Dense Wavelength Division Multiplexing (DWDM) is Wavelength division Multiplexing (WDM) with regular channel spacing of a hundred GHz for 40 channels and 50 GHz for eighty channels. Each channel consists of a TDM (time division multiplex) sign. And every of up to 80 channels can bring 2.5 Gbps for a total of two hundred billion bits consistent with 2d via the Optical Fiber. These indicators use the 3rd transmission Window, called the C-Band, meaning the light beam wavelengths are among 1530nm to 1565nm. (nm = a Nanometers or a billionth of a meter)
A simple Dense Wavelength Division Multiplexing consists of five fundamental additives:
DWDM is every so often known as wave division multiplexing (WDM) and WDM is growing denser because the technology evolves. Thus, the two phrases are frequently used synonymously.
Even newer generation, referred to as Raman Amplification, is the usage of light within the L-Band (1565 nm to 1625 nm), about doubling the maximum capacities above; accordingly, with 25 GHz spacing, now and again known as extremely dense wavelength division multiplexing, the device lets in as much as a hundred and sixty channel operation.
When we refer to DWDM as an acronym of Dense Wavelength Division Multiplexing, we mean that DWDM is formed by taking the initial letters of each significant word in Dense Wavelength Division Multiplexing. This process condenses the original phrase into a shorter, more manageable form while retaining its essential meaning. According to this definition, DWDM stands for Dense Wavelength Division Multiplexing.
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