EFFECT OF OPTICAL BEAT INTERFERENCE ON THE DYNAMIC-RANGE OF A SUBCARRIER MULTIPLE-ACCESS PASSIVE OPTICAL NETWORK USING FABRY-PEROT LASERS

Fiber-in-the loop systems that use subcarrier multiple access can have error floors from optical beat interference (OBI). We show that; when Fabry-Perot lasers are used, OBI can limit the allowable variation in received power from the lasers in the multiple access system. We demo nstrate a 7 dB increase in the allowable power variation by using a ve ry large optical modulation index.