Device and method for detecting ultra-low residual reflectivity at boundary surface of large-size sheet laser neodymium glass package

A flake laser and detection device technology, applied in the measurement of scattering characteristics, etc., can solve problems such as large test errors, and achieve the effects of improving test accuracy, improving measurement reliability, and high sensitivity

Active Publication Date: 2022-06-28
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI +1
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Problems solved by technology

However, material absorption, scattering and surface reflection are calculated using theoretical values. When the residual reflectivity of the interface is low, the test error is very large

Method used

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  • Device and method for detecting ultra-low residual reflectivity at boundary surface of large-size sheet laser neodymium glass package
  • Device and method for detecting ultra-low residual reflectivity at boundary surface of large-size sheet laser neodymium glass package
  • Device and method for detecting ultra-low residual reflectivity at boundary surface of large-size sheet laser neodymium glass package

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Embodiment Construction

[0050] The present invention will be further described below with reference to the accompanying drawings and implementation, but the protection scope of the present invention should not be limited by this.

[0051] see first figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6 , figure 1 It is a schematic diagram of the ultra-low residual reflection detection device for the large-size flake laser neodymium glass cladding interface of the present invention, figure 2 It is a schematic diagram of the structure of the integrating sphere used in the present invention. image 3 It is a schematic diagram of the optical path of the structure of the tested sample and the light at the cladding interface of the present invention. Figure 4 is a schematic diagram of the overall structure of the tested sample in the present invention, Figure 5 is the reflection schematic diagram and optical path of the standard sample used for system calibration in the present inv...

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Abstract

A detection device and method for the ultra-low residual reflectivity of the boundary surface of a large-size sheet laser neodymium glass package. The device and method of the present invention realize the spatial resolution of large-size sheet laser neodymium glass in the order of mm and 10 ‑4 The measurement of the residual reflectivity of the encapsulation interface can be used to evaluate the quality of the encapsulation bonding interface, which is beneficial to the monitoring of the production process of large-scale sheet laser neodymium glass and the improvement and optimization of the encapsulation process.

Description

technical field [0001] The invention relates to a neodymium-doped phosphate laser glass, in particular to a device and a method for detecting the ultra-low residual reflectivity of the cladding interface of the large-size flake laser neodymium glass. Background technique [0002] As a laser gain and transmission medium, laser neodymium glass is widely used because of its low laser oscillation threshold, large stimulated emission cross section, low probability of non-radiative transition, and small nonlinear refractive index coefficient. When the laser neodymium glass absorbs the excitation light of the pump source, the particles of the lower energy level transition to the upper energy level, and then transition to the lower energy level with radiation or no radiation, which can amplify the input light, thereby amplifying the input light energy. Laser neodymium glass is the main amplifying component of the Inertial Confinement Fusion (ICF) high-power laser drive device, and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/55
CPCG01N21/55
Inventor 胡俊江陈坚温磊吴周令孟涛黄明胡丽丽削刚陈伟
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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