scholarly journals Innovative single-shot 2D pulse front tilt diagnostic

2021 ◽  
Vol 9 ◽  
Author(s):  
M. Galimberti ◽  
F. G. Bisesto ◽  
M. Galletti
Keyword(s):  
Laser System ◽  
Ultrashort Pulses ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Target Area ◽  
Single Shot ◽  
Angular Dispersion ◽  
Power Laser ◽  
Pulse Front ◽  
High Power Laser System

Abstract The presence of pulse front tilt (PFT), caused by angular dispersion (AD) in femtosecond laser pulses, could degrade the performance of the laser system and/or impact the experimental yields. We present a single-shot diagnostic capable of measuring the AD in the x–y plane by adopting an intensity mask. It can be applied to stretched pulses, making it ideal for diagnosing the AD along the amplification chain of a high-power laser system, and to ultrashort pulses exiting from an optical compressor. In this way, it can help in properly characterizing a laser pulse before it is delivered to the target area. In this Letter, we present experimental evidence of AD retrieval for different compression configurations, supported by theoretical analysis.

scholarly journals Research and development of new neodymium laser glasses

2017 ◽  
Vol 5 ◽  
Author(s):  
Dongbing He ◽  
Shuai Kang ◽  
Liyan Zhang ◽  
Lin Chen ◽  
Yajun Ding ◽  
...  
Keyword(s):  
Laser System ◽  
Phosphate Glasses ◽  
Neodymium Laser ◽  
Power Laser ◽  
Peak Emission Wavelength ◽  
High Power Laser System ◽  
Lower Thermal Expansion ◽  
Shock Resistance ◽  
Fine Mechanics ◽  
Peak Emission

This work presents a brief introduction on three kinds of newly developed $\text{Nd}^{3+}$ -doped laser glasses in Shanghai Institute of Optics and Fine Mechanics (SIOM), China. Two $\text{Nd}^{3+}$ -doped phosphate glasses with lower thermal expansion coefficient and thermal shock resistance 4 times higher than that of N31 glass are developed for laser processing. Nd:Silicate and Nd:Aluminate glasses with peak emission wavelength at 1061 and 1065 nm, effective emission bandwidth of 34 and 50 nm, respectively, are developed for Exawatt-class laser system application. Fluorophosphate glasses with low nonlinear refractive index ( $n_{2}=0.6{-}0.86$ ) and long fluorescence lifetime ( $430{-}510~\unicode[STIX]{x03BC}\text{s}$ ) are investigated for the purpose of decreasing B integral in high-power laser system. The properties of all these glasses are presented and compared with those of commercial neodymium laser glasses.

Research on Nonlinear Degeneration and Compensation of Beam Quality in High Power Laser System

2014 ◽  
Vol 34 (2) ◽  
pp. 0214005
Author(s):  
张鲁薇 Zhang Luwei ◽  
李晓彤 Li Xiaotong ◽  
岑兆丰 Cen Zhaofeng ◽  
阮望超 Ruan Wangchao ◽  
罗红妹 Luo Hongmei
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Laser System ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser System

Photoelectronic Trigger Module in High-Power Laser System

2011 ◽  
Vol 38 (5) ◽  
pp. 0517002
Author(s):  
张鹏 Zhang Peng ◽  
李学春 Li Xuechun ◽  
李国扬 Li Guoyang ◽  
张生佳 Zhang Shengjia
Keyword(s):  
High Power ◽  
Laser System ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser System

Characteristics of plasma in spatial filter pinhole of high power laser system

2010 ◽  
Vol 22 (12) ◽  
pp. 2921-2924
Author(s):  
张鑫 Zhang Xin ◽  
袁强 Yuan Qiang ◽  
赵军普 Ｚhao Junpu ◽  
胡东霞 Hu Dongxia ◽  
代万俊 Dai Wanjun ◽  
...  
Keyword(s):  
High Power ◽  
Laser System ◽  
Spatial Filter ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser System

Research on Beam Smoothing Technology for High-Power Laser System

2011 ◽  
Vol 48 (10) ◽  
pp. 101407
Author(s):  
周煜梁 Zhou Yuliang ◽  
隋展 Sui Zhan ◽  
刘兰琴 Liu Lanqin ◽  
粟敬钦 Su Jingqin ◽  
李平 Li Ping ◽  
...  
Keyword(s):  
High Power ◽  
Laser System ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser System

Research on the Digital Online Control Technologies in the High Power Laser System

2012 ◽  
Vol 49 (4) ◽  
pp. 041402
Author(s):  
张艳丽 Zhang Yanli ◽  
张军勇 Zhang Junyong ◽  
张亮君 Zhang Liangjun ◽  
陈宝算 Chen Baosuan ◽  
刘德安 Liu Dean ◽  
...  
Keyword(s):  
High Power ◽  
Laser System ◽  
Online Control ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser System ◽  
Control Technologies

Study of Small-Scale Self-Focusing in High-Power Laser System

2012 ◽  
Vol 49 (1) ◽  
pp. 010002
Author(s):  
陈宝算 Chen Baosuan ◽  
张军勇 Zhang Junyong ◽  
张艳丽 Zhang Yanli ◽  
刘德安 Liu Dean ◽  
朱健强 Zhu Jianqiang
Keyword(s):  
High Power ◽  
Laser System ◽  
Small Scale ◽  
High Power Laser ◽  
Power Laser ◽  
Self Focusing ◽  
High Power Laser System
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