| 摘要 |
An optical add-drop multiplexer (OADM) apparatus (10) includes an input/output channel (100), a drop channel (200), an add channel (300) and an optical filter (500) light signals having a specific wavelength are transmitted from an input fiber (101) and pass through the input/output channel, the specific wavelength of the light signals passes through the filter and the drop channel and goes into a drop fiber (201). Another light signal having the specific wavelength is transmitted from a add fiber (302) passes through the add channel and the filter, and combines with the reflected wavelengths of the light signals, the combined wavelengths pass through the input/output channel and go into the output fiber (102).
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