The use of synchronous optical modulators is effective in reducing the puls
e timing jitter in long-distance soliton transmission. The inherently polar
ization-insensitive characteristics of the Fabry-Perot multiple quantum-wel
l (MQW) electroabsorption modulator make it a potentially suitable device f
or this application, We investigate the intensity and phase modulation char
acteristics of symmetric and asymmetric Fabry-Perot modulators, and show th
at, by positioning the resonant wavelength <30 nm away from the exciton abs
orption peak to obtain negative chirp operation, both configurations can be
used to successfully reduce timing jitter in a 20 Gb/s soliton system.