Broadband wavelength tuning of hybrid femtosecond Er/Tm fiber laser system in microstructured suspended-core tellurite fiber

Maksim Yu. Koptev; Elena A. Anashkina; Alexey V. Andrianov; Vitaly V. Dorofeev; Alexey F. Kosolapov; Sergey V. Muravyev; Arkady V. Kim

doi:10.1117/12.2211630

11 March 2016 Broadband wavelength tuning of hybrid femtosecond Er/Tm fiber laser system in microstructured suspended-core tellurite fiber

Maksim Yu. Koptev, Elena A. Anashkina, Alexey V. Andrianov, Vitaly V. Dorofeev, Alexey F. Kosolapov, Sergey V. Muravyev, Arkady V. Kim

Author Affiliations +

Proceedings Volume 9728, Fiber Lasers XIII: Technology, Systems, and Applications; 97281N (2016) https://doi.org/10.1117/12.2211630
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

In this study, we propose a widely tunable in the 1.6-2.65 μm range femtosecond fiber laser source, generating high-quality sech-shaped pulses with the duration of order 100 fs. Experimental setup contains hybrid all-fiber Er/Tm pump laser generating 150 fs pulses of 2 nJ in Erbium (1.56 μm) channel and 125 fs pulses of 4 nJ in Thulium (2 μm) channel respectively. This laser source was coupled to a 50 cm piece of suspended-core microstructured TeO₂-WO₃- La₂O₃ glass fiber with launching efficiency of about 10%. We have observed Raman self-frequency shifting solitons in this fiber with maximum red shift of 2.25 μm for Erbium channel and 2.65 μm for Thulium channel. By varying energy of pump pulses, solitons can be tuned in broadband spectral region. We have made theoretical studies of nonlinear pulse dynamics in the tellurite fiber with carefully measured and calculated parameters. Numerical simulation is in a very good agreement with the experiment

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Maksim Yu. Koptev, Elena A. Anashkina, Alexey V. Andrianov, Vitaly V. Dorofeev, Alexey F. Kosolapov, Sergey V. Muravyev, and Arkady V. Kim "Broadband wavelength tuning of hybrid femtosecond Er/Tm fiber laser system in microstructured suspended-core tellurite fiber", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97281N (11 March 2016); https://doi.org/10.1117/12.2211630

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