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Laser amplification device and laser capable of realizing high-power structured light field laser output

A laser amplification and structured light technology, applied in lasers, laser parts, laser parts, etc., can solve the problem of great influence on beam quality, and achieve the effect of low heat generation density, small size, and effective thermal management of crystals

Active Publication Date: 2021-09-21
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for such a laser, since the flowing liquid will affect the laser transmission, the unavoidable jitter of the liquid flow has a great influence on the beam quality of the output laser

Method used

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  • Laser amplification device and laser capable of realizing high-power structured light field laser output
  • Laser amplification device and laser capable of realizing high-power structured light field laser output
  • Laser amplification device and laser capable of realizing high-power structured light field laser output

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Effect test

Embodiment 1

[0034] See attached figure 1 , this embodiment discloses a laser amplification device that can realize high-power structured light field laser output, and the laser amplification device is based on a direct liquid-cooled array gain module. The laser amplification device includes a direct liquid-cooled array gain module 1 (hereinafter referred to as the gain module), a pump system and a 4f beam amplification system. The structure and functions of each system are as follows:

[0035] Pumping system: used to inject pumping light D4 into the gain module 1 to achieve particle number inversion to obtain laser gain.

[0036] Gain module: used to generate laser gain under the excitation of the pump light D4. Its core structure is to arrange several pieces of gain media in an array, and form micro-channels between adjacent gain media. The laser cooling fluid flows through the micro-channels to take away the heat of the gain media and realize the cooling of the gain media. The light ...

Embodiment 2

[0040] See attached figure 1 , this embodiment discloses a laser that can realize high-power structured light field laser output, and the laser is based on a direct liquid-cooled array gain module. The laser includes a direct liquid-cooled array gain module 1 (hereinafter referred to as the gain module), a pump system, a structured light seed light source 2 and a 4f beam amplification system. The structure and functions of each system are as follows:

[0041] Pumping system: used to inject pumping light D4 into the gain module 1 to achieve particle number inversion to obtain laser gain.

[0042]Gain module: used to generate laser gain under the excitation of the pump light D4. Its core structure is to arrange several pieces of gain media in an array, and form micro-channels between adjacent gain media. The laser cooling fluid flows through the micro-channels to take away the heat of the gain media and realize the cooling of the gain media. The light transmission window set ...

Embodiment 3

[0047] Such as figure 2 As shown, this embodiment discloses the structure of the gain module 1 . The gain module 1 includes a number of sheet-type gain media, each of which is arranged in an array, and fixedly stacked in the module inner frame 15 through the fixing strip 11, the module inner frame 15 is fixed in the module outer frame 8, and is connected with the module outer frame 8 There is a gap, the outer frame of the module 8 is provided with a light-through window 9 for transmitting the laser light D2 and the pump light D4, the laser cooling liquid 16 flows into the inner cavity of the gain module through the diversion cone 7, and the gain medium is separated by the flow channel separator 17 to form In the flat micro-channel, the laser cooling fluid 16 flows into the micro-channel and the gap between the inner and outer frames to cool the gain crystal and the optical window 9 . The gain module 1 is designed as a separate structure with inner and outer frames. The inner...

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Abstract

The invention discloses a laser amplifying device and a laser capable of realizing high-power structured light field laser output. The laser includes a direct liquid-cooled array distributed gain module, a structured light seed light source, a 4f beam amplification system and a pumping system. Aiming at the drawbacks of poor beam quality caused by liquid flow in direct liquid-cooled array lasers, the present invention innovatively proposes injecting a highly anti-interference structured light field as a seed source, amplified by a large-diameter circular liquid-cooled laser gain module, Obtain structured light field laser output with high power and high beam quality. The amplifier and laser of the present invention can not only improve the beam quality of direct liquid-cooled laser devices, but also can obtain high-power structured light-field lasers that play an important role in atmospheric transmission, precision measurement, etc., and are a new type of high-power laser device.

Description

technical field [0001] The invention relates to the technical field of high-energy lasers, in particular to a laser amplifying device and a laser capable of realizing high-power structured light field laser output. Background technique [0002] Due to its special phase and polarization state distribution characteristics, the spatially structured light field has broad research prospects in the fields of precision measurement, super-resolution imaging, large-capacity optical communication, and long-distance anti-interference transmission of laser light. It has become a research field in the field of optics. hotspot. Common methods for generating spatially structured light fields include the use of spatial light modulators, helical phase plates, Q plates, silicon-based photonic devices, and micro-nano metal structures. These methods can realize various types of structured light fields, such as those with helical phase distribution The vortex light field, the Bessel light field...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/04H01S3/042H01S3/094H01S3/10
CPCH01S3/0407H01S3/042H01S3/094061H01S3/10007
Inventor 易家玉胡浩阮旭涂波曹海霞高清松唐淳
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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