OPTICAL RECEIVER WITH A WAVELENGTH RECOGNITION AND WAVELENGTH DISTINGUISH APPARATUS AND METHOD USING THE OPTICAL RECEIVER

摘要

Disclosed are an optical receiver with a wavelength recognizing function, a wavelength determining device using the same, and a method thereof. According to an embodiment of the present invention, the optical receiver includes a distributor distributing the optical intensity of an input optical signal, a first receiving part performing photoelectric conversion to the optical signal distributed by the distributor, a filter having different passband characteristics depending on a wavelength for the optical signal distributed by the distributor, a second receiving part performing photoelectric conversion to the optical signal passing through the filter, and a comparing part determining the wavelength of the input optical signal by comparing the signals converted by the first and second receiving parts to each other.