OPTICAL POWER METER

摘要

An optical power meter according to an embodiment of the present invention is an optical power meter for a WDM-PON and includes: a filter unit for dividing an inputted optical signal into the optical signals of two or more bands according to a wavelength; a switch unit for sequentially transmitting the optical signal separated by the filter unit; an arrayed waveguide grating (AWG) for multiplexing the optical signal inputted from the switch unit to a plurality of channels according to a plurality of periodic transmission wavelength characteristics; and a photo detection unit including a plurality of photodetectors converting the optical signal into an electric signal by being connected to each channel.