Theoretical modeling of nonlinear light scattering in Er-doped fiber amplifiers

Details Theoretical modeling of nonlinear light scattering in Er-doped fiber amplifiers Theoretical modeling of nonlinear light scattering in Er-doped fiber amplifiers

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..458..575b&link_type=abstract

Space technology and applications international forum -1999. AIP Conference Proceedings, Volume 458, pp. 575-581 (1999).

Physics

Optics

Propagation, Scattering, And Losses, Solitons, Nonlinear Optics

Scientific paper

The effect of stimulated light scattering on the gain of a three-level, step-index, doubly-clad fiber amplifier is modeled at arbitrary pump-and signal-levels. Spatial population dependence is included by assuming the guide transverse mode structure for signal and Stokes fields. This investigation uses the 1550 nm transition of Er3+ in SiO2 as example. The stimulated Brillouin scattering (SBS) threshold is found to be low, in agreement with previous experimental findings. Further calculations support the possibility of employing slightly tilted (at α≅0.1-0.2 rad) 2 mm length DFB gratings, spaced at 1-2 m intervals, for the control of SBS based on the principle of backward tunneling-mode (l=2) coupling of Stokes radiation.

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