Picosecond laser two-way two-stage amplification device

A picosecond laser and amplification device technology, which is applied in the direction of laser devices, lasers, laser components, etc., can solve the problems of low amplification gain, poor output power stability, and low output spot quality, achieving high amplification gain and improving amplification gain , High-quality output spot effect

Pending Publication Date: 2018-09-28
SHENZHEN HYMSON LASER INTELLIGENT EQUIP CO LTD
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Problems solved by technology

[0003] In order to solve the above-mentioned problems in the prior art, the present invention provides a picosecond laser dual-pass two-stage amplification device to solve the problem of low amplification gain, poor output power stability, and low output spot quality of the existing picosecond seed light amplification device other shortcomings

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  • Picosecond laser two-way two-stage amplification device

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in the preferred embodiment are only for convenience of description, and are not used to limit the scope of the present invention. The scope of implementation and the change or adjustment of its relative relationship shall also be regarded as the scope of implementation of the present invention without substantive changes in technical content.

[0030] Such as figure 1 As shown, the picosecond laser double-pass two-stage amplification device includes a picosecond seed source 1, a polarizing beam splitter 3, a first dichroic mirror 7, a second dichroic mirror 9 and a third dichroic mirror 11, wherein,

[0031] The picosecond seed source 1 is located at the injection end of the polarization beam splitter 3, and is used to generate seed light and inject it into the polarizat...

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Abstract

The invention relates to a picosecond laser two-way two-stage amplification device. The device comprises a picosecond seed source, a polarizing beam splitter, a first dichronic mirror, a second dichronic mirror, and a third dichronic mirror, wherein the picosecond seed source is at an injection end of the polarizing beam splitter and is used for generating seed light and injecting the seed light into the polarizing beam splitter, the polarizing beam splitter is used for transmitting seed light parallel to the polarizing direction so as to filter seed light vertical to polarization, the first dichronic mirror is on an optical axis transmitting the seed light of the polarizing beam splitter, the mirror surface of the first dichronic mirror and the optical axis has a certain angle, the seconddichronic mirror is on an optical axis reflecting the seed light of the first dichronic mirror, and the mirror surface of the second dichronic mirror and the optical axis has a certain angle. The picosecond laser two-way two-stage amplification device uses a first laser crystal and a second laser crystal so as to perform two-stage amplification; the amplification gain can be increased by two orders of magnitude to 10<5>, so that the picosecond laser two-way two-stage amplification device has the advantages of high amplification gain, stable output power, and high-quality output spot, and theamplified picosecond laser pulse can be widely used in the field of micro-processing.

Description

technical field [0001] The invention relates to the technical field of picosecond laser amplification, in particular to a picosecond laser dual-pass two-stage amplification device. Background technique [0002] With the rapid development of laser technology, lasers have been used in various fields such as scientific research, biology, medical treatment, material processing, communication, and national defense. Because ultrafast lasers have the advantage of "cold processing" in material processing, picosecond lasers with narrow pulse width, high peak power, and high single pulse energy have attracted widespread attention in the industry. However, limited by the damage caused by the extremely high peak power density to the SESAM mode-locking device, high-power picosecond lasers cannot be directly generated from the oscillator, which prompted the emergence of picosecond seed optical amplification devices. However, the existing picosecond seed optical amplification devices have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/23
CPCH01S3/2316
Inventor 周宇超林国栋张松岭赵盛宇刘奇福宋玉立梁达科周逸
Owner SHENZHEN HYMSON LASER INTELLIGENT EQUIP CO LTD
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