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 1.5 μm region. We demonstrate pump-limited output powers of over 30 W in fixed and continuously wavelength tunable configurations.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
V. Balaswamy, Santosh Aparanji, S. Arun, Siddharth Ramachandran, and V. R. Supradeepa
Opt. Lett. 44(2) 279-282 (2019)
V. Balaswamy, S. Arun, G. Chayran, and V. R. Supradeepa
Opt. Express 26(3) 3046-3053 (2018)
V. R. Supradeepa and Jeffrey W. Nicholson
Opt. Lett. 38(14) 2538-2541 (2013)