Towards femtosecond-level intrinsic laser synchronization at fourth generation light sources

In this Letter, the proof of principle for a scheme providing intrinsic femtosecond-level synchronization between an external laser system and fourth generation light sources is presented. The scheme is applicable at any accelerator-based light source that is based on the generation of coherent radi...

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Bibliographic Details
Published in:Optics letters 2018-05, Vol.43 (9), p.2213-2216
Main Authors: Chen, M, Kovalev, S, Awari, N, Wang, Z, Germanskiy, S, Green, B, Deinert, J-C, Gensch, M
Format: Article
Language:English
Subjects:
Coherent radiation
Lasers
Light sources
Optical communication
Slicing
Stability
Synchronism
Time synchronization
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Summary:In this Letter, the proof of principle for a scheme providing intrinsic femtosecond-level synchronization between an external laser system and fourth generation light sources is presented. The scheme is applicable at any accelerator-based light source that is based on the generation of coherent radiation from ultrashort electron bunches such as superradiant terahertz (THz) facilities or X-FELs. It makes use of a superradiant THz pulse generated by the accelerator as an intrinsically synchronized gate signal for electro-optical slicing. We demonstrate that the scheme enables a reduction of the timing instability by more than 2 orders of magnitude. This demonstration experiment thereby proves that intrinsically synchronized time-resolved experiments utilizing laser and accelerator-based radiation pulses on few tens of femtosecond (fs) to few fs timescales are feasible.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.43.002213