Digital pre-distortion enabled chirp-optimized C-band EML in 129 Gbit/s PAM-8 signal transmission for DCI-campus
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.125550
Abstract: Abstract The use of a digital pre-distortion enabled C-band chirp-optimized electro-absorption modulated laser (EML) for Datacenter Interconnect Campus (DCI-Campus) is investigated for the first time. Pre-distortion techniques, specifically digital pre-equalization (Pre-EQ) and look-up-table (LUT), are… read more here.
Keywords: pre distortion; digital pre; distortion enabled; chirp optimized ... See more keywords
A Low-Power 28-Gb/s PAM-4MZM Driver With Level Pre-Distortion
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2020.3020128
Abstract: We present a PAM-4 optical modulator driver for Mach-Zehnder modulator (MZM), having the level pre-distortion functionality so that the ratio of level mismatch (RLM) can be optimized. The driver employs a newly proposed PAM-4 stacked… read more here.
Keywords: low power; driver; level pre; pre distortion ... See more keywords
Non-Linear Distortion Cancellation and Symbol-Based Equalization in Satellite Forward Links
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2017.2699185
Abstract: In this paper, a low-complexity symbol-based equalizer that performs non-linear distortion cancellation is proposed for application at the user terminal in the DVB-S2X satellite forward link. The channel is comprehensively modeled, including the non-linear travelling… read more here.
Keywords: distortion cancellation; distortion; non linear; symbol based ... See more keywords
Digital pre-distortion using a Gauss-Newton-based direct learning architecture for coherent optical transmitters.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.484729
Abstract: Digital pre-distortion (DPD) is a powerful technique to mitigate transmitter nonlinear distortion in optical transmissions. In this Letter, the identification of DPD coefficients based on the direct learning architecture (DLA) using the Gauss-Newton (GN) method… read more here.
Keywords: digital pre; learning architecture; dla; pre distortion ... See more keywords