High-speed transmission system for optical channels

Details High-speed transmission system for optical channels High-speed transmission system for optical channels

2011-07-19

2011-07-19

Pascal, Leslie (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S186000, C398S189000

Reexamination Certificate

active

07983569

ABSTRACT:
A method and apparatus for transmission of data on bandwidth limited fiber optic channels. A multilevel signaling alphabet having multiple levels of optical intensity are used to transmit signals on optical channels. In order to counteract the decrease in signal to noise ratio resulting from the use of a multilevel signaling alphabet over a bilevel signaling alphabet trellis encoding of the data to be transmitted is employed. To counteract intersymbol interference due to signaling faster than the Nyquist Rate, equalization methods such as Tomlinson-Harashima precoding and decision feedback equalization are employed.

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