Patent ID: 9048954
Filing Date: 2015-06-02
Classification: H04B

Abstract:
1. An optical interconnect comprising: a transmitter for generating and transmitting an optical signal; a receiver for receiving the optical signal from the transmitter and for converting the received optical signal from the transmitter to an electrical signal; a pre-transmitter distort circuit connected to the transmitter for applying a pre-distort signal to the transmitter, based on the electrical signal into which the optical signal received from the transmitter is converted by the receiver, to adjust the shape of the optical signal generated by the transmitter, the pre-transmitter distort circuit including an equalizer circuit including a main circuit portion for conducting a main component of the pre-distort signal, and a feed forward circuit portion for subtracting a time delayed variable strength feed forward component of the pre-distort signal from said main component of the pre-distort signal to obtain said pre-distort signal; wherein distortions are introduced into the optical signal when the optical signal is generated by the transmitter, transmitted to the receiver, and converted by the receiver to the electrical signal; and as a result of the pre-distort signal applied to the transmitter from the pre-transmitter distort circuit, the optical signal generated by the transmitter has particular distortions to compensate for said distortions introduced into the optical signal generated by the transmitter, wherein the electrical signal, into which the optical signal is converted by the receiver, has a desired shape.