Abstract:IntroductionOptical modulators are important components in high-speed fiber-optical communication. The advantage over using a direct modulated laser is primarily that it is possible to generate optical pulses with lower frequency chirp, which considerably extends the transmission distance on the optical fiber. Further, it avoids the modulation speed limitations of interband semiconductor lasers. Currently, state of the art modulators at the communications wavelength 1.55 µm are typically based on interband tra… Show more
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