| 摘要 |
PURPOSE: An apparatus for inspecting an optical signal wavelength and an optical electric power, method for inspecting and a material for recording the same are provided to watch a mean optical electric power as measure the size of a modulated optical signal and an optical signal wavelength as measure the size and the phase of a modulated signal. CONSTITUTION: An apparatus for inspecting an optical signal wavelength and an optical electric power includes a first part(203) for receiving light, a band pass filter, a second part(207) for receiving light, an analog/digital transformation part(204, 208), and a part(205) for watching a wavelength and an optical electric power. The first part for receiving light is to receive an optical signal modulated by a pilot tone generation current and transform into an electric signal. The band pass filter is to receive an optical signal transformed by the pilot tone generation current and perform a band pass filtering. The second part for receiving light is to receive the filtered optical signal from the band pass filter and transform into an electrical signal, The analog/digital transformation part is to receive an analog signal from the first and second parts for receiving light, and transform into a digital signal. The part for watching a wavelength and an optical electric power is to receive the digital signal from the first and second parts for receiving light, perform a frequency transformation, and watch the wavelength and the optical electrical power.
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