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This paper reviews recent progress on CMOS-integrated optical receivers for on-chip interconnects, which have become attractive for achieving communication bandwidth well beyond terabit-per-second with low-power consumption. The design of optical receivers and the performance metrics required from the photodetector (PD) for a low-power receiver is discussed. The progress in waveguide-integrated germanium...
As multi-core processor architectures continue to evolve as a promising platform for high-performance computing, an additional set of challenges emerges for the global interconnects between cores. In particular, the limited throughput and large power consumption of electrical interconnects become dominant factors limiting the continued scaling of power performance. One promising solution is to replace...
We investigated ultra-compact optical buffers using cascaded ring resonators and photonic crystal waveguides on silicon-on-insulator platform. Group delay exceeding 500 ps was realized at 20 Gbps, corresponding to buffering of 10 bits using up to 100 cascaded resonators.
We investigate experimentally and theoretically self-phase modulation and group velocity dispersion induced spectral broadening of picosecond pulses in silicon wires. Already for very low peak powers the limit for dense wavelength demultiplexing is reached.
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