Integrated hybrid Si/InGaAs 50 Gb/s DQPSK receiver.
作者： Stefano Faralli , Kimchau N. Nguyen , Jonathan D. Peters , Daryl T. Spencer , Daniel J. Blumenthal
DOI: 10.1364/OE.20.019726
关键词:
摘要: A monolithic 25 Gbaud DQPSK receiver based on delay interferometers and balanced detection has been designed fabricated the hybrid Si/InGaAs platform. The integrated 30 µm long InGaAs p-i-n photodetectors have a responsivity of 0.64 A/W at 1550 nm 3dB bandwidth higher than GHz. interferometer shows time 39.2 ps an extinction ratio 20 dB. demodulation Gb/s DPSK signal by single branch demonstrates its correct working principle.
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