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arXiv · 1711.10966

High power, fixed and tunable wavelength, Grating-free Cascaded Raman fiber Lasers

V. Balaswamy·S. Arun·Santosh Aparanji·Vishal Choudhury·V. R. Supradeepa
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Abstract

Cascaded Raman lasers enable high powers at various wavelength bands inaccessible with conventional rare-earth doped lasers. The input and output wavelengths of conventional implementations are fixed by the constituent fiber gratings necessary for cascaded Raman conversion. We demonstrate here, a simple architecture for high power, fixed and wavelength tunable, grating-free, cascaded Raman conversion between different wavelength bands. The architecture is based on the recently proposed distributed feedback Raman lasers. Here, we implement a module which converts the Ytterbium band to the eye-safe 1.5micron region. We demonstrate pump-limited output powers of over 30W in fixed and continuously wavelength tunable configurations.

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V. Balaswamy, S. Arun, Santosh Aparanji, Vishal Choudhury, V. R. Supradeepa. 2018-04-04. High power, fixed and tunable wavelength, Grating-free Cascaded Raman fiber Lasers. https://doi.org/10.1364/ol.43.001574

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