Incorrect wavelength detected by the MCA/MS2 board for the OTU board of the Super WDM

3

The implementation of the Super WDM system is different from that of the common WDM system in the line modulation format of the transmit part. The Super WDM system uses the CRZ encoding format while the common WDM system uses the NRZ encoding format. These two modulation formats have different spectral widths and shapes in the corresponding frequency domains. For the NRZ encoding format, the width of �?0 dB spectrum is about 0.2 nm to 0.3 nm, and the spectral shape is shown in Figure 1. For the CRZ encoding format, the width of �?0 dB spectrum is about 0.64 nm, and the spectral shape is shown in Figure 2. The existing MCA board cannot select the spectral width of the wavelengths to be scanned, the adjacent wave crests in three wave crests of the LWFS board will be scanned. As a result, the wavelength offset will exceed the threshold.

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top