Abstract
The noise properties of phase sensitive amplifiers based on degenerate
four-wave mixing in optical fibers are studied taking into account the
quantum noise amplification, the amplitude and phase noise properties of the
pump sources. An analytical tool is presented for the direct calculation of
the amplifier noise figure also verified by extensive numerical simulations.
The signal power dependence of noise figure is both analytically and
numerically accented. The need for high speed and precise phase locking is
also revealed in order to diminish the effect of phase noise on the noise
properties of the amplifier.
© 2010 IEEE
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