Device and method for detecting residual reflection of neodymium glass wrapping

Abstract

The invention provides a device and method for detecting the residual reflection of a neodymium glass wrapping. The device comprises a first laser; a light beam shaping lens group, a beam splitter and a sample are arranged in sequence along the laser output direction of the laser; a laser intensity detector is arranged in the reflected light direction of the beam splitter; a residual reflection light detector is arranged in the wrapping residual reflected light direction of the sample; and the output end of the laser intensity detector and the residual reflected light detector are connected with the input end of a data processing system. The device and the method have the following characteristics of simple structure, convenience in use and high measuring precision.

Description

technical field [0001] The invention relates to the detection technology of neodymium glass, in particular to a detection device and detection method for residual reflection of the wrapping of neodymium glass. Background technique [0002] Neodymium glass is widely used as a laser material. It has a large absorption spectrum range, a large absorption coefficient, a high fluorescence lifetime, and a large stimulated emission cross section. It is a four-level system with good spectral properties and is very suitable as a laser material. Neodymium glass has a good and mature melting process, and can manufacture products of various specifications and sizes, especially super-large-size neodymium glass is currently the most mature and reliable amplification medium for high-power laser systems, and is widely used in various high-power laser devices in the world. For example, the National Ignition Device in the United States, and the Shenguang Project in my country. When neodymium g...

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Problems solved by technology

At present, there is no patent for evaluating the matching degree of refractive index of neodymium glass wrapping. According to Fresnel's law, the present invention proposes to characterize the neodymium glass wrapping by measuring the reflection of the interface between the neodymium glass and the glued layer and the comprehensive result of the interface reflection between the wrapping glass and the glued layer. Refractive index matching, the sum of the interface reflection between neodymium glass and glued layer and the interface reflection between edged glass and glued layer is called the residual reflection of neodymium glass edged

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