Picture of a sphere with binary code

Making Strathclyde research discoverable to the world...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. It exposes Strathclyde's world leading Open Access research to many of the world's leading resource discovery tools, and from there onto the screens of researchers around the world.

Explore Strathclyde Open Access research content

Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating

Paboeuf, David and Lucas-Leclin, Gaëlle and Georges, Patrick and Michel, Nicolas and Krakowski, Michel and Lim, Jun and Sujecki, Slawomir and Larkins, Eric (2008) Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating. Applied Physics Letters, 93 (21). ISSN 0003-6951

[img]
Preview
PDF
2008_Pab_uf_et_al._Applied_Physics_Letters.pdf - Published Version

Download (249kB) | Preview

Abstract

We present the phase locking of an array of index-guided tapered laser diodes. An external cavity based on the self-imaging Talbot effect has been built. A volume Bragg grating is used as the output coupler to stabilize and narrow the spectrum at 976 nm. A power of 1.7 W is achieved in the in-phase single main lobe mode with a high visibility. We have checked that each emitter is locked to the Bragg wavelength with a 100 pm spectrum linewidth. The experimental results compare well with numerical simulations performed with two-dimensional wide-angle finite difference beam propagation method.