Open AccessPolarisation state optimisation in observing Brillouin scattering signal in polymer optical fibres
Author(s) -
Mizuno Y.,
Hayashi N.,
Nakamura K.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2012.3918
Subject(s) - brillouin scattering , brillouin zone , optical fiber , rayleigh scattering , materials science , optics , signal (programming language) , heterodyne detection , light scattering , optical power , power (physics) , scattering , optoelectronics , physics , laser , computer science , quantum mechanics , programming language
In general, the state of polarisation (SOP) should be adjusted to optimise the signal‐to‐noise ratio of Brillouin measurement based on self‐heterodyne detection. Although Brillouin Stokes power in silica fibres is known to be enhanced by optimising the SOP, the role of SOP optimisation in polymer optical fibres (POFs) is quite different from that in silica fibres. In this reported work, it is clarified that the role of SOP optimisation in POFs lies not in enhancing the Brillouin Stokes power but in suppressing the tail of the Rayleigh‐scattered light spectrum.