Open AccessDesigns of Q-switching Laser Power Supply with High Voltage Narrow Pulse
Author(s) -
Ping Zhou,
Xiao Ma,
Huaibo Shen,
Xiaoyu Yang,
Chenxiao Zhao
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1748/5/052012
Subject(s) - signal edge , pulse width modulation , transistor , signal (programming language) , pulse (music) , electrical engineering , laser , q switching , power (physics) , transmission (telecommunications) , voltage , high voltage , pulsed power , materials science , optics , computer science , physics , engineering , analog signal , quantum mechanics , programming language
Based on the pulse generation principle of Q-switching and cavity-dumping technologies, this paper designs a power supply with high voltage and narrow pulse for switching avalanche transistor with rising edge of ns level. In the power supply, an avalanche transistor and VOMS transistor are matched to design a driving circuit, which outputs 4.6ns narrow pulse signal. The circuit replaces the traditional cable transmission signal drive mode, reduces the whole signal transmission distance, and improves the signal transmission stability. It makes the two ends of the laser Q-switched crystal KD*P be pushed off instantaneously, which shortened the output laser pulse width from 18ns to 5.6ns. The power supply with high voltage and narrow pulse can be well used in many laser fields including communication, medical treatment, ocean exploration, etc.