Milan: Adaptive equaliser for optical communication systems

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Researchers at Politecnico di Milano have developed an integrated adaptive equalizer for use in optical fibre networks without the need to convert the signal from optical to electrical first. The device is fully transparent to every modulation format and can handle very high bit rates.

The device can filter out interference including chromatic, polarisation mode dispersion and nonlinear effects. It can be used either at the receiver side, before the optical-electrical converter, or for signal regeneration within optical networks, without the need for signals to be converted from optical to electrical and back again. The technology has patent protection.