High-power all-fiber ultra-low noise laser
- Others:
- Laboratoire Photonique, Numérique et Nanosciences (LP2N) ; Université de Bordeaux (UB)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)
- Azur Light Systems.
- ALPhANOV
- Amplitude Systèmes
- Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux (ARTEMIS) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)
- Azur Light Systems ; Azur Light Systems.
Description
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.
Abstract
International audience
Additional details
- URL
- https://hal.archives-ouvertes.fr/hal-01796760
- URN
- urn:oai:HAL:hal-01796760v1
- Origin repository
- UNICA