External-cavity designs for phase-coupled laser diode arrays

Gaëlle Lucas-Leclin (1) , David Pabœuf (1) , Patrick Georges (1) , Nicolas Michel (2) , Michel Calligaro (3) , Michel Krakowski (2) , Jun Lim (4) , Slawomir Sujecki (4) , Eric Larkins (4)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa
2 III-V Lab - Alcatel-Thalès III-V lab
3 Thales Research and Technology [Palaiseau]
4 The School of Electronic and Electrical Engineering

We describe passive phase-locking architectures based on external-cavity setups to improve the brightness of diode laser bars. Volume Bragg gratings are used to stabilize the lase line. Numerical modelling and experimental results will be presented.

Keywords: diode laser array; phase locking; coherent combining

Domains: Optics [physics.optics]; Optics / Photonic

Gaëlle Lucas-Leclin, David Pabœuf, Patrick Georges, Nicolas Michel, Michel Calligaro, et al.. External-cavity designs for phase-coupled laser diode arrays. High Power Diode Lasers and Systems, Oct 2009, Coventry, United Kingdom. ⟨hal-00531349⟩