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Proceedings Paper

High-power laser diode array phase locking
Author(s): Victor V. Apollonov; Sergei I. Derzhavin; Vladimir A. Filonenko; Vitaly V. Kuzminov; Dmitry A. Mashkovsky; Alexander M. Prokhorov
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Paper Abstract

The overview of the phase-locking problem for the powerful laser diode arrays is presented. Comparison of the external Talbot cavity configuration with the other ones is held. Attention is paid to both investigation and employment of the laser diode arrays consisting of wide aperture lasers. Such arrays, placed in the external cavity, allow easier solution of the scaling up problem that results in the output lobes with both significantly increased power and low divergence. Our experiments confirm feasibility of both QCW and CW phase- locking of the LDA in the external quarter-Talbot (Lc equals ZT/4) cavity at the output power of more than 10 W with the lobes divergence of (delta) (Psi) approximately equals 0.5 mrad. Employment of the efficient porous heatexchanger along with the system that cancels both induced phase distortions arising due to heat release and existing optical imperfections has allowed a breakthrough in powerful arrays phase-locking.

Paper Details

Date Published: 3 April 2000
PDF: 13 pages
Proc. SPIE 3889, Advanced High-Power Lasers, (3 April 2000); doi: 10.1117/12.380868
Show Author Affiliations
Victor V. Apollonov, General Physics Institute (Russia)
Sergei I. Derzhavin, General Physics Institute (Russia)
Vladimir A. Filonenko, General Physics Institute (Russia)
Vitaly V. Kuzminov, General Physics Institute (Russia)
Dmitry A. Mashkovsky, General Physics Institute (Russia)
Alexander M. Prokhorov, General Physics Institute (Russia)

Published in SPIE Proceedings Vol. 3889:
Advanced High-Power Lasers
Marek Osinski; Howard T. Powell; Koichi Toyoda, Editor(s)

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