Abstract
Mach-Zehnder (MZ) intensity modulators are well suited to transmission applications in multigigabit, long distance optical fiber systems because of the ability to control the frequency chirp in these devices [1]. To date, system results have only been reported for LiNb03 MZ modulators. Although DI-V semiconductor MZ modulators have been fabricated by other groups [2,3], we report here the first system experiment performed with such a device. The III-V semiconductor device is compact (.25 mm X1.5 mm), has low drive power requirements and is potentially integrable with a laser [4]. 10 Gb/s NRZ transmission is demonstrated over 120 km of normal fiber with a push-pull drive of only 2 V peak-peak/side and a dispersion penalty of 4.8 dB. No dispersion penalty is obtained for fiber lengths up to 80 km.
© 1993 Optical Society of America
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