| Title |
High average power picosecond pump source for optical parametric chirped pulse amplification / |
| Translation of Title |
Didelės vidutinės galios pikosekundinis kaupinimo šaltinis faziškai moduliuotų impulsų parametriniam stiprinimui. |
| Authors |
Michailovas, Kirilas |
| Full Text |
|
| Pages |
39 |
| Keywords [eng] |
Nd:YAG ; OPCPA ; picosecond pulses amplification ; chirped pulse amplification ; laser amplifier |
| Abstract [eng] |
Thesis describes experiments aimed at creating an effective pump source for Optical Parametric Chirped Pulse Amplification systems. The thesis is divided into 5 chapters. Every chapter is concluded by its main results and conclusions. The thesis describes experiments conducted with the aim of creating a laser amplifier well suited to serve as a source for an optical parametric chirped pulse amplifier system. Literature overview is presented in the first chapter. Experiments aimed at choosing the optimum layout of the amplifier system, which would allow to compensate parasitic thermal effects caused by high average pump power, are described in the second chapter. A novel homogeneous spatial distribution formation method using properties of nanogratings inscribed in fused silica by femtosecond pulses is presented in chapter three. A laser amplifier system producing ~50 ps pulses is described in chapter four. Additionally experiments aiming to improve the beam quality, by using spatial filtering and adaptive optics, of a high average power side-pumped amplifier system are presented. A system created with the goal of achieving output pulse durations of ~20 ps is described in the fifth chapter. To avoid non-linear self-action of the laser radiation chirped pulse amplification technology was used. |
| Dissertation Institution |
Vilniaus universitetas. |
| Type |
Summaries of doctoral thesis |
| Language |
English |
| Publication date |
2018 |
