| Autor: |
Zeyen, Manuel, Affolter, Lukas, Ahmed, Marwan Abdou, Graf, Thomas, Kara, Oguzhan, Kirch, Klaus, Marszalek, Miroslaw, Nez, François, Ouf, Ahmed, Pohl, Randolf, Rajamohanan, Siddharth, Yzombard, Pauline, Schuhmann, Karsten, Antognini, Aldo |
| Rok vydání: |
2023 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
We report on an Yb:YAG thin-disk multipass amplifier delivering 50 ns long pulses at a central wavelength of 1030 nm with an energy of 330 mJ at a repetition rate of 100 Hz. The beam quality factor at the maximum energy was measured to be $\text{M}^2 = 1.17$. The small signal gain is 20, and the gain at 330 mJ was measured to be 6.9. The 20-pass amplifier is designed as a concatenation of stable resonator segments in which the beam is alternately Fourier transformed and relay-imaged back to the disk by a 4f-imaging optical scheme stage. The Fourier transform propagation makes the output beam robust against spherical phase front distortions, while the 4f-stage is used to compensate the thermal lens of the thin-disk and to reduce the footprint of the amplifier. |
| Databáze: |
arXiv |
| Externí odkaz: |
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