Digital pre-compensation techniques enabling high-capacity bandwidth variable transponders
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2017.09.062
Abstract: Abstract Digital pre-compensation techniques are among the enablers for cost-efficient high-capacity transponders. In this paper we describe various methods to mitigate the impairments introduced by state-of-the-art components within modern optical transceivers. Numerical and experimental results… read more here.
Keywords: compensation techniques; digital pre; pre compensation; high capacity ... See more keywords
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
FPGA implementation of adaptive digital pre-distorter with improving accuracy of lookup table by Taylor series method
Sign Up to like & getrecommendations! Published in 2018 at "Electronics Letters"
DOI: 10.1049/el.2018.1082
Abstract: Due to the non-linear behaviour of the power amplifier (PA), the amplification of signals with fluctuating envelopes leads to distortion inevitably. These non-linear effects can be counteracted by the digital pre-distortion (DPD) with the adaption… read more here.
Keywords: taylor series; digital pre; lookup table; method ... See more keywords
Vector Modulation by Laser and Electroabsorption Modulator With Digital Pre-Coding and Pre-Compensation
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2018.2846790
Abstract: We present a method to achieve vector modulation of lightwave using an electroabsorption modulator intregrated laser. The laser section is used for direct phase modulation followed by an amplitude modulation of the electroabsorption modulator section… read more here.
Keywords: digital pre; phase; modulation; electroabsorption modulator ... 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