Paper
15 December 2022 A self-synchronization scheme of optical-optical pulses based on the nonlinear wavelength conversion in fibers in FEL facilities
Junchang Su, Xincai Diao, Qi Liu, Guoqing Chang, Wei Liu
Author Affiliations +
Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 124784G (2022) https://doi.org/10.1117/12.2654954
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China
Abstract
The paper reports a new method for optical-optical synchronization based on the nonlinear wavelength conversion in fibers. We established a numerical model for the pulse propagation in highly nonlinear fibers. A 1.03μm laser is directly generated from a 1.55μm laser by the nonlinear effect in a fiber. With the introducing of the shot noise and the technical noise into the model, we simulated the variation of the timing jitter between 1.03μm pulses and 1.55μm pulses with different model parameters, including pump parameters, filter bandwidths, and fiber lengths. At the condition of of the shot noise and the technical noise with 1% standard deviation, the lowest timing jitter obtained between the 1.03μm laser and the 1.55μm laser is 1.8fs by optimizing model parameters. Meanwhile, the energy noise is as low as 3.7%. With more stable pump lasers, it is promising to reduce timing jitter to tens of attoseconds which is close to the condition only with the shot noise. With such low timing jitter, the requirement of the synchronization between the reference laser and the external laser can be satisfied even without the feedback control in FEL. It is promising to be widely applied in the synchronization system of the free electron laser (FEL).
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Junchang Su, Xincai Diao, Qi Liu, Guoqing Chang, and Wei Liu "A self-synchronization scheme of optical-optical pulses based on the nonlinear wavelength conversion in fibers in FEL facilities", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 124784G (15 December 2022); https://doi.org/10.1117/12.2654954
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KEYWORDS
Optical fibers

Free electron lasers

Dispersion

Optical filters

Nonlinear optics

Nonlinear filtering

Solitons

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