Abstract
Wavelength conversion based on degenerate four-wave mixing in a photonic crystal fiber with two
zero-dispersion wavelengths is investigated both theoretically and experimentally. The proposed concept of universal
band translation in a single-pass traveling-wave structure offers a wavelength band rather than a single-wavelength
mapping between distant spectral ranges. Near-infrared signals are modulated using both harmonic and pseudorandom
bit sequences and translated to the visible optical band. Multiple-channel translation, which produces
wavelength-division-multiplexed idlers in the visible band, is demonstrated for the first time. The performance of
the translation process is measured both spectrally and temporally for both single- and multiple-channel signals.
© 2007 IEEE
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