Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1995-05-30
1997-10-07
Boudreau, Leo
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359161, 359173, 359174, 385123, H04B 1016, H04B 1002
Patent
active
056754299
ABSTRACT:
An optical communication transmission system including an optical amplifier lumped repeater system of the present invention includes, for the purpose of preventing degradation of the transmission characteristic arising from wavelength dispersion of optical fibers due to raised power of the optical signal, transmission optical fibers provided for all or most of the repeating sections and having wavelength dispersion values set to different values from zero, and optical fibers provided for the individual sections to compensate for the sum of wavelength dispersion of the sections so as to reduce the total wavelength dispersion to zero. The optical fiber for compensation for each section may be replaced by a substitutive compensation element. Alternatively, very small wavelength dispersion which remains due to failure in compensating to zero dispersion may be compensated for using a dispersion equalizer of an electric system in the reception section.
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Henmi Naoya
Nakaya Shogo
Saito Tomoki
Boudreau Leo
Mehta Bhavesh
NEC Corporation
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