We compare the slope efficiency of a 1093 nm ytterbium distributed feedback fiber laser obtained in the experiment to the value calculated within the analytical model. The measured reflection and transmission spectra of the laser cavity, which is formed by a 4 cm long π-shifted fiber Bragg grating, allowed us to determine the cavity parameters employed in the analytical model. We took into account pump absorption that is significant for the model of ytterbium fiber lasers. A good agreement between the theory and the experiment is demonstrated. The considered analytical model is suitable for optimizing distributed feedback fiber laser parameters.
© 2010 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: March 12, 2010
Manuscript Accepted: May 6, 2010
Published: June 17, 2010
Maxim A. Nikulin, Dmitriy E. Churin, Aleksandr A. Vlasov, and Evgeny V. Podivilov, "Distributed feedback ytterbium fiber laser: experiment and analytical model," J. Opt. Soc. Am. B 27, 1414-1420 (2010)