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Acousto-optic system with phase shift reflector

A technology of positioner and laser light, used in instruments, optics, lasers, etc., can solve problems such as being unsuitable for high-power laser applications and expensive half-wave plates

Pending Publication Date: 2022-07-15
ELECTRO SCI IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Conventional half-wave plates designed to phase shift light at wavelengths in the range from 9 μm (or up and down) to 11 μm (or up and down) (eg, 9.2 μm, 9.5 μm, 10.6 μm, etc.) are undesirably expensive and typically Ground is not suitable for high power laser applications, such as utilizing CO 2 Laser-based material processing for lasers

Method used

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  • Acousto-optic system with phase shift reflector
  • Acousto-optic system with phase shift reflector
  • Acousto-optic system with phase shift reflector

Examples

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Embodiment Construction

[0020]Example specific examples are described herein with reference to the accompanying drawings. In the drawings, the sizes, positions, etc. of components, features, components, etc., and any distances therebetween, are not necessarily to scale, but are exaggerated for clarity, unless expressly stated otherwise. In the drawings, the same numerals refer to the same components throughout. Thus, the same or similar numerals may be described with reference to other drawings even if such numerals are neither mentioned nor described in the corresponding drawings. Also, even components not indicated by reference numerals may be described with reference to other figures.

[0021] The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. As used her...

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Abstract

The present invention relates to a beam locator generally characterized to include a first acousto-optic (AO) deflector (AOD) operable to diffract an incident beam of linearly polarized laser light, wherein the first AOD has a first diffraction axis and wherein the first AOD is oriented such that the first diffraction axis has a predetermined spatial relationship with a polarization plane of the linearly polarized laser light. The beam locator may include at least one phase shifted reflector disposed within a beam path along which light may propagate from the first AOD. The at least one phase shift reflector may be configured and oriented to rotate a polarization plane of light diffracted by the first AOD.

Description

[0001] Cross-references to related applications [0002] This application claims the benefit of US Provisional Patent Application No. 62 / 562,047, filed September 22, 2017, which is incorporated herein by reference in its entirety. Background technique [0003] Acousto-optic (AO) devices, sometimes referred to as Bragg cells, use acoustic waves at radio frequencies to diffract and displace light. These devices are commonly used for Q-switching, signal modulation in telecommunication systems, laser scanning and beam intensity control in microscopy systems, frequency shifting, wavelength filtering in spectroscopy systems. Many other applications are suitable for using acousto-optic devices. For example, an AO deflector (AOD) can be used in laser-based material processing systems. [0004] In a typical AO device, the converter is attached to an AO medium (also referred to as an "AO cell"), typically a crystal or glass, which is suitably transparent to the wavelengths of light to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/29G02F1/33G02B26/06G02B26/08
CPCG02F1/291G02F1/33G02B26/06G02B26/0816G02F1/0136G02F2201/16G02F1/332B23K26/064B23K26/0648B23K26/0643G02B26/0808G02B6/42G02F1/00G02F1/292H01S3/1068H01S5/124H01S5/145
Inventor 詹姆斯·布鲁克伊塞杰恩·克雷能特杰瑞德·瑞智特尔克尔特·伊藤
Owner ELECTRO SCI IND INC