| 摘要 |
<p>An optical device and method are presented for use in monitoring at least one optical channel of an input multi-channel light signal. The device comprises a light splitting assembly for splitting the input light signal into a predetermined number of light components; a predeterminded number of tunable wavelength-selective filters each for filtering light of a specific optical channel from the light component passing therethrough; and the predetermined number of receivers, each associated with the corresponding one of said filters and operation to detect the filtered light and generate an output signal indicative thereof. The device thereby enables for processing the output signals by an electronic assembly to determine at least one of the following: a central frequency of at least one optical channel of the input light signal, a power of at least one optical channel of the input light signal, a signal to noise ratio of at least one detected optical channel, eye pattern within at least one optical channel of the input light signal; bit error rate extraction; relative timing jitter of orthogonal polarizations of at least one light channel of the input light signal, and Polarization Mode Dispersion (PMD) of at least one optical channel of the input light signal.</p> |
