A laser amplifier

Abstract

A laser amplifier comprise a laser amplifier main body, a glass window and a sealing cap; The main body of the laser amplifier is provided with a through working medium flow channel, and the working medium flow channel is filled with a flowing working medium. A cooling cavity is symmetrically arranged on both sides of the working medium flow channel, and a gap is arranged between each cooling cavity and the working medium flow channel; One end of the glass window is sealed and placed in the gap, and the other end of the glass window is sealed and compressed by a sealing cover. The sealing gland is installed on the laser amplifier main body; The symmetrical cooling chambers are conducted through the through holes; The laser amplifier main body is provided with a coolant inlet and a coolantoutlet, the coolant inlet is communicated with one cooling chamber, and the coolant outlet is communicated with the other cooling chamber. As that cool liquid is injected into the glass window to coolthe glass window, the heat exchange rate is greatly improve, the cooling effect is improved, the glass window placed in the cooling cham is arranged in a ring shape, the structure is simple, and theglass window is easy to process.

Description

technical field [0001] The invention relates to the technical field of laser amplifiers, in particular to a laser amplifier. Background technique [0002] Since the world's first ruby ​​laser came out in 1960, laser technology has developed rapidly over the past 50 years. It has been combined with multiple disciplines and widely used in laser spectroscopy, isotope purification, laser biology, laser medicine and the spectrum of the atmospheric environment. It is also widely used in military and national defense fields. [0003] Laser amplifiers are one of the core components of laser and dye laser amplification systems. In the laser amplification system, the signal laser source and the pump light pass through the glass window on one side of the laser amplifier, the working medium, and the glass window on the other side in the same direction at the same time. During this process, the power of the pump light is very high. The power of the signal laser source is low, and the p...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the usual method in the industry is to increase the flow rate of the working medium and increase the heat transfer rate, but this method will increase the degree of turbulence of the working medium, reduce the flow uniformity, thicken the flow boundary layer, and cause cavitation in the flow channel A series of problems such as air bubbles reduce the transmittance and the quality of light transmission

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