Burst-Mode 355 nm UV Laser Based on a QCW LD-Side-Pumped Electro-Optical Q-Switched Nd: YAG Laser

In this paper, a high-repetition-rate, high-peak-power burst-mode nanosecond 355 nm UV laser was demonstrated. A quasi-continuous wave (QCW) laser diode (LD) side-pumped electro-optical (EO) Q-switched burst-mode Nd: YAG laser was performed as the fundamental laser source. Under the pumping duration...

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Bibliographic Details
Published in:Photonics 2024-11, Vol.11 (11), p.1071
Main Authors: Guo, Haowen, Jia, Chunyan, Ye, Shuai, Yao, Yongping, Ma, Tiejun, Zhang, Jiayu, Bai, Meng, Xia, Jinbao, Nie, Hongkun, Yao, Bo, He, Jingliang, Zhang, Baitao
Format: Article
Language:English
Subjects:
355 nm UV laser
burst-mode
Continuous radiation
Efficiency
Energy
Laser applications
Laser pumping
Lasers
Neodymium lasers
Pulse duration
Q switched lasers
QCW LD-side-pumped
Repetition
Semiconductor lasers
Thin films
Ultraviolet lasers
YAG lasers
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Summary:In this paper, a high-repetition-rate, high-peak-power burst-mode nanosecond 355 nm UV laser was demonstrated. A quasi-continuous wave (QCW) laser diode (LD) side-pumped electro-optical (EO) Q-switched burst-mode Nd: YAG laser was performed as the fundamental laser source. Under the pumping duration of 250 μs and a burst repetition rate of 100 Hz, the pulse energy of 20 kHz burst-mode UV laser reached 5.3 mJ with a single pulse energy of 1.325 mJ, pulse width of 68 ns, resulting in a peak power of 19.49 kW. The as-generated millijoule burst-mode UV laser has great potential for high-end processing of laser lift-off, annealing and slicing in display semiconductor fields.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics11111071