High-power operation of coherently combined tapered laser diodes in an external cavity

Abstract : We demonstrate a rear-side phase-locking architecture with two high-brightness diode lasers. This technique is based on the passive phase-locking of emitters in an external cavity on their rear facet, and their coherent combination on the front facet. Two high-brightness high-power tapered laser diodes are coherently combined using a Michelson-based cavity. The combining efficiency is above 80% and results in an output power of 6.7 W in a nearly diffraction-limited beam. The rear-side architecture is then used with a laser bar of 5 tapered emitters using an interferometric extended cavity, based on a diffractive optical element. We describe the experimental evaluation of the diffractive optical element, and the phase-locked operation of the laser bar.
Type de document :
Communication dans un congrès
Photonics West 2016, LASE, High-Power Diode Laser Technology and Applications XIV, Mar 2016, San Francisco, California, United States. Proc. SPIE, 9733
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https://hal-iogs.archives-ouvertes.fr/hal-01581447
Contributeur : Fatima Pereira <>
Soumis le : lundi 4 septembre 2017 - 16:37:06
Dernière modification le : jeudi 11 janvier 2018 - 02:05:24

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  • HAL Id : hal-01581447, version 1

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G Schimmel, Ioana Doyen, Sylvie Janicot, Marc Hanna, Patrick Georges, et al.. High-power operation of coherently combined tapered laser diodes in an external cavity. Photonics West 2016, LASE, High-Power Diode Laser Technology and Applications XIV, Mar 2016, San Francisco, California, United States. Proc. SPIE, 9733. 〈hal-01581447〉

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