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Neodymium-doped lithium yttrium fluoride nanosecond pulsed blue laser

A nanosecond pulse, neodymium lithium fluoride technology, applied to lasers, laser components, phonon exciters, etc., can solve problems such as complex structures, and achieve high stability, high sum-frequency efficiency, repetition frequency and timing. control effect

Active Publication Date: 2020-04-03
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the complex structure of the prior art, and to provide a miniaturized and compact 486.1nm blue pulse laser solution

Method used

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  • Neodymium-doped lithium yttrium fluoride nanosecond pulsed blue laser

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Embodiment Construction

[0021] The technology of the present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0022] Such as figure 1 As shown, the Nd-doped lithium yttrium yttrium nanosecond pulsed blue light laser of the present invention is characterized in that its structure includes a first branch 1 of a laser resonator, a second branch 2 of a laser resonator, a shared branch 3 of a laser resonator and a driver 4. The positional relationship of the above components is as follows;

[0023] The first branch 1 of the laser resonator includes a first pump source 1-1, a first pump coupling lens group 1-2, a first cavity mirror 1-3, a first laser crystal 1-4, a first Polarizer 1-5, first wave plate 1-6 and first Q-switching crystal 1-7, the parameters and positional relationship of each component are as follows:

[0024] The first pumping source 1-1 is an 806nm ...

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Abstract

A neodymium-doped yttrium lithium fluoride Nd:YLF nanosecond pulsed blue laser belongs to the technical field of lasers. The sum frequency in two fundamental frequency nanosecond pulsed lasers of 903nm and 1053 nm generated by using the Nd:YLF crystal electro-optic Q-switched laser of the laser diode pumping is used to obtain the solar dark line blue laser output of 486 nm. The invention has thecharacteristics of compact structure, high peak power and good beam quality, and is particularly suitable for application in the fields such as marine radar detection and underwater communication.

Description

technical field [0001] The invention relates to an all-solid-state laser, in particular to a neodymium-doped lithium yttrium fluoride (hereinafter abbreviated as Nd:YLF) nanosecond pulsed blue light laser. Background technique [0002] In the field of laser research, the blue laser is a relatively new visible laser light source, which has attracted much attention due to its more and more applications in the fields of national defense, industry and medical treatment. In recent years, blue light lasers have been applied in the fields of laser underwater communication, ocean detection, high-density optical storage, laser display, spectral analysis, bioengineering and laser medical treatment. In laser underwater communication and ocean detection systems, 450-550nm blue-green band laser light sources are generally used, among which blue light has stronger penetrating ability in deep sea areas. The Fraunhofer dark line exists in the solar radiation spectrum due to the absorption ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/0941H01S3/10H01S3/115H01S3/108H01S3/091H01S3/06H01S3/16
CPCH01S3/0623H01S3/0912H01S3/0941H01S3/10061H01S3/108H01S3/115H01S3/1611H01S3/1653
Inventor 马剑朱小磊陆婷婷
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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