Kilowatt-level tunable all-fiber narrowband superfluorescent fiber source with 40 nm tuning range
Abstract
In this study, we presented a high-power widely tunable all-fiber narrowband superfluorescent fiber source (SFS) by employing two tunable bandpass filters and three amplifier stages. More than 935 W output power is achieved, with a slope efficiency of >75% and a beam quality factor of M2=1.40. The tuning of the narrowband SFS ranges from ∼1045 nm to ∼1085 nm with a full width at half maximum linewidth of less than 0.71 nm. The tunable narrowband SFS stably operates without the influence of parasitic oscillation and self-pulsing effects under maximum power. To the best of our knowledge, this study is the first to demonstrate a widely tunable all-fiber narrowband SFS around 1 µm wavelength region with output power reaching kilowatt-level.
- Publication:
-
Optics Express
- Pub Date:
- March 2020
- DOI:
- 10.1364/OE.387405
- Bibcode:
- 2020OExpr..2810378L