What is wavelength conversion and why is it important?
Wavelength conversion is the changing of one wavelength to another for transport. Due to the loss characteristics of 1310nm & 850 nm signals, sometimes it is necessary to convert these signals to 1550 nm wavelength to transport them over a long fiber span and take advantage of the lower loss at 1550nm. Wavelength conversion is also used in the conversion of wideband optical signals, such as 1310nm or 1550nm, to discrete ITU CWDM or DWDM wavelengths to allow multiple wavelengths to be combined with other wavelengths for transport over a common fiber.
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