Temperature control technology of laser during continuous measurement

Abstract

The invention relates to a temperature control technology of a laser during continuous measurement. The method comprises the following specific steps that, the temperature control part of the laser iscompleted by a high-performance temperature controller HTC1500, a PI control loop is designed into a bipolar current source, a resistance temperature sensor and a built-in sensor bias current are used, a diode is added, a single-pole output current is used for operating a resistance heater, an onboard reference voltage simplified potentiometer controls a temperature setting point, an external fixed-point voltage can be selected for remote operation, and two monitors are connected with the temperature fixed-point voltage and an actual sensor voltage. According to the temperature control technology of the laser during continuous measurement, the temperature controller is additionally arranged on the laser, codes are written on software to control on-off of the laser, temperature control over the laser can be achieved, and the situation that the laser is damaged and financial losses are caused due to the fact that an optical frequency domain reflectometer generates a large amount of heatduring continuous measurement work is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of high-end equipment manufacturing, in particular to a temperature control technology of a laser during continuous measurement. Background technique [0002] High-end equipment manufacturing industry, also known as advanced equipment manufacturing industry, refers to the industry that produces advanced industrial facilities and equipment with high technology and high added value. Optical frequency domain reflectometer is a high-end equipment with a wide range of applications. laser device. In 1954, the first microwave quantum amplifier was made, and a highly coherent microwave beam was obtained. Except for the free electron laser, the basic working principles of all kinds of lasers are the same. The essential conditions for laser generation are particle number inversion and gain greater than loss, so the essential components in the device include excitation (or pumping) source and working medium with metas...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a temperature control technology of the laser during continuous measurement, to solve the problem that the existing optical frequency domain reflectometer proposed in the above background technology will generate a large amount of heat during continuous measurement, and the temperature of the laser is too high , it will cause damage to the laser

Images