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Development of Pulse Semicondutor Laser Power Supply

Author: LiuGuangWen
Tutor: JiangXiaoHua
School: Changchun University of Science and Technology
Course: Physical Electronics
Keywords: Quasi-continuous High-power semiconductor lasers Laser Power Supply SCM LCD Display Technology YAG -pumped solid-state lasers Constant current A semiconductor laser
CLC: TN248
Type: Master's thesis
Year: 2002
Downloads: 547
Quote: 3
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Abstract


Semiconductor laser -pumped solid-state lasers because of both the laser diode and the dual advantages of solid-state lasers , rapid development in recent years , and in the military , communications , processing and research and other fields has been widely applied . In this paper, semiconductor solid-state laser pumped solid-state laser YAG laser system power requirements , and the integrated use of the current in the smart meter , mechatronics products, automatic control system widely used microcontroller digital automatic control technology , LCD display technology, PC switch technology and regulation, constant current technology , developed a diode laser power . This in-depth analysis of the semiconductor laser power supply works, quasi-continuous mode of operation according to the special requirements , demonstration of the power of the main aspects of the feasibility of the program , designed the corresponding hardware circuit and software program ( to achieve a timing precision automation control , digital display unit without the power semiconductor laser pulse voltage , no voltage constant current power supply surge currents . ) wherein the master control unit from the CPU architecture with high control precision ; adopted as the power of the power FET device . Power machine in practical work and operation is stable and reliable , reached a high technical requirements . Power up the technical specifications : Output pulse current amplitude of 27A ~ 80A adjustable current stability ± 0.8%, ripple ± 0.1A; frequency 1 ~ 1000Hz adjustable during the week repetitive error ± 0.01%; pulse width 200uS; error ± 0.2uS; pulse rise time of less than pulse falling transition 6uS.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser
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