Rota Rodrigo, SergioLeandro González, DanielSantarelli, GiorgioLópez-Amo Sáinz, ManuelAnia-Castañón, Juan Diego2023-04-192023-04-192022Rota-Rodrigo, S., Leandro, D., Santarelli, G., Lopez-Amo, M., & Ania-Castañón, J. D. (2022). Effect of linewidth on the relative intensity noise in random distributed feedback raman fiber lasers. Sensors, 22(21), 8381. https://doi.org/10.3390/s222183811424-822010.3390/s22218381https://academica-e.unavarra.es/handle/2454/45138We experimentally explore the relation between spectral linewidth and RIN transfer in half-open cavity random distributed feedback Raman lasers, demonstrating for the first time the possibility of adjusting the pump-to-signal RIN transfer intensity and cut-off frequency by using spectral filtering in the reflector section. We apply this approach to a 50-km laser system, operating in the C-Band, reliant on a standard single-mode fiber. We obtained a minimum bandwidth of 13 pm, which translates into a visible RIN cut-off at 800 MHz.application/pdfeng© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.LaserFiberDistributed feedbackRaman effectRIN transferRandom distributed feedback fiber lasersinfo:eu-repo/semantics/article2023-04-19info:eu-repo/semantics/openAccess