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Open-Cavity Spun Fiber Raman Lasers with Dual Polarization Output    
Descripción:
Random distributed feedback fiber Raman lasers, where the feedback mechanism is provided by
Rayleigh backscattering, have attracted a good deal of attention since they were first introduced
in 2010. Their simple and flexible design, combined with good lasing efficiency and beam quality
properties, comparable to those of standard cavity lasers, have led to multiple applications, particularly
in the fields of fiber sensing and optical communications. In spite of these advances, the polarization
properties of random fiber Raman lasers, which can strongly affect their performance in both
sensing and communications, have barely been explored so far. In this article we experimentally and
theoretically study the polarization properties of different open-cavity laser designs, based on either
standard transmission fibers or low polarization-mode-dispersion spun fibers. By using high-power,
highly-polarized pumps, we demonstrate controllable polarization-pulling and simultaneous lasing at
close wavelengths with different output polarization properties in random distributed feedback fiber
Raman lasers. These results advance our understanding of the polarization dynamics in ultralong lasers,
and pave the way to the design of novel fiber laser sources capable of polarization-sensitive sensing and
distributed amplification.
 

Año de Publicación:    2017
Referencia:    Nuño, J.; Rizzelli, G., Gallazzi; F.; Pulido, C.; Corredera, P.; Wabnitz, S.; Ania-Castanon, J.D.; “Open-Cavity Spun Fiber Raman Lasers with Dual Polarization Output”, Scientific Reports, 7: 13681 (2017); doi:10.1038/s41598-017-13193-7
Revista:    Scientific Reports
Explotación:    No.
 
Investigación financiada por el Ministerio de Ciencia e Innovación y la Agencia Estatal de Investigación
Instituto de Óptica "Daza de Valdés"
(IO-CSIC)
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