DESIGN ISSUES FOR MIL-STD-1773 OPTICAL-FIBER AVIONICS DATA BUSES

In this paper, several design issues on highly reliable MIL-STD-1773 ( or 1553B) optical fiber avionics data buses are investigated. Two opti cal modulation techniques are proposed for avionics data buses, and th ey can be used to efficiently salve the problems associated with the f ast identification of correct operation states for optical transmitter s while maintaining less complexity of transceivers. The implementatio n of the proposed techniques is discussed. We also deal with the selec tion of optical devices and fibers to improve the reliability and powe r budget of optical fiber avionics data buses. Furthermore, some futur e improvements on avionics data bus systems are pointed out in this pa per.