DIXNEUF, Clément; GUIRAUD, Germain; BARDIN, Yves-Vincent; ROSA, Quentin; GOEPPNER, Mathieu; HILICO, Adèle; PIERRE, Christophe; BOULLET, Johan; TRAYNOR, Nicholas; SANTARELLI, Giorgio

doi:10.1364/OE.385095

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DIXNEUF, Clément
Laboratoire Photonique, Numérique et Nanosciences [LP2N]
Azur Light Systems

GUIRAUD, Germain
Azur Light Systems

BARDIN, Yves-Vincent
Azur Light Systems

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Optics Express. 2020, vol. 28

Optical Society of America - OSA Publishing

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We demonstrate a robust linearly polarized 365 W, very low amplitude noise, single frequency master oscillator power amplifier at 1064 nm. Power scaling was done through a custom large mode area fiber with a mode field diameter of 30 µm. No evidence of stimulated Brillouin scattering or modal instabilities are observed. The relative intensity noise is reduced down to −160 dBc/Hz between 2 kHz and 10 kHz via a wide band servo loop (1 MHz bandwidth). We achieve 350 W of isolated power, with a power stability < 0.7% RMS over 1100 hours of continuous operation and a near diffraction limited beam (M 2 < 1.1).< Réduire

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Ultra-low intensity noise, all fiber 365 W linearly polarized single frequency laser at 1064 nm

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