Raman-based cw supercontinuum generation in a fiber ring laser with low-output coupling

Muhammad Assad Arshad; Alexander Hartung; Mikaёl Leduc; Nicolas Godbout; Hartmut Bartelt; Matthias Jäger

doi:10.1117/12.2311626

17 May 2018 Raman-based cw supercontinuum generation in a fiber ring laser with low-output coupling

Muhammad Assad Arshad, Alexander Hartung, Mikaёl Leduc, Nicolas Godbout, Hartmut Bartelt, Matthias Jäger

Proceedings Volume 10683, Fiber Lasers and Glass Photonics: Materials through Applications; 106833F (2018) https://doi.org/10.1117/12.2311626
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

We demonstrate a new technique to generate a continuous-wave supercontinuum based on the stimulated Raman effect in an Yb-based ring laser configuration. Continuously pumping this ring cavity with a maximum of 19W optical power, we were able to excite up to 6 Stokes orders and achieved wavelengths up to 1600nm. Due to the feedback mechanism of the ring cavity the generated spectrum does not exhibit plain and separated stokes peaks but the fundamental Raman nature of the spectrum is altered additional nonlinear effects. This results in a dense coverage and an almost complete excitation of the wavelength range from the laser wavelength to the highest stokes wavelength and hence in a continuous-wave supercontinuum. Since the main mechanism of broadening is the Raman effect, we do not rely on anomalous dispersion and modulation instability as typically required to seed continuous wave supercontinuum generation.

Citation Download Citation

Muhammad Assad Arshad, Alexander Hartung, Mikaёl Leduc, Nicolas Godbout, Hartmut Bartelt, and Matthias Jäger "Raman-based cw supercontinuum generation in a fiber ring laser with low-output coupling", Proc. SPIE 10683, Fiber Lasers and Glass Photonics: Materials through Applications, 106833F (17 May 2018); https://doi.org/10.1117/12.2311626

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