Rota Rodrigo, Sergio

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Rota Rodrigo

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Sergio

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Ingeniería Eléctrica y Electrónica

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  • PublicationOpen Access
    Watt-level green random laser at 532  nm by SHG of Yb-doped fiber laser
    (Optical Society of America, 2018) Rota Rodrigo, Sergio; Gouhier, B.; Dixneuf, C.; Antoni Micollier, L.; Guiraud, G.; Leandro González, Daniel; López-Amo Sáinz, Manuel; Traynor, N.; Santarelli, Giorgio; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren; Institute of Smart Cities - ISC; Ingeniería Eléctrica, Electrónica y de Comunicación
    We have developed a Watt-level random laser at 532 nm. The laser is based on a 1064 nm random distributed ytterbium-gain assisted fiber laser seed with a 0.35 nm line-width and 900 mW polarized output power. A study for the optimal length of the random distributed mirror was carried out. An ytterbium-doped fiber master oscillator power amplifier architecture is used to amplify the random seeder laser without additional spectral broadening up to 20 W. By using a periodically poled lithium niobate(PPLN) crystal in a single pass configuration we generate in excess of 1 W random laser at 532 nm by second harmonic generation with an efficiency of 9%. The green random laser exhibits an instability <1%, optical signal to noise ratio >70 dB, 0.1 nm linewidth and excellent beam quality.