Optimizing the noise characteristics of high-power fiber laser systems
Jauregui C, Mueller M, Kienel M, Emaury F, Saraceno CJ, Limpert J, Keller U, Tuennermann A (2017)
Publication Type: Conference contribution
Publication year: 2017
Journal
Publisher: SPIE
Book Volume: 10083
Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering
Event location: San Francisco, CA, USA
ISBN: 9781510606074
DOI: 10.1117/12.2251810
Abstract
The noise characteristics of high-power fiber lasers, unlike those of other solid-state lasers such as thin-disks, have not been systematically studied up to now. However, novel applications for high-power fiber laser systems, such as attosecond pulse generation, put stringent limits to the maximum noise level of these sources. Therefore, in order to address these applications, a detailed knowledge and understanding of the characteristics of noise and its behavior in a fiber laser system is required. In this work we have carried out a systematic study of the propagation of the relative intensity noise (RIN) along the amplification chain of a state-of-the-art high-power fiber laser system. The most striking feature of these measurements is that the RIN level is progressively attenuated after each amplification stage. In order to understand this unexpected behavior, we have simulated the transfer function of the RIN in a fiber amplification stage (∼80μm core) as a function of the seed power and the frequency. Our simulation model shows that this damping of the amplitude noise is related to saturation. Additionally, we show, for the first time to the best of our knowledge, that the fiber design (e.g. core size, glass composition, doping geometry) can be modified to optimize the noise characteristics of high-power fiber laser systems.
Involved external institutions
Friedrich-Schiller-Universität Jena
Germany (DE)
Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Switzerland (CH)
Germany (DE)
Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Switzerland (CH)
How to cite
APA:
Jauregui, C., Mueller, M., Kienel, M., Emaury, F., Saraceno, C.J., Limpert, J.,... Tuennermann, A. (2017). Optimizing the noise characteristics of high-power fiber laser systems. In Ingmar Hartl, Craig A. Robin (Eds.), Proceedings of SPIE - The International Society for Optical Engineering. San Francisco, CA, USA: SPIE.
MLA:
Jauregui, Cesar, et al. "Optimizing the noise characteristics of high-power fiber laser systems." Proceedings of the Fiber Lasers XIV: Technology and Systems 2017, San Francisco, CA, USA Ed. Ingmar Hartl, Craig A. Robin, SPIE, 2017.
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