Patent ID: 7421209
Filing Date: 2008-09-02
Classification: H04B,H04L

Abstract:
1. An optical wavelength multiplexing frequency shift keying modulation system comprising: optical wavelength multiplexing signal acquisition means for outputting an optical wavelength multiplexing signal; optical frequency shift keying modulation means for acquiring an optical frequency shift keying signal including an upper side band signal and a lower side band signal by performing frequency modulation to the optical wavelength multiplexing signal output from the optical wavelength multiplexing signal acquisition means; and optical frequency shift keying signal separation means for separating the optical frequency shift keying signal output from the optical frequency shift keying modulation means into an upper side band signal and a lower side band signal; and wherein an optical wavelength multiplexing signal output from the optical wavelength multiplexing signal acquisition means is subjected to frequency modulation by the optical frequency shift keying modulation means to obtain an optical frequency shift keying signal, and the optical frequency shift keying signal separation means separates the optical frequency shift keying signal into an upper side band signal and a lower side band signal to obtain an optical frequency shift keying modulation signal.