Transmission control method of wavelength division multiplexing system
A transmission control and wavelength division multiplexing technology, applied in the field of high-speed and large-capacity optical fiber transmission systems, can solve the problems of complex structure and high cost of the signal demodulation system at the receiving end
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[0049] Such as image 3 Shown is a schematic diagram of the launch, transmission and reception of the new NRZ-DPSK WDM system. The working principles, implementation conditions and steps of each part are described in detail below.
[0050] Since the key of the present invention is to skillfully select the channels of the AWG at the transmitting end and the receiving end, so as to realize multiple functions. Therefore, first, the channel selection principles of the AWG at the transmitter and receiver are explained and explained:
[0051] According to different intervals (ie, channel intervals) of wavelengths (or frequencies) of optical signals transmitted by adjacent channels, the International Telecommunication Union (ITU) has made detailed regulations on the wavelength division multiplexing (WDM) system. WDM systems are divided into Dense Wavelength Division Multiplexing (DWDM) and Coarse Wavelength Division Multiplexing (CWDM).
[0052] The channel spacing of the DWDM sys...
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