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Multi-order, automatic dispersion compensation for 1.28 Terabaud signals

Publication date 2012
B-Phot Authors Jurgen Van Erps
DOI 10.1117/12.923031
Citation
Y. Paquot et al., “Multi-order, automatic dispersion compensation for 1.28 Terabaud signals,” presented at the Proc. SPIE, Photonics Europe 2012, 2012, vol. 8434, p. 84340I.
Abstract Transmitting ultra-high symbol rate optical signals remains a challenge due to their high sensitivity to fluctuations of GVD and higher orders of dispersion in the transmission link. Being able to cancel the impairments due to those fluctuations is a key requirement to make transmission of ultrashort optical pulses practical. We demonstrate an automatic compensation scheme able to keep an Optical Time Division Multiplexed (OTDM) signal stable at a bandwidth of up to 1.28 Tbaud in spite of external perturbations. Our approach is based on monitoring the signal with a photonic-chip-based all-optical RF-spectrum analyzer. The measurement of a single parameter extracted from the RF-spectrum is used to drive a multidimensional optimization algorithm. We apply the method to the real time simultaneous compensation for 2nd, 3rd and 4th order dispersion using an LCOS spectral pulse shaper (SPS) as a tunable dispersion compensator.
Attachment Paquot-SPIE12-BestStudentPaperAward.pdf (1.73 MB)
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