Double nanosecond pulses generation in ytterbium fiber laser

被引：20

作者：

Veiko, V. P. ^{[1
]}

Lednev, V. N. ^{[2
,3
]}

Pershin, S. M. ^{[2
]}

Samokhvalov, A. A. ^{[1
]}

Yakovlev, E. B. ^{[1
]}

Zhitenev, I. Yu. ^{[1
]}

Kliushin, A. N. ^{[1
]}

机构：

[1] St Petersburg State Univ Informat Technol Mech &, Kronverksky Pr 49, St Petersburg, Russia

[2] Russian Acad Sci, Prokhorov Gen Phys Inst, Vavilov Str 38, Moscow, Russia

[3] Natl Univ Sci & Technol MISiS, Leninskyave 4, Moscow, Russia

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2016年 / 87卷 / 06期

关键词：

INDUCED BREAKDOWN SPECTROSCOPY; PLASMA;

D O I：

10.1063/1.4953886

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Double pulse generation mode for nanosecond ytterbium fiber laser was developed. Two sequential 60-200 ns laser pulses with variable delay between them were generated by acousto-optic modulator opening with continuous diode pumping. A custom radio frequency generator was developed to produce two sequential "opening" radio pulses with a delay of 0.2-1 mu s. It was demonstrated that double pulse generation did not decrease the average laser power while providing the control over the laser pulse power profile. Surprisingly, a greater peak power in the double pulse mode was observed for the second laser pulse. Laser crater studies and plasma emission measurements revealed an improved efficiency of laser ablation in the double pulse mode. Published by AIP Publishing.

引用

页数：5

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