A new approach for the simultaneous coherent and spectral addition of a two-dimensional array of fiber lasers is presented. A combining efficiency of over 80% and a combined beam profile with M2=1.15 were experimentally obtained with an array of four fiber lasers. This approach can lead to significant upscaling in fiber laser additions.
© 2008 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: January 17, 2008
Revised Manuscript: February 19, 2008
Manuscript Accepted: February 19, 2008
Published: March 21, 2008
Moti Fridman, Vardit Eckhouse, Nir Davidson, and Asher A. Friesem, "Simultaneous coherent and spectral addition of fiber lasers," Opt. Lett. 33, 648-650 (2008)