Arrangement for reducing the stimulated brillouin scattering in an optical waveguide fiber
OwnerPeter Krummrichinventor
Life of this patent
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Abstract
The formation of a mechanical wave having a greater amplitude and therefore a stimulated Brillouin scattering is prevented in that the light waveguide transmission is divided into different sections and in that the sections are acoustically decoupled from one another. This can also be achieved in that the phase relationship between the fed-in and optical wave or, respectively, backscattered light wave is disturbed by longitudinal non-homogeneities of the fiber or by purposeful destructive interference.
Claims13
An arrangement for reducing the stimulated Brillouin scattering in an optical waveguide fiber, said arrangement including an optical wave fiber being divided into sections, said sections being acoustically decoupled against one another so that a disturbing Brillouin scattering does not occur.
An arrangement for reducing the stimulated Brillouin scattering in a transmission fiber, said arrangement comprising the transmission fiber being provided which has changes in its longitudinal non-homogeneities, which result in different spreading speeds of a wave selected from optical waves and acoustic waves, and which disturbs the phase relationship between a transmitted optical wave and thereby excited acoustic and backscattered optical waves.
An arrangement for reducing stimulated Brillouin scattering in an optical transmission fiber, said arrangement comprising at least one fiber section having a deviating spreading speed for optical waves being inserted into the transmission fiber, with one of the length and spreading speeds of the fiber section being dimensioned so that destructive interference occurs between the reflected light waves.
An arrangement for reducing the stimulated Brillouin scattering in an optical transmission fiber, said arrangement comprising at least one fiber section having a deviating spreading speed for an acoustic wave being inserted in the light waveguide transmission fiber, said fiber sections having one of the length and spreading speeds dimensioned so that a destructive interference occurs between the reflected optical waves.
Dependencies are inferred from the claim text.