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Optical Cross-Coupling Suppression System for Wavelength Beam Combining Laser Systems

A laser system, cross-coupling technology, applied in the field of laser systems, can solve problems such as inferior to the optimal brightness WBC system

Active Publication Date: 2020-01-14
PANASONIC OF NORTH AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, optical cross-coupling between beam emitters may result in conventional WBC systems with less than optimal brightness

Method used

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  • Optical Cross-Coupling Suppression System for Wavelength Beam Combining Laser Systems
  • Optical Cross-Coupling Suppression System for Wavelength Beam Combining Laser Systems
  • Optical Cross-Coupling Suppression System for Wavelength Beam Combining Laser Systems

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Embodiment Construction

[0030] Aspects and embodiments relate generally to the field of tuning laser sources to high power and brightness using external cavities, and more particularly to methods and apparatus for external cavity beam combining using one-dimensional or two-dimensional laser sources. In one embodiment, the external cavity system includes a one-dimensional or two-dimensional laser element, an optical system, a dispersion element and a partially reflective element. An optical system is one or more optical components that perform two basic functions. The first function is to superimpose all laser elements onto the dispersive element along the beam combining dimension. The second function is to ensure that all elements along the non-beam combining dimension propagate orthogonally to the output coupler. In various embodiments, the optical system introduces as little loss as possible. Thus, these two functions will enable a single resonator to be used for all laser elements.

[0031] In ...

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Abstract

In various embodiments, the wavelength beam combining laser system includes an optical cross-coupling suppression system and / or a partially reflective output coupler designed to reduce or substantially eliminate unwanted back reflections of stray light.

Description

[0001] related application [0002] This application claims the benefit of and priority to US Provisional Patent Application No. 62 / 089,839, filed December 10, 2014. The entire content of this application is hereby incorporated by reference. technical field [0003] In various embodiments, the present invention relates to laser systems, particularly wavelength beam combining laser systems including a system for suppressing optical cross-coupling between beam emitters. Background technique [0004] High power laser systems are used in many different applications such as welding, cutting, drilling and material processing. Such laser systems typically include a laser transmitter from which laser light is coupled to an optical fiber (or simply "fiber"), and an optical system that focuses the laser light from the fiber onto the workpiece to be processed. Optical systems are generally designed to produce the highest quality laser beam or equivalently a beam with the lowest beam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/40H01S5/00
CPCH01S5/005H01S5/4012G02B27/1006H01S5/4062
Inventor B·陈
Owner PANASONIC OF NORTH AMERICA