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Dual Crystal Infrared Laser

A laser and double crystal technology, applied in the laser field, can solve problems such as changes and increased equipment investment costs

Active Publication Date: 2019-09-06
SHENZHEN JPT OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In practical applications, the parameters of high frequency and low frequency can work differently. The average power of the pulsed light formed by the traditional method will change at different frequencies, and it cannot have good power stability at both high repetition frequency and low repetition frequency. 1064nm pulsed light with high repetition rate and low repetition rate needs to be output by different equipment, which leads to an increase in the investment cost of laser processing equipment

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  • Dual Crystal Infrared Laser
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Embodiment Construction

[0018] In order to facilitate the understanding of the present invention, the following will describe the present invention more fully. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0020] see figure 1 , is a dual-crystal infrared laser 100 in a preferred embodiment of the present invention, which is used to output 1064nm pulsed light. The double-crystal infrared laser 100 includ...

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Abstract

The invention provides a dual crystal infrared laser comprising a first pump laser, a second pump laser, a first focusing assembly, a second focusing assembly, a resonant assembly, a first laser crystal, a second laser crystal and a Q-switched crystal. A lase resonant cavity is formed by that resonant assembly. When the low-repetition-rate 1064nm pulse light is outputted, the first pump laser outputs pump light and the first laser crystal produces 1064nm laser light. When the high-repetition-rate 1064nm pulse light is outputted, the second pump laser outputs pump light and the second laser crystal produces 1064nm laser light. Under the modulation of the Q-switched crystal, the 1064nm pulse light is formed in the laser resonant cavity and outputted from the laser resonant cavity. The outputted 1064nm pulse light power can be kept stable when the single laser resonant cavity switches between the low repetition rate output and the high repetition rate output through the difference in energy level lifetime of the first laser crystal and the second laser crystal.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a double-crystal infrared laser. Background technique [0002] Laser is one of the major inventions in modern science and technology. Among them, the end-pumped 1064nm laser is used in the field of processing, and its application value is particularly prominent in metal, non-metal and precision processing. Because the end-pump can obtain high beam quality, the end-pump infrared 1064nm laser with excellent beam quality and long-term stable operation is of great significance to the growing laser processing industry. [0003] End-pumped lasers on the market are generally single-ended or double-ended pumped laser crystals, and then use Q-switching components to adjust the resonator to form pulsed light. In practical applications, the parameters of high frequency and low frequency can work differently. The average power of pulsed light formed by traditional methods will change at diff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/091H01S3/081H01S3/11H01S3/16H01S3/06
Inventor 任戬
Owner SHENZHEN JPT OPTO ELECTRONICS CO LTD