Abstract
In this paper, we realized a monolithic silicon photonic integrated
circuit (PIC) for polarization and phase diversity coherent detection. The
PIC includes two polarization beam splitters, two 90$^{\circ}$ optical hybrids, and four pairs of balanced photodiodes
implemented as integrated germanium detectors. We tested the PIC using
polarization-division multiplexed quadrature phase-shift keyed signals at 43
and at 112 Gb/s.
© 2010 IEEE
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