Abstract
Erbium-doped fiber amplifiers (EFDAs) have a 1550-nm center wavelength and 35-nm bandwidth, determined by the erbium ions that they are based on. In contrast, fiber-optical parametric amplifiers (OPAs) rely on the third-order nonlinearity of the fiber material, and they can in principle be operated at an arbitrary center wavelength, corresponding to the| zero-dispersion wavelength (λ0) of the fiber. Their bandwidth depends on pump power, fiber nonlinearity, and fiber dispersion; hence there are opportunities for increasing OPA bandwidth, not available with doped-fiber amplifiers. In addition, the presence of a frequency-shifted idler indicates that such devices can also be used as broadband wavelength converters, possibly exhibiting high conversion efficiency.
© 1996 Optical Society of America
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