GAAS ICS ARM 1O-GB S OPTICAL COMMUNICATIONS-SYSTEMS/

DIGITAL fiber-optic communications systems at 10 Gb/s may seem futuris tic to some designers, but the technology in the form of GaAs integrat ed circuits (ICs), already exists. By understanding the capabilities o f these ICs, today's communications-system designers can effectively c reate high-speed Links. In addition to the more conventional S-paramet ers, IC designers should consider logic ones and zeros, clock skew, an d fanout loading as a new microwave tactic.