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Virtual FBGs using saturable absorbers for sensing with fiber lasers

Abstract: The spectral narrowing of Fiber Bragg Gratings (FBGs) introduced by unpumped Er-doped fiber (EDF) was analyzed for fiber lasers (FL). Owing to spatial hole burning (SHB), the spectral response of a virtual FBG can be employed for narrowing the band pass filter employed to determine the lasing wavelength of laser cavities. A common FL was mounted to analyze the spectral stability of the method, and a FL sensor for strain and temperature measurements was experimentally characterized to determine the stability of the narrowing effect achieved by the unpumped EDF, which acts as a virtual FBG. The results exhibited remarkably good narrowing effects of the spectral response of uniform FBGs.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Rodriguez-Cobo L., Perez-Herrera R., Quintela M., Ruiz-Lombera R., Lopez-Amo M., Lopez-Higuera J.,

 Fuente: Sensors, 2018, 18(11), 3593

Editorial: MDPI

 Fecha de publicación: 23/10/2018

Nº de páginas: 10

Tipo de publicación: Artículo de Revista

DOI: 10.3390/s18113593

ISSN: 1424-8220

Proyecto español: TEC 2016-76021-C2-R

Autores/as

LUIS RODRIGUEZ COBO

ROSA ANA PEREZ HERRERA

RUBEN RUIZ LOMBERA

MANUEL LOPEZ-AMO SAINZ