Broadband fiber-optical parametric amplifiers and wavelength converters with low-ripple Chebyshev gain spectra.
Theory predicts that a two-pump fiber optical parametric amplifier or wavelength converter operated near the fiber zero-dispersion wavelength can exhibit a gain spectrum approximated by a Chebyshev polynomial of order 8. Under realistic conditions of pump spacing and fiber dispersion, very low-gain ripple can be obtained over a large bandwidth. For example, a dispersion-shifted fiber can provide a signal amplifier with a gain of 20 dB with 0.2-dB uniformity over a 45-nm bandwidth. Potential limitations are discussed.
Marhic
M E
ME
Park
Y
Y
Yang
F S
FS
Kazovsky
L G
LG