Methods and apparatus for reducing four-wave mixing

Details Methods and apparatus for reducing four-wave mixing Methods and apparatus for reducing four-wave mixing

1998-09-18

2000-09-12

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359125, 359133, 359161, H04J 1402

Patent

active

061185639

ABSTRACT:
Four-wave mixing of transmitted signals in a lightwave transmission system is reduced by (1) grouping the signals in pairs of adjacent frequencies, (2) increasing the frequency of every other pair by a fixed amount, and (3) decreasing the frequency of the remaining pairs by the same fixed amount, where the fixed amount is less than the permitted variation of the ITU grid.

REFERENCES:
patent: 5589969 (1996-12-01), Taga et al.
patent: 5696614 (1997-12-01), Ishikawa et al.
patent: 5774243 (1998-06-01), Majima
patent: 5841557 (1998-11-01), Otsuka et al.
Lee et al., "Periodic allocation of a set of unequally spaced channels for upgradable dense-WDM applications using dispersion-shifted fibers", OFC Procedings, 1998, FC5, pp. 393-394.
Y. Hamazumi et al., "Beat Induced Crosstalk Reduction Against Wavelength Difference Between Signal and Four-Wave Mixing Lights in Unequal Channel Spacing WDM Transmission", IEEE Photonics Technology Letters, 1996, vol. 8, No. 5, pp. 718-720.
F. Forghieri et al., "Reduction of Four-Wave Mixing Crosstalk in WDM Systems Using Unequally Spaced Channels", IEEE Photonics Technology Letters, 1994, vol. 6, No. 6, pp. 754-756.
F. Forghieri et al., "WDM systems with Unequally Spaced Channels", Journal of Lightwave Technology, 1995, vol. 13, No. 5, pp. 889-896.

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