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Laser gain rod as well as laser oscillator and laser amplifier comprising the same

A technology of laser gain and pump light, applied in the field of lasers, can solve the problems of high price of photonic crystal fiber, low yield, far away from market application, etc., to avoid thermal effect, fast heat dissipation, and improve skin effect Effect

Active Publication Date: 2015-04-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the complex fiber structure and low yield, the price of photonic crystal fiber remains high, and even accounts for more than 50% of the total laser cost. At present, it can only be used for scientific research, which is far from large-scale market application. Far

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  • Laser gain rod as well as laser oscillator and laser amplifier comprising the same
  • Laser gain rod as well as laser oscillator and laser amplifier comprising the same
  • Laser gain rod as well as laser oscillator and laser amplifier comprising the same

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Embodiment Construction

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0049] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention discloses a laser gain rod used for pump homogenization, and belongs to the technical field of the laser. The cross section of the laser gain rod is non-rotationally symmetric, and side surface polishing and end surface polishing are carried out; after pump light is injected from the side surface or the end surface of the laser gain rod, total reflection is generated on the side surface of the laser gain rod; therefore, the pump light is always constrained in the laser gain rod to be transmitted; meanwhile, because the non-rotational symmetry of the side surface, the pump light unlikely forms hollow spiral light, and therefore the pump light is evener in space distribution; in addition, the laser gain rod used for the pump homogenization has a low doping density and a big cooling surface area; therefore the laser gain rod has the advantages of low heat sink density and high cooling speed; and harm caused by various types of thermal effects can be effectively avoided.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a laser gain rod for pump homogenization, a laser oscillator and a laser amplifier with the same. Background technique [0002] All-solid-state lasers have the advantages of small size, light weight, high efficiency, stable performance, good reliability, long life, easy operation, flexible operation, easy intelligence, and no pollution. They are widely used in industrial processing, information transmission, remote sensing and other fields. Played an important role, the market demand is huge. [0003] Classified according to the shape of the working material, all-solid-state lasers are often divided into the following categories: rod lasers, slab lasers, disk lasers, and fiber lasers. They have their own advantages, and have attracted the attention of many scientific researchers in recent years, and have achieved rapid development. However, at high pump power, these kinds of working subst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/06
Inventor 巩马理陈海龙黄磊柳强闫平张海涛
Owner TSINGHUA UNIV
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