Patent ID: 8891961
Filing Date: 2014-11-18
Classification: H04B

Abstract:
1. An optical communication device comprising: a light source capable of varying the wavelength of light to be output; a wavelength controller configured to control the wavelength of the light source; an optical multiplexer configured to multiplex light output from the light source with signal light received from a transmission path; an optical medium to which light output from the optical multiplexer is input; a monitor configured to monitor light having a predetermined wavelength output from the optical medium; and a wavelength number measuring unit configured to measure the number of wavelengths of signal light transmitted through the transmission path based on the result of monitoring by the monitor; wherein the wavelength number measuring unit measures the wavelength of the signal light based on the presence/absence of the light having the predetermined wavelength and the wavelength of wavelength variable light output from the light source.