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Tunable integrated variable bit-rate DPSK silicon receiver

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Abstract

We integrate a wavelength-tunable microring resonator with a monolithic Ge-on-Si photodetector for use as a variable bit-rate silicon receiver. The integrated receiver has a responsivity of 0.7A/W. We achieved error-free operation for a wide range of bit rates from 5Gb/s to 12.5Gb/s. The wavelength tuning was realized by a TiN-based thermal heater, which enabled tuning of up to 1 free spectral range.

© 2012 Optical Society of America

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