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2009
Conference Paper
Titel
Coherent detection of a 50 Gb/s QPSK signal using an InP 90 deg hybrid monolithically integrated with balanced photodetectors
Abstract
Error-free detection of a single-polarization 50 Gb/s NRZ-QPSK signal using a coherent detector based on monolithic integration of a waveguide 90 deg hybrid with two pairs of high-speed balanced photo-detectors is demonstrated and the BER performance is evaluated in a 480 km transmission experiment.