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Coherently combined 16-channel multicore fiber laser system

: Klenke, A.; Müller, M.; Stark, H.; Stutzki, F.; Hupel, C.; Schreiber, T.; Tünnermann, A.; Limpert, J.

Volltext ()

Optics Letters 43 (2018), Nr.7, S.1519-1522
ISSN: 0146-9592
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IOF ()

We present a coherently combined laser amplifier with 16 channels from a multicore fiber in a proof-of-principle demonstration. Filled-aperture beam splitting and combination, together with temporal phasing, is realized in a compact and low-component-count setup. Combined average power of up to 70 W with 40 ps pulses is achieved with combination efficiencies around 80%.