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

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 2D wide angle finite difference beam propagation method.
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https://hal-iogs.archives-ouvertes.fr/hal-00523602
Contributor : Gaëlle Lucas-Leclin <>
Submitted on : Friday, March 30, 2012 - 6:03:07 PM
Last modification on : Wednesday, September 16, 2020 - 5:38:47 PM
Long-term archiving on: : Tuesday, December 13, 2016 - 6:31:52 PM

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David Pabœuf, Gaëlle Lucas-Leclin, Patrick Georges, Nicolas Michel, Michel Krakowski, et al.. Narrow-line coherently-combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating. Applied Physics Letters, American Institute of Physics, 2008, 93 (21), pp.211102. ⟨10.1063/1.3036896⟩. ⟨hal-00523602⟩

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