Compact Fiber Laser Beam Expander Collimation System
A fiber laser and laser collimation technology, used in optics, optical components, instruments, etc., can solve the problems of single function, poor portability, inconvenient use, etc., and achieve the effect of convenient use and compact structure
Active Publication Date: 2022-03-04
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
[0003] However, the current beam expander collimation system has a single function. If multiple functions such as laser beam expander collimation, target imaging, and laser performance monitoring are to be realized at the same time, it is often necessary to set up a large number of splitting optical paths, involving a large number of optical devices, and the system is complex. Large size, poor portability, inconvenient to use
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0027] In addition,...
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Abstract
The invention provides a compact optical fiber laser beam expansion and collimation system, which includes a laser collimating emission end cap, a sampling monitoring end cap, a special-shaped mirror, an imaging mirror, an imaging lens, an imaging device, a concave lens and a convex lens. The special-shaped mirror has at least a first side for main laser incident, a second side for main laser output and target reflected or scattered light incident, a third side for imaging target reflected or scattered light to exit and for The fourth side from which light exits is monitored. The invention introduces a special-shaped mirror into the traditional optical fiber collimation system, which can simultaneously realize multiple functions such as laser beam expansion collimation emission, target imaging and emission laser performance monitoring, and has the advantages of compact structure and convenient use.
Description
technical field [0001] The invention relates to the technical field of fiber laser devices, in particular to a compact fiber laser beam expansion and collimation system. Background technique [0002] Beam expansion collimation is widely used in various applications of fiber lasers to compress the large divergence angle beam output from the fiber and to collimate the emission. [0003] However, the current beam expander collimation system has a single function. If multiple functions such as laser beam expander collimation, target imaging, and laser performance monitoring are to be realized at the same time, it is often necessary to set up a large number of splitting optical paths, involving a large number of optical devices, and the system is complex. The volume scale is large, the portability is poor, and it is inconvenient to use. Contents of the invention [0004] Aiming at the defects existing in the prior art, the present invention provides a compact optical fiber las...
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IPC IPC(8): G02B27/09
CPCG02B27/095
Inventor 马阎星罗根何姝玥吴坚喻湘荣周朴司磊许晓军陈金宝
Owner NAT UNIV OF DEFENSE TECH