Tunable Raman fiber laser induced by Rayleigh backscattering in an ultra-long cavity.

• Main Authors: Mahdi, Mohd Adzir, Zakaria, Azmi, Abd. Wahab, Zaidan, Sarmani, A. R., Abu Bakar, M. H.
• Format: Article
• Language: English; English
• Published: European Optical Society 2011
• Online Access: http://psasir.upm.edu.my/id/eprint/23511/1/Tunable%20Raman%20fiber%20laser%20induced%20by%20Rayleigh%20backscattering%20in%20an%20ultra.pdf; http://psasir.upm.edu.my/id/eprint/23511/; http://www.myeos.org/

We report an ultra-long Raman laser with a 46 km fiber length that behaved as a Rayleigh back-scattering–based optical feedback. The laser was tunable from 1550 nm to 1571 nm (3 dB bandwidth) with the insertion of an optical grating filter. Evaluations on the spectral evolution and power development...