Heat capacity type neodymium glass bar-shaped laser

A neodymium glass and laser technology, which is applied in the field of lasers, can solve the problems of large and complex mechanical structures of lasers, and fail to reach the kilowatt level, and achieve the effects of light weight, simple and compact structure, and small volume

Inactive Publication Date: 2008-06-18
NINGBO UNIV
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Problems solved by technology

However, the output power of this laser is still limited by the load capacity of the glass sheet and cannot reach the kilowatt level; the laser medium movement and cooling syste

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  • Heat capacity type neodymium glass bar-shaped laser
  • Heat capacity type neodymium glass bar-shaped laser

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] As shown in Fig. 1, Fig. 2 and Fig. 3, a heat-capacitive neodymium glass rod laser includes a resonant cavity 1, a concentrator 2 and a rod-shaped neodymium glass laser medium 6, and the optical axis O'O' of the resonant cavity 1 and The optical axis OO of the concentrator 2 and the axis of the rod-shaped neodymium glass laser medium 6 coincide in three lines. The resonant cavity 1 includes a total reflection mirror 7 and a half reflection mirror 8 . The concentrator 2 is in the shape of a quincunx and consists of four semi-elliptical concentrating cavities 3. A xenon lamp 5 parallel to the direction of the laser beam is arranged in the concentrating cavity 3, and a cooling tube 4 is placed outside the xenon lamp 5, and the cooling tube 4 is cerium-doped The quartz water cooling pipe is provided with flowing cooling water in the coolin...

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Abstract

The invention discloses a neophane glass rod-shaped laser in heat capacity type, comprising a resonant cavity, an optical collector and rod-shaped neophane glass laser medium. The resonant cavity comprises a total reflective mirror and a half reflective mirror; the optical collector in club-shape consists of four semi-ellipse optical collecting cavities where xenon lamp is arranged to be parallel to the direction of the laser beam; a cooling pipe is sleeved outside the xenon lamp; the cooling pipe is internally provided with flowing cooling water; the pumping power density of the xenon lamp is less than or equal to 95J/cm<3>; the discharging pulse width of the xenon lamp is 1-2ms; the gain volume of the rod-shaped neophane glass laser medium is more than or equal to 1481cm<3> and the diameter thereof is more than or equal to 3.6cm; one end surface of the rod-shaped neophane glass laser medium is a bevel which has the inclination of 2 plus or minus 0.01 DEG. The invention has the advantages of ensuring laser output with high beam quality and effectively implementing high efficiency and high average power output by adopting the structure; and as the laser medium adopts the rod-shaped glass, the whole laser has small volume and light weight and no cooling is needed in the operation process of the laser.

Description

technical field [0001] The invention relates to a laser, in particular to a heat capacity neodymium glass rod laser. Background technique [0002] The application range of laser processing is very wide. At present, it has been widely used in machinery, electronics, automobile, aerospace, steel, shipbuilding, military industry and other industries, and it occupies an increasing proportion of the gross national product. Lasers commonly used in industrial applications include solid-state lasers, etc., and more lasers are lamp-pumped, but lamp-pumped lasers used in industrial applications need to ensure high beam quality and high-power laser output. [0003] Solid-state lasers are mostly heat-capacitive glass lasers. For traditional heat-capacitive lamp-pumped glass lasers, due to the extremely poor thermal conductivity of the laser medium (glass), the heat generated by the pumping light is deposited in the laser medium to generate thermal stress. Under the action of repeated p...

Claims

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Application Information

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IPC IPC(8): H01S3/091H01S3/06H01S3/08H01S3/042
Inventor 聂秋华戴世勋徐铁峰沈祥王训四黄国松
Owner NINGBO UNIV
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