.png){kind=icon}
Return
Advanced Modulation Techniques for High-Performance Computing Optical Interconnects
.png){kind=icon}
PRE
AI
DOI：10.1109/JSTQE.2012.2231405.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
We experimentally assess the performance of a 64 x 64 optical switch fabric used for ns-speed optical cell switching in supercomputer optical interconnects. More specifically, we study four alternative modulation formats and detection schemes, namely, 10-Gb/s nonreturn-to-zero differential phase-shift keying with balanced direct detection, 10-Gb/s polarization division multiplexed (PDM) quadrature phase-shift keying, 40-Gb/s single-polarization 16-ary quadrature amplitude modulation (16QAM), and 80-Gb/s PDM-16QAM, with coherent intradyne detection, in conjunction with an optimized version of the optical shared memory supercomputer interconnect system switch fabric. In particular, we investigate the resilience of the aforementioned advanced modulation formats to the nonlinearities of semiconductor optical amplifiers, used as ON/OFF gates in the supercomputer optical switch fabric under study. In addition, we compare their performance using as a benchmark the performance of conventional 10Gb/s intensity modulation direct detection (IM/DD). We show that the choice of the appropriate advanced modulation format can increase the capacity of the switch fabric, while, at the same time, it can mitigate the main nonlinear effect, i.e., cross-gain modulation that arises when using conventional IM/DD. Nonlinear phase distortion becomes the main limiting factor when advanced modulation formats are used.
Keywords:
Optical interconnects
semiconductor optical amplifiers (SOAs)
switching
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
I
IF:
5.1
Papers:
5.6K
Citations:
1.2W
Organization
Cited Papers
ShareSaveShareSaveCarrierless amplitude phase modulation of VCSEL with 4 bit/s/Hz spectral efficiency for use in WDM-PON.png)
OPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
OAAIShareSaveShareSaveShareSaveModeling nonlinearity in coherent transmissions with dominant intrachannel-four-wave-mixingOPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
OAAIShareSave
View more