Rate matching device, optical network device having the rate matching device and rate matching method in WDM-PON

摘要

A rate matching device, an optical network device having the rate matching device, and a rate matching method in a WDM-PON(Wavelength Division Multiplexing-Passive Optical Network) are provided to sufficiently provide an economically physical high band to subscribers by adjusting a data transfer rate of a home station and that of a remote station according to transmission characteristics of a WDM-PON link and matching them. An initialization unit(141) generates and outputs RIN(Relative Intensity Noise) measurement data, and when a transmission performance value corresponding to the RIN measurement data is received from a remote station, the initialization unit(141) adjusts transfer rate of data transmitted/received through an optical fiber(300) according to the transmission performance value. A photoelectric transformation unit(143) converts the RIN measurement data into a light signal, and transmits it to the remote station through the optical fiber(300). The initialization unit(141) includes random patterns as the RIN measurement data in every transmission wavelength that can be transmittable through the optical fiber(300). A scrambler/descramble(142) scrambles the RIN measurement data so that each random pattern included in the transmission wavelength can be randomly distributed as possible so as to be transmitted through the optical fiber(300).