New design for passive coherent coupling of fiber lasers

François Jeux (1) , Agnès Desfarges-Berthelemot (1) , Vincent Kermène (1) , Alain Barthélémy (1) , David Sabourdy , J.E Montagne

1 XLIM-PHOTONIQUE - PHOTONIQUE

A new passive technique approach to phase lock a laser array is proposed and analyzed. It improves the laser combining efficiency with a large number of emitters. Our architecture combines selective coupling based on phase-contrast filter and resonant phase nonlinearity of amplifiers. A numerical study predicts that with 20 fiber lasers the architecture leads to a phase locking efficiency which is twice the value observed up to now in published experiments.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

François Jeux, Agnès Desfarges-Berthelemot, Vincent Kermène, Alain Barthélémy, David Sabourdy, et al.. New design for passive coherent coupling of fiber lasers. Proc. SPIE 8547, High-Power Lasers 2012: Technology and Systems, 85470O, 2012, 8547, pp.Inconnu. ⟨10.1117/12.975692⟩. ⟨hal-00797047⟩