Low differential phase noise ytterbium-doped fiber amplifier system for coherent beam combination

Low differential phase noise ytterbium-doped fiber amplifier system for coherent beam combination

A two-channel ytterbium-doped fiber amplifier system with active phase-locking reaches a differential phase noise of only 40 mrad (X/160) at 200-W channel power. Frequencies above 30 Hz did not require noise suppression, thus simplifying advanced beam-shaping through coherent beam combination.

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Veröffentlicht in:EPJ Web of Conferences 2024, Vol.307, p.2016
Hauptverfasser: Yu, Weilong, Hou, Changshun, Kerridge-Johns, William R., Nilsson, Johan
Format: Artikel
Sprache:eng
Schlagworte:
Amplifiers
Doped fibers
Noise reduction
Phase noise
Ytterbium
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Zusammenfassung:A two-channel ytterbium-doped fiber amplifier system with active phase-locking reaches a differential phase noise of only 40 mrad (X/160) at 200-W channel power. Frequencies above 30 Hz did not require noise suppression, thus simplifying advanced beam-shaping through coherent beam combination.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202430702016