Abstract
We report a novel evanescent-coupled germanium electro-absorption modulator with a small active area of 16 µm2 giving an extinction ratio of ~10 dB for a wavelength range of 1580-1610 nm. In addition, monolithic integration of both evanescent-coupled Ge electro-absorption modulator and Ge p-i-n photodetector is demonstrated for the first time.
© 2011 Optical Society of America
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