Measurement device, with step-shaped cone, absorbing all energy of high-energy laser

Abstract

The invention provides a measurement device, with a step-shaped cone, absorbing all energy of a high-energy laser. Light enters an absorbing cavity from the entrance of an energy meter, arrives in a reflection body in an incident mode and can be absorbed by the absorbing cavity after being reflected by the reflection body, and temperature rise of each region of an absorbing body is measured by a temperature measurement component and is combined with quality and specific heat of combustion to work out the energy increment of each region. Water channels are formed in the wall of the reflection body and the wall of the absorbing body respectively, and water is filled into the water channels to bring away most heat. Laser energy brought away by the water can be indirectly worked out through a water circulation component according to temperature changes and flow during the period from the time when the water enters the absorbing body and the reflection body to the time after the water departs from the absorbing body and the reflection body. The total energy of increment lasers can be worked out by a data collecting component according to energy measured by the temperature measurement component and energy measured by the water circulation component. Because the step-shaped emitting cone serves as the reflection body, the absorbing body is of a cylindrical structure, the effect caused by low laser induced damage thresholds, temperature measurement accuracy, heat loss and light energy escaping in the prior art is avoided, and the measurement device has the advantages of being high in efficiency ratio and testing efficiency and the like.

Description

technical field [0001] The invention belongs to the field of high-energy laser energy measurement, and in particular relates to a stepped cone high-energy laser total absorption energy measurement device, which is suitable for high-energy laser energy measurement. Background technique [0002] There are two main methods for high-energy laser energy measurement: the first is indirect measurement, which uses a spectroscope to split the sample, then uses a low- and mid-range power energy measurement device to measure the sampled laser energy, and finally according to the low- and mid-range power energy measurement device. The measurement results and the splitting ratio of the beam splitter are used to calculate the total laser energy; the second is the direct measurement method, that is, the energy measurement device is used to measure the total laser energy, which requires the measurement device to absorb almost all the laser energy. This type of device is usually called It is...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the influence caused by the low anti-laser damage threshold and temperature measurement accuracy, heat loss and light energy escape in the prior art, the present invention provides a stepped cone high-energy laser total absorption energy measurement device

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