| Title |
Didelės išdavinės galios hibridinio šviesolaidinio-kietakūnio lazerio tyrimai / |
| Translation of Title |
High power output hybrid fiber-solid state laser investigation. |
| Authors |
Sasnauskas, Kasparas |
| Full Text |
|
| Pages |
47 |
| Abstract [eng] |
We compare performance of double-pass chirped pulse amplifier based on a single crystal fiber versus the larger aperture Yb:YAG rods. High brightness fiber coupled laser diodes with overall power of up to 140 W at 940 nm wavelength were used as a pump source. Emitted by fiber laser seed pulses were amplified up to ~ 30 W in a single crystal fiber and up to ~ 50 W in the larger aperture rods both featuring beam quality of M2 ~ 1.1. Amplified pulses were compressed by diffraction grating down to ~ 600 fs with 80 % efficiency. The main goal of present investigation was to identify the best end-pumped configuration for the first cascade of CPA. Compressed pulses after the second cascade of CPA will be used for the pumping of 1 TW class optical parametric chirped pulse amplifier (OPCPA). |
| Dissertation Institution |
Vilniaus universitetas. |
| Type |
Master thesis |
| Language |
Lithuanian |
| Publication date |
2017 |
