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The seed laser system of the FERMI free-electron laser: design, performance and near future upgrades.
- Source :
-
High Power Laser Science & Engineering . 2021, Vol. 9, p1-13. 13p. - Publication Year :
- 2021
-
Abstract
- An important trend in extreme ultraviolet and soft X-ray free-electron laser (FEL) development in recent years has been the use of seeding by an external laser, aimed to improve the coherence and stability of the generated pulses. The high-gain harmonic generation seeding technique was first implemented at FERMI and provided FEL radiation with high coherence as well as intensity and wavelength stability comparable to table-top ultrafast lasers. At FERMI, the seed laser has another very important function: it is the source of external laser pulses used in pump–probe experiments allowing one to achieve a record-low timing jitter. This paper describes the design, performance and operational modes of the FERMI seed laser in both single- and double-cascade schemes. In addition, the planned upgrade of the system to meet the challenges of the upgrade to echo-enabled harmonic generation mode is presented. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20954719
- Volume :
- 9
- Database :
- Academic Search Index
- Journal :
- High Power Laser Science & Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 158820111
- Full Text :
- https://doi.org/10.1017/hpl.2021.49