High-power all-fiber ultra-low noise laser

Abstract : High-power ultra-low noise single-mode single-frequency lasers are in great demand for interferometric metrology. Robust, compact all-fiber lasers represent one of the most promising technologies to replace the current laser sources in use based on injection-locked ring resonators or multi-stage solid-state amplifiers. Here, a linearly-polarized high-power ultra-low noise all-fiber laser is demonstrated at a power level of 100 W. Special care has been taken in the study of relative intensity noise (RIN) and its reduction. Using an optimized servo actuator to directly control the driving current of the pump laser diode (LD), we obtain a large feedback bandwidth of up to 1.3 MHz. The RIN reaches-160 dBc/Hz between 3 kHz and 20 kHz.
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Applied Physics B - Laser and Optics, Springer Verlag, In press
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Dernière modification le : mercredi 10 octobre 2018 - 10:10:37
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  • HAL Id : hal-01796760, version 1
  • ARXIV : 1805.09762

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Jian Zhao, Germain Guiraud, Christophe Pierre, Florian Floissat, Alexis Casanova, et al.. High-power all-fiber ultra-low noise laser. Applied Physics B - Laser and Optics, Springer Verlag, In press. 〈hal-01796760〉

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