| 摘要 |
<p>Disclosed is a wavelength analyzer for optical communications in which a wavelength error measuring unit and a channel information measuring unit are optically connected from an optical signal input unit. The wavelength error measuring unit and the channel information measuring unit are separately configured in different modules to be connected to the optical signal input unit individually and optically, or are integrally configured in one module to be optically connected to the optical signal input unit, wherein the wavelength error measuring unit outputs an error between the wavelength of an input optical signal and an ITU wavelength grid, and the channel information measuring unit outputs ITU wavelength channel information corresponding to the wavelength of an input optical signal. The wavelength analyzer for optical communications includes a reflecting type wavelength-variable filter or a transmitting type wavelength-variable filter, thereby outputting individual wavelength information even when a plurality of DWDW wavelengths are inputted at the same time.</p> |
