Efficient coupling output method of high-peak power laser for cleaning

A coupling output and high peak value technology, which is applied in the field of efficient coupling output of high peak power lasers for cleaning, can solve problems such as inability to guarantee applicability and difficulty in ensuring the quality of pulsed laser beams, to prevent high-power damage, reduce heat accumulation, prevent damage effect

CN111082297AInactive Publication Date: 2020-04-28山东产研强远激光科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-04-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an efficient coupling output method of high-peak power laser for cleaning. In order to achieve the object, the laser adopts an MOPA structure (i.e., the laser generated by an oscillator is amplified by an amplifier and then output), and an oscillator resonant cavity of the laser adopts a dynamic asymmetric stable cavity, so that a better laser output mode can be guaranteed,higher power can be achieved, the offset sensitivity of a lens is low, the effective area of a crystal rod in the amplifier is filled with light spots, the extraction efficiency of the amplifier is improved, and the LD damage caused by overlarge laser light spots can be avoided.
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Description

technical field

[0001] The invention relates to the technical field of laser cleaning, in particular to an efficient coupling output method of high peak power laser for cleaning. Background technique

[0002] Laser cleaning is an emerging green cleaning method, which has received more and more attention this year. Compared with traditional cleaning methods, laser cleaning has the advantages of high precision, energy saving and environmental protection. Peak power is the key factor affecting the laser cleaning effect. Currently, cleaning lasers on the market are mainly divided into two types: optical fiber and solid-state. Solid-state lasers can break through high peak power at high average laser power, and have obvious advantages over fiber lasers in cleaning. However, because the beam quality of solid-state lasers is poorer than that of fiber lasers, it is difficult to couple into the output of energy-transmitting fibers, and it is easy to cause damage to the laser coupler ...

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Embodiment Construction

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0024] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to t...