Narrow-line coherently-combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating - Archive ouverte HAL Access content directly
Journal Articles Applied Physics Letters Year : 2008

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

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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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Dates and versions

hal-00523602 , version 1 (30-03-2012)

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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, 2008, 93 (21), pp.211102. ⟨10.1063/1.3036896⟩. ⟨hal-00523602⟩
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