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Wavelength-switchable L-band fiber laser assisted by random reflectors

Abstract: A wavelength-switchable L-band erbium-doped fiber laser (EDFL) assisted by an artificially controlled backscattering (ACB) fiber reflector is here presented. This random reflector was inscribed by femtosecond (fs) laser direct writing on the axial axis of a multimode fiber with 50 um core and 125 um cladding with a length of 17 mm. This microstructure was placed inside a surgical syringe to be positioned in the center of a high-precision rotation mount to accurately control its angle of rotation. Only by rotating this mount, three different output spectra were obtained: a single wavelength lasing centered at 1574.75 nm, a dual wavelength lasing centered at 1574.75 nm and 1575.75 nm, and a single wavelength lasing centered at 1575.5 nm. All of them showed an optical signal-to-noise ratio (OSNR) of around 60 dB when pumped at 300 mW.

 Autoría: Perez-Herrera R.A., Roldan-Varona P., Sanchez-Gonzalez A., Rodriguez-Cobo L., Lopez-Higuera J.M., Lopez-Amo M.,

 Fuente: Journal of the European Optical Society-Rapid Publications, 2023, 19(1), 2

 Editorial: EDP Sciences

 Fecha de publicación: 13/01/2023

 Nº de páginas: 5

 Tipo de publicación: Artículo de Revista

 DOI: 10.1051/jeos/2022015

 ISSN: 1990-2573

 Proyecto español: PID2019-107270RB-C21

Autoría

ROSA ANA PEREZ HERRERA

PABLO ROLDAN VARONA

SÁNCHEZ GONZÁLEZ, A.

LUIS RODRIGUEZ COBO

LÓPEZ AMO, MANUEL