Abstract
Modal and chromatic dispersion measurements in multimode and single-mode fibers provide important information about the bandwidth limitations in optical fiber transmission. A fiber Raman laser based on stimulated Raman scattering and sequential Stokes conversion in single-mode fibers pumped with a Q-switched and mode-locked Nd: YAG laser at 1.06 μm can provide subnanosecond pulses in the 1-1.7-μm region for dispersion measurements in both multimode and single-mode fibers.1-3 While this IR fiber Raman laser-based measurement system has been very useful and widely adopted, it has limitations in terms of time resolution (limited by the mode-locked laser pulse width, ~140 psec) and is not suitable for field measurements because of large size.
© 1982 Optical Society of America
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