Driver Chip for Minimizing Transmission Impairments and for Boosting Signal Transmission Rates

摘要

In accordance with the present invention, a driver chip is provided for transmitting optical signals over an optical fiber. The driver chip includes, in combination, a tapped delay equalizer, an amplifier and control circuitry. Operationally, the tapped delay equalizer modifies an input digital signal to create a compensated signal by compensating for anticipated impairments and distortions introduced during signal transmission. The amplifier then receives the compensated signal to provide gain and bias in order to establish a proper operating point for an E/O device. The control circuitry is interconnected with the tapped delay equalizer and with the amplifier to establish and control tap weights for the tapped delay equalizer to compensate for electrical and optical bandwidth limitations, along with optical dispersion effects.

主权项

1. A method for minimizing transmission impairments and for boosting transmission rates during the transmission of an optical signal by a system including electronic components and an optical fiber, the method comprising the steps of:
providing a source for a digital signal, wherein the digital signal is characterized by a symbol rate, Rs, with a time duration T for each symbol; inputting the digital signal into a tapped delay equalizer, wherein the equalizer has an n-number of taps with a time delay, dn, between adjacent taps, where Rs=1/T and dn