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. 2000 Sep 15;25(18):1352-4.
doi: 10.1364/ol.25.001352.

Frequency-narrowed external-cavity diode-laser-array bar

B Chann, I Nelson, T G Walker

Frequency-narrowed external-cavity diode-laser-array bar

B Chann et al. Opt Lett. .

Abstract

We demonstrate that appropriately designed external cavities can be used to frequency narrow high-power diode-array bars. Using a commercial 20-W array, we narrow the linewidth to 50 GHz with 14 W of cw output power. A magnifying telescope and a cylindrical collimating lens minimize broadening owing to curvature in the alignment of the diode-array elements.

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