solution Approach 1:

The patent implements a nested optical path configuration where the laser beam circulates through a compact optical cavity multiple times. The optical components are arranged in a nested manner within a small volume, allowing the beam to traverse an extended effective path length without increasing external device dimensions, thus achieving high energy output in a compact form factor

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The system uses a folded optical path design that utilizes three-dimensional spatial arrangement to extend the beam circulation path within a compact volume. By bending the optical path through mirrors and the SLM in multiple dimensions, the system achieves long effective interaction length without increasing the external footprint of the device

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Power

If conventional high-power laser systems are used to achieve high energy output, then laser intensity is improved, but ease of configuration deteriorates

Engineering Contradiction:

Improvelaser energy outputVSAvoidease of configuration

Core Design Contradiction:

PowerVSEase of operation

Solution Approach 1:

The patent replaces mechanical optical path switching mechanisms with a spatial light modulator (SLM) that uses optical field modulation to control beam circulation. This electronic/optical control system eliminates the need for complex mechanical moving parts, making the system easier to configure and reconfigure for different applications while maintaining high power output capability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical 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 system achieves a compact, efficient, and reliable high intensity pulse laser generation, reducing size, weight, and cost, while enhancing energy output, making it suitable for diverse applications including material processing, energy generation, and defense.

Implementation Method 1

the laser device emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation

Methodology Applied

Scientific EffectOptical amplification: Laser

Implementation Method 2

the optical path modification device is configured to repeatedly change a spatial direction of the laser beam propagating on the first optical path

Methodology Applied

Scientific EffectMagnetostriction: Magnetostriction

Data Source

PatentUS11784454B1High intensity pulse laser generation system and method

Publication Date: 2023.10.10 BLUE LASER FUSION INC

AI summary

In an example, the present invention provides a high intensity pulse laser generation system. The system has a variety of elements. The system has an optical cavity maintained in a vacuum, e.g., 300 Torr and less. In an example, the optical cavity is configured to increase an intensity of a laser beam comprising a pulse from a first energy power intensity to a second higher energy power intensity propagating on a first optical path configured within the optical cavity by circulating or reciprocating at least a portion of the laser beam.