Patent ID: 6462845
Filing Date: 2002-10-08
Classification: H04J

Abstract:
An optical communication device, comprising:an optical transmission line for transmitting a first wavelength therealong; a light source for emitting light lying within a wide band of wavelengths; a plurality of transmitting means for respectively passing or cutting off a plurality of different second wavelengths other than the first wavelength, lying within the wide band of wavelengths generated from said light source thereby to generate light signals; a first filter arranged on said optical transmission line for passing said first wavelength and reflecting said second wavelengths thereby to multiplex the first wavelength transmitted through said optical transmission line and the second wavelengths transmitted through said transmitting means and transmit the resultant band of wavelengths to said optical transmission line; a second filter arranged on said optical transmission line for passing said first wavelength and reflecting said second wavelengths, thereby transmitting the first wavelength of the band of wavelengths transmitted from said first filter through said optical transmission line to said optical transmission fine and separating the second wavelengths; and a plurality of receiving means for receiving respective light signals in association with said transmitting means based on the second wavelengths separated by said second filter.