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Single longitudinal mode lasers by using artificially controlled backscattering erbium doped fibers

Abstract: In this work, we propose and experimentally demonstrate a new distributed short linear cavity fiber laser. At one of the cavity ends, fabricated by a commercial femtosecond fiber laser chirped pulse amplifier, an artificially controlled backscattering erbium doped fiber section has been connected. This distributed reflector acts also as a saturable absorber, leading to the generation of tunable and switchable single longitudinal-mode laser emissions. The distributed reflector consists of 9 micro-drilled sections of about 1cm each one and randomly spread throughout 2 meters of highly doped erbium fiber. The total length of the fiber laser is 9.5 m and the laser shows a single mode behavior at all the emitted wavelengths. Using this new kind of reflecting saturable absorber, single and multiple single-mode emissions can be obtained. The achieved laser presents a pump threshold as low as 45 mW and shows up to 8 different single-mode emission lines with an optical signal to noise ratio of 45dB.

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

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

 Fuente: IEEE Access, 2021, 9, 27428-27433

Editorial: Institute of Electrical and Electronics Engineers, Inc.

 Fecha de publicación: 01/02/2021

Nº de páginas: 6

Tipo de publicación: Artículo de Revista

 DOI: 10.1109/ACCESS.2021.3058092

ISSN: 2169-3536

Proyecto español: TEC2016-76021-C2-1-R

Url de la publicación: https://doi.org/ 10.1109/ACCESS.2021.3058092