Heat capacity type neodymium glass bar-shaped laser

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...

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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 system make the mechanical structure of the laser huge and complex; for large-size glass sheets to move back and forth quickly, the drive system is also difficult. There is a problem

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