All-Optical regenerators

An alternative method of regeneration is through all-optical without requirement to convert back and forth. Using Non-linear optical fiber allow designers to use nonlinear effects of frequency shifting and frequency generation effects for regeneration. The key advantage of all-optical regeneration is power efficiency provided by the device, and simple integration into an optical network.

Optical Amplifiers.Cost efficiency has led to repeaters being largely replaced in long-haul systems by Optical amplifiers since one ( broadband ) amplifier can be used for many wavelengths in a Wavelength Division Multiplexing (WDM) system. Note that this class of device is sometimes called "Optical Amplifier Repeater".

September 13, 2011

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