Passive coherent combining of two high-brightness tapered laser diodes in a Michelson external cavity

Guillaume Schimmel (1) , I Doyen (1) , Sylvie Janicot (1) , Marc Hanna (1) , J Decker (2) , P Crump (2) , G Erbert (2) , Patrick Georges (1) , Gaëlle Lucas-Leclin (1)

1 Laboratoire Charles Fabry / Lasers
2 FBH - Ferdinand-Braun-Institut für Höchtstfrequenztechnik

We propose a newCBC architecture for the passive phase-locking of a diode laser array that is designed to ensure a stable high-power operation and a high electrical-to-optical efficiency. It uses a common laser external cavity on the back side of the emitters for phase locking, while coherent beam superposition of the phase-locked beams is realized on the front side.

Domaines: Optique [physics.optics]; Optique / photonique

Guillaume Schimmel, I Doyen, Sylvie Janicot, Marc Hanna, J Decker, et al.. Passive coherent combining of two high-brightness tapered laser diodes in a Michelson external cavity. 2015. ⟨hal-01256942⟩