Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1995-04-20
1997-06-03
Boudreau, Leo
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359179, 359173, 385123, H04B 1000
Patent
active
056360460
ABSTRACT:
The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength .lambda..sub.0 of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.
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Ishikawa George
Miyata Hideyuki
Onaka Hiroshi
Otsuka Kazue
Sekiya Motoyoshi
Boudreau Leo
Fujitsu Limited
Mehta Bhavesh
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