Measuring signal to noise ratio of a WDM optical signal
A device for measuring optical signal-to-noise ratio (OSNR) of a wavelength division multiplexing (WDM) optical signal including multiple wavelength channels may include a tunable optical filter to select an optical wavelength channel of the plurality of optical wavelength channels. The device may a...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A device for measuring optical signal-to-noise ratio (OSNR) of a wavelength division multiplexing (WDM) optical signal including multiple wavelength channels may include a tunable optical filter to select an optical wavelength channel of the plurality of optical wavelength channels. The device may also include a polarization controller to adjust a polarization state of the selected optical wavelength channel, and a control unit to compute the OSNR of the selected wavelength channel based on a target control point. |
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