Development of laser method for studying temperature distribution in active elements of high average power laser amplifiers

Konovalova, A. O.; Kuptsov, G. V.; Petrov, V. V.; Петров, В. А.; Лаптев, А. В.

doi:10.1109/iclo54117.2022.9840093

Cited by 1 publication

(1 citation statement)

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“…And the increase of L1 has a more obvious effect on the change of forward drive current pulse width and rise time. Analysis shows that L1 and the laser diode are in series in the circuit, and the inductor, as an energy storage element [13], will have a hindering effect on the current flowing through the laser diode, thus affecting the pulse width, peak value and rise time of the forward drive current.…”

Section: Simulink Modelling Of Rlc Loop Equations and Rate Equationsmentioning

confidence: 99%

Research on Temperature Characteristics of Pulse Laser Fuze Drive Circuit

Liu,

Wang,

et al. 2024

IEEE Access

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The change in laser output power caused by the temperature change of the pulse laser fuze drive circuit directly affects the detection distance and accuracy. In order to achieve accurate distance determination of the pulse laser fuze, it is necessary to study the influence of temperature changes on the output characteristics of the pulse laser fuze drive circuit. In this paper, we study the changes in peak power caused by changes in component parameters such as resistors, capacitors, and laser diodes in the pulse laser drive circuit, which is caused by typical temperature gradients in the transient state. Based on Simulink software, a simulation model of pulsed laser drive circuit is built, and based on the theory of RLC loop equation and laser rate equation, the temperature-dependent gain coefficients are introduced to obtain the laser output characteristics corresponding to typical temperature. As a main result, we found that the laser output power decreases by about 10% during the temperature change from -50°C to 50°C. A hardware test platform is built to verify that the error is no more than 1%. The above study provides a reliable method for the design of the temperature model of the pulsed laser fuze drive circuit.INDEX TERMS Laser fuze, pulse laser drive circuit, temperature characteristics, circuit-level modeling.

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Section: Simulink Modelling Of Rlc Loop Equations and Rate Equationsmentioning

confidence: 99%