Laser parameter variations in a rayleigh scattering-based raman fiber laser with single fiber bragg grating reflector

• Main Authors: Sarmani, A.R., Abu Bakar, M.H., Adikan, Faisal Rafiq Mahamd, Mahdi, M.A.
• Format: Article
• Language: English
• Published: Institute of Electrical and Electronics Engineers (IEEE) 2012
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/4642/1/Sarmani-2012-Laser_Parameter_Vari.pdf; http://eprints.um.edu.my/4642/
• Institution: Universiti Malaya

The work presented in this paper details the changes in continuous-wave laser characteristics that were affected by the orientation of pumping separation. The Raman laser was constructed in forward and backward pumping schemes with respect to the 1553.3-nm fiber Bragg grating location. The laser cavity was formed by the induction of Rayleigh backscattering effects in the 51-km fiber length that served as a virtual mirror. From the results obtained, it can be concluded that low threshold operation around 788 mW was satisfied at a coupling ratio of 0 (forward pumping scheme). Moreover, the best output power attainment of 220 mW was realized when 60 of pump powers were delivered via a backward pumping scheme. Thus, the success of this research provides a basis to further understand the principle of backscattered wave interactions along the fiber longitudinal structure.