Abstract

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 $M^2=1.15$ 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

Efficient coherent addition of fiber lasers in free space

Moti Fridman, Vardit Eckhouse, Nir Davidson, and Asher A. Friesem
Opt. Lett. 32(7) 790-792 (2007)

Intracavity coherent addition of 16 laser distributions

V. Eckhouse, A. A. Ishaaya, L. Shimshi, N. Davidson, and A. A. Friesem
Opt. Lett. 31(3) 350-352 (2006)

Diffractive-optics-based beam combination of a phase-locked fiber laser array

Eric C. Cheung, James G. Ho, Gregory D. Goodno, Robert R. Rice, Josh Rothenberg, Peter Thielen, Mark Weber, and Michael Wickham
Opt. Lett. 33(4) 354-356 (2008)

Coherent addition of high power laser diode array with a V-shape external Talbot cavity

B. Liu, Y. Liu, and Y. Braiman
Opt. Express 16(25) 20935-20942 (2008)

Phase locking and coherent combining of high-order-mode fiber lasers

Vardit Eckhouse, Moti Fridman, Nir Davidson, and Asher A. Friesem
Opt. Lett. 33(18) 2134-2136 (2008)