Maximum Pump Power Coupled in Raman Resonator for Maximum Power Delivered at 1115 and 1175 nm

Lelio de la Cruz May*, Efrain Mejia Beltran, Olena Benavides, Aaron Flores Gil, Angeles Yolanda Pages Pacheco, Jose Alfredo Alvarez-Chavez

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

In this report, we present our analysis of the relationship between critical power and stimulated Raman scattering in Raman fiber lasers. Through our research, we have established a connection between the R.G. Smith constant at critical power and the necessary pump power required to reach the maximum power delivered by the first Stokes just prior to the generation of the second Stokes. In our experiments, two setups were successful in reaching the second Stokes generation, one utilizing a glass–air interface as the output coupler without HR mirrors and the other using HR-FBGs for both Stokes in conjunction with a glass–air interface. We found that the 1 Km 1060-XP fiber has an R.G. Smith constant of ~4.94 at critical power, which when multiplied by 2 gives ~9.88, a value close to the R.G. Smith constant (9.75) for maximum Stokes corresponding to a pump power of 5.5 W, with an approximation of ~98.6%. Our results demonstrate the importance of knowing the R.G. Smith constant at critical power in estimating the necessary pump power to achieve maximum power delivery in any Stokes component.
Original languageEnglish
Article number531
JournalPhotonics
Volume10
Issue number5
DOIs
Publication statusPublished - 5 May 2023

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