We present what we believe to be a new approach for active phasing a mutual injection-locked fiber laser array. The combined advantage of active phasing and mutual injection provides a robust performance in the practical turbulent environment and high tolerance on the requirement on the laser linewidth. A proof-of-concept experiment is performed by active phasing a mutually coupled laser array, and a fringe contrast of more than 79% of the in-phase intensity pattern at the receiving plane is obtained.
© 2010 Optical Society of America
Lasers and Laser Optics
Original Manuscript: October 29, 2009
Revised Manuscript: December 21, 2009
Manuscript Accepted: February 7, 2010
Published: March 19, 2010
Pu Zhou, Xiaolin Wang, Yanxing Ma, Haotong Ma, and Zejin Liu, "Stable coherent beam combination by active phasing a mutual injection-locked fiber laser array," Opt. Lett. 35, 950-952 (2010)