Abstract

To suppress the nonlinear effects and improve the output power of a phased fiber laser system, coherent beam combining (CBC) of several multi-wavelength laser beams has been considered as a promising approach, and effective CBC of several multi-wavelength laser beams by active phase controlling methods have been studied in experiment and theory[1,2]. However, phase locking of multi-wavelength fiber lasers utilizing passive self-adjusting method has not been reported. Effective phase locking of two multi-wavelength fiber lasers has been demonstrated using mutual injection coupling and single-mode fiber filtering in this paper.

© 2015 IEEE