Double-Z operation type solid laser batten amplifying device

A solid-state laser, slab amplification technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of low power density, difficult design, large diameter of incident laser beam, etc., achieve high amplification efficiency, improve filling factor, the effect of good beam quality

Active Publication Date: 2013-08-21
同方中科超光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the purpose of the present invention is to overcome the shortcomings of Z-shaped slab amplifiers, such as large incident laser beam aperture, low power density, difficulty in multi-pass amplification design, and radial thermal lens effect in some end-pump multi-pass straight-through slab amplifiers, and provide a The solid-state laser slab amplifying device that operates in a Z-shape in both the Z direction and the Y direction can effectively compensate the temperature gradient in the Z direction through the Z-shape transmission between the two large surfaces of the slab along the Z direction. The Z-shaped back-and-forth transmission along the Y direction allows the incident laser to pass through the laser medium multiple times, thereby achieving laser amplification with high efficiency, high power, and high beam quality

Method used

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  • Double-Z operation type solid laser batten amplifying device
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  • Double-Z operation type solid laser batten amplifying device

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Experimental program
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Embodiment 1

[0045] The specific structure of this embodiment refers to Figure 3-1 with Figure 3-2 :

[0046] Figure 3-1 It is the top view of the solid-state laser slab magnifying device of the double Z type operation of the present embodiment; Figure 3-2 It is the front view of the solid-state laser slab magnifying device with double Z-type operation in this embodiment; as can be seen from the figure, the solid-state laser slab magnifying device with double Z-type operation in this embodiment includes:

[0047] Slab-shaped laser medium 1 uses Nd:YAG crystal, the doping concentration of Nd ions is 0.6%, and its size is 65mm×10mm×2mm. parallel to and at Brewster's angle with the great plane;

[0048] The semiconductor pump source 2 includes 2 pumping arrays, each array is composed of 24 semiconductor laser (LD) arrays, arranged in 8 rows and 3 columns, each LD output power is 20W, and the wavelength is 808nm; the semiconductor pump source 2 The emitted pump laser 6 is shaped by th...

Embodiment 2

[0051] The specific structure of this embodiment refers to Pic 4-1 with Figure 4-2 :

[0052] Pic 4-1 It is the top view of the solid-state laser slab magnifying device of the double Z type operation of the present embodiment; Figure 4-2 It is the front view of the solid-state laser slab magnifying device of the double Z-type operation of the present embodiment; as can be seen from the figure, the solid-state laser slab magnifying device of the double-Z-type operation of the present embodiment comprises: the present embodiment and embodiment 1 The difference is that the pumping method is changed from a double-sided pump to a double-ended pump. After the change, both ends of the slab laser medium 1 need to be coated with an 808nm anti-reflection coating, and both cavity mirrors (4 and 5) need to be coated with 808nm anti-reflection coating to facilitate the absorption of pump light. The semiconductor pump source 2 includes 2 pump arrays, each array is composed of 8 LDs,...

Embodiment 3

[0054] The specific structure of this embodiment refers to Figure 5-1 with Figure 5-2 :

[0055] Figure 5-1 It is the top view of the solid-state laser slab magnifying device of the double Z type operation of the present embodiment; Figure 5-2 It is the front view of the solid-state laser slab magnifying device of the double Z-type operation of the present embodiment; as can be seen from the figure, the solid-state laser slab magnifying device of the double-Z-type operation of the present embodiment comprises: the present embodiment and embodiment 1 The difference is that the pumping method is changed from double-sided pumping to large-face pumping. After the modification, the semiconductor pump source 2 is a pump array composed of 60 LDs, each LD has an output power of 20W and a wavelength of 808nm. The pumping light emitted by the semiconductor pump source 2 is shaped by the beam shaping system 3 so that the beam with an aperture of 60×9 mm enters the slab laser medi...

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Abstract

The invention relates to a double-Z operation type solid laser batten amplifying device. The double-Z operation type solid laser batten amplifying device comprises batten laser media, a semiconductor pump source, a beam shaping system, endoscopes and a cooling device, wherein pumping lasers generated by the semiconductor pump source serve as a seed laser system through the beam shaping, enter from one end face of a batten, are transmitted forward in a total internal reflection mode between two large surfaces of the batten and output from the other end face, are reflected after reaching the endoscope on the right side, enter from the end face of the batten, are transmitted forward in a total internal reflection mode between the two large surfaces of the batten, are reflected after reaching the endoscope on the left side, enter the batten again, and finally are output from the endoscope on the right side after being reflected repeatedly. According to the double-Z operation type solid laser batten amplifying device, bidirectional Z type multipass transmission of the seed lasers along the Y axis and the Z axis in the batten is achieved, amplification with high power and high efficiency is achieved; sodium beacon laser amplification is high in power, high in beam quality, and high in efficiency, and the double-Z operation type solid laser batten amplifying device can be used for generating sodium beacon lasers which are high in power, high in beam quality, and small in line width.

Description

Technical field [0001] The present invention involves a solid laser amplifier device, which specializes in a solid laser strip enlarged device that can be used for the double Z -type operation of sodium laser base frequency light power amplification. Background technique [0002] In the field of astronomical observation, sodium laser laser can stimulate sodium atoms in the atmosphere to produce sodium laser guide stars. As a reference signal of adaptive optical system, it can be lit.Imaging resolution. [0003] Because the laser of sodium letter laser needs to resonate with the sodium atomic D2 spectrum in the ionization layer, it is required to have a high average power, high beam quality, narrow line width, and wavelength.ND: yag1064nm and 1319nm laser and frequency are used.Among them, for the 1064nm and 1319nm base frequency light, if the oscillating level is directly generated, it is difficult to achieve high average power, high -gloss beam quality, and narrow line wide lase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/102H01S3/06
Inventor 彭钦军薄勇许祖彦王鹏远谢仕永
Owner 同方中科超光科技有限公司
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