Stimulated thermal Rayleigh scattering in optical fibers

Spontaneous inelastic Rayleigh scattering in optical fibers.

Rayleigh scattering (RS) adds noise to signals that are transmitted over optical fibers and other optical waveguides. This noise can be the dominant noise source in a range between 10 Hz and 100 kHz from the carrier and can seriously degrade the performance of optical systems that require low close-in noise. Using heterodyne techniques, we demonstrate that the backscattered close-in noise spect...

Rayleigh scattering in few-mode optical fibers

The extremely low loss of silica fibers has enabled the telecommunication revolution, but single-mode fiber-optic communication systems have been driven to their capacity limits. As a means to overcome this capacity crunch, space-division multiplexing (SDM) using few-mode fibers (FMF) has been proposed and demonstrated. In single-mode optical fibers, Rayleigh scattering serves as the dominant m...

Stimulated brillouin scattering in optical fibers pdf

Amplification of Light in Absorbing Media: Stimulated Thermal Rayleigh Scattering

Using well defined input pulses the amplification by stimulated thermal Rayleigh scattering was investigated experimentally as a function of time (within the pulse), of absorption coefficient, and of interaction length. The frequency difference between the two interacting light pulses was varied with an accuracy better than Av/v = 10~8. Amplification was measured in the backward direction and a...

Laser Intensity Scaling through Stimulated Scattering in Optical Fibers Dissertation

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