Answer / c.ramu

An optical fiber amplifier allows the amplification of a weak
Signal-Impulse in a noncentrosymmetric nonlinear medium (e.g.
BBO). In contrast to the previously mentioned amplifiers,
which are mostly used in telecommunication environments, this
type finds its main application in expanding the frequency
tunability of ultrafast solid-state lasers (e.g.
Ti:sapphire). By using a noncollinear interaction geometry
Optical Parametric Amplifiers are capable of extreme broad
amplification bandwidths.

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