All-fiber bandwidth tunable filter for high power fiber lasers

Jaclyn S. Chan; Natasha Vukovic; Christophe A. Codemard; Michalis N. Zervas

doi:10.1117/12.2545640

21 February 2020 All-fiber bandwidth tunable filter for high power fiber lasers

Jaclyn S. Chan, Natasha Vukovic, Christophe A. Codemard, Michalis N. Zervas

Proceedings Volume 11260, Fiber Lasers XVII: Technology and Systems; 1126010 (2020) https://doi.org/10.1117/12.2545640
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

We proposed and demonstrated an all-fiber broadband tunable filter, with “band-stop” characteristics using bending of a resonant coupling fiber. Unlike conventional step-index fiber bend-induced “low-pass” filtering, with this novel approach we are able to retain the “band-stop” filter characteristics and tune the long wavelength edge of the rejected spectral band whilst the short wavelength edge is fixed by fiber design. The fiber filter can be readily spliced to and integrated with high-power single mode output ytterbium- or thulium-doped fiber lasers to provide efficient filtering of four-wave-mixing and/or stimulated Raman scattering, as well as parasitic 1um lasing in erbium/ytterbium co-doped lasers.

Conference Presentation

Citation Download Citation

Jaclyn S. Chan, Natasha Vukovic, Christophe A. Codemard, and Michalis N. Zervas "All-fiber bandwidth tunable filter for high power fiber lasers", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 1126010 (21 February 2020); https://doi.org/10.1117/12.2545640

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