A pressure automatic balance laser head device
A technology of automatic balance and laser head, which is applied in the direction of lasers, laser parts, phonon exciters, etc., can solve the problems of high cost, difficult to realize, complex structure of laser head, etc., and achieve the effect of eliminating deformation and increasing the pressure range
Inactive Publication Date: 2017-06-09
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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Problems solved by technology
In order to solve the problem of hydraulic pressure difference between the front and back of the medium, some researchers use double-ended cooling, but the double-ended cooling needs to select a special coolant that does not absorb the laser wavelength, and special instruments are required to minimize the air bubbles caused by the circulating flow of the coolant , turbulence, etc., but cannot be completely eliminated, and the structure of the laser head is complicated, the cost is high, and it is not easy to realize
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Embodiment 1
[0024] Such as figure 1 As shown, a pressure auto-balancing laser head device includes a liquid sealing window 1, a cooling liquid layer 2, a gain medium 3, a balanced air pressure layer 4, an air sealing window 5, a three-way liquid inlet channel 6, an air storage tank 7, a drying The box 8, the liquid outlet channel 9, the air sealing window 5, the balanced air pressure layer 4, the gain medium 3, and the cooling liquid layer 2 are all lath-shaped with the same large surface area, and the large surface is long × wide surface, so The air sealing window 5, the balanced air pressure layer 4, the gain medium 3, the cooling liquid layer 2, and the liquid sealing window 1 are arranged in parallel in sequence, and their geometric centers are coaxial, and the air sealing window 5 and the gain medium 3 are sealed to form a balanced air pressure layer 4. The thickness of the air pressure layer 4 can be adjusted as required. When the hydraulic pressure is small, the thickness of the b...
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The invention discloses a laser head device with automatic pressure balance, belonging to the field of laser amplifiers, comprising a cooling liquid layer, a gain medium, a liquid inlet channel, a balanced air pressure layer, an air sealing window, an air storage tank and a drying box, the liquid inlet channel It is a three-way liquid inlet channel. The air sealing window, balanced air pressure layer, gain medium, and cooling liquid layer are all lath-shaped with large areas and equal in size, and are arranged in parallel in sequence. The two ends of the three-way liquid inlet channel The cooling liquid layer and the balanced air pressure layer are respectively connected. The air storage tank and the drying box are connected in series between the three-way liquid inlet channel and the balanced air pressure layer. The air pressure of the balanced air pressure layer is equal to the hydraulic pressure of the cooling liquid layer. Through this device It can balance the pressure on both sides of the gain medium, eliminate the deformation of the gain medium caused by the single-ended cooling hydraulic pressure, and eliminate the wavefront distortion of the reflected laser caused by the deformation of the medium. It has the advantages of simple structure, low cost, and easy implementation. .
Description
technical field [0001] The invention relates to the field of laser amplifiers, in particular to a pressure automatic balancing laser head device. Background technique [0002] The reflective active mirror is a typical large-aperture laser amplifier amplification structure. This structure has many advantages such as multiplying the laser amplification times, facilitating the cooling of the gain medium, and facilitating large-area LD array pumping. However, the cooling liquid almost absorbs the laser. Even if the cooling liquid does not absorb, the bubbles and turbulence generated by its flow also make it difficult for the laser to pass through the cooling liquid layer. Therefore, the reflective active mirror structure provides single-sided cooling for the gain medium. . However, since the longitudinal thickness of the gain medium in the reflection-activated mirror structure is generally much smaller than the lateral dimension, the gain medium will be deformed due to the pres...
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IPC IPC(8): H01S3/042
Inventor 王振国郑建刚蒋新颖严雄伟吴登生田晓琳张君张雄军李明中朱启华粟敬钦郑奎兴胡东霞张崑
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS