1 km long hollow-core fiber with losses at the silica Rayleigh limit in the green spectral region

Matthieu Chafer (1) , Osorio Jonas (1) , Foued Amrani (1) , Frédéric Delahaye (1) , Martin Maurel (2) , Benoît Debord (1) , Frédéric Gérôme (3) , Fetah Benabid (1)

1 XLIM-PHOT - Photonique Fibre et Sources Cohérentes
2 XLIM - XLIM
3 GLOphotonics S.A.S.

In this letter, we report on the fabrication of an inhibited-coupling guiding fiber with a cladding amorphous lattice of nine tubes exhibiting a record loss of 13.8 dB/km at 539 nm. The fiber has been drawn over a length of 1 km with high stability during the drawing process (outer diameter variation of ±0.2%). To our knowledge, this is the first time that loss figures and the fundamental Rayleigh scattering limit of silica are reported for a hollow-core optical fiber in the green spectral range. Also, this is the first report on a tubular fiber draw over such a long length. Additionally, this record loss figure is the lowest ever demonstrated with any kind of optical fibers in the green spectral range.

Mots clés: hollow-core fiber; Fiber optics; photonic crystal fiber

Domaines: Optique / photonique

Matthieu Chafer, Osorio Jonas, Foued Amrani, Frédéric Delahaye, Martin Maurel, et al.. 1 km long hollow-core fiber with losses at the silica Rayleigh limit in the green spectral region. IEEE Photonics Technology Letters, 2019, 31 (9), pp.685-688. ⟨10.1109/LPT.2019.2904341⟩. ⟨hal-02150178⟩