J. J. Granada Torres, A. Chiuchiarelli, V. Thomas, S. Ralph, A. M. Cárdenas Soto, N. Guerrero González
{"title":"Adaptive nonsymmetrical demodulation based on machine learning to mitigate time-varying impairments","authors":"J. J. Granada Torres, A. Chiuchiarelli, V. Thomas, S. Ralph, A. M. Cárdenas Soto, N. Guerrero González","doi":"10.1109/AVFOP.2016.7789906","DOIUrl":"https://doi.org/10.1109/AVFOP.2016.7789906","url":null,"abstract":"We proposed and experimentally demonstrated a machine learning-based nonsymmetrical demodulation technique for a DSP-enabled receiver, with the aim of enabling time-varying nonlinear mitigation. Experimental results showed that nonsymmetrical demodulation can reduce the SER by up to 0.7 decades, when assuming time frames consisting of 10 k symbols and fiber transmission of 250 km. The proposed technique is transparent to the specific source of nonlinearity, which makes it simple yet robust. This machine learning method may also allow simplification of the standard demodulation blocks in particular the equalizer. Employing short time windows for demodulation further enables inline optical monitoring, which is a valuable diagnostic tool for future terabit optical communication systems.","PeriodicalId":239122,"journal":{"name":"2016 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP)","volume":"47 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114041116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Kebort, S. Estrella, L. Johansson, M. Mashanovitch
{"title":"A photonic integrated circuit based optical mesh node for avionic WDM optical networks","authors":"D. Kebort, S. Estrella, L. Johansson, M. Mashanovitch","doi":"10.1109/AVFOP.2014.6999429","DOIUrl":"https://doi.org/10.1109/AVFOP.2014.6999429","url":null,"abstract":"Modern aircraft utilize electrical connections and signals for transport of all flight-critical information. Traditionally, all avionic subsystems were connected using point-to-point duplex links, which increase the weight and complexity of the aircraft wiring, as well as complicate upgrades with new systems and services. More recently, networking technologies like Avionics Full-Duplex Switched Ethernet (ADFX) have been developed and deployed on the latest commercial platforms offering the advantages of a networked environment while providing deterministic quality of service needed for safety-critical applications. At the same time, for bandwidth hungry sensing applications on board of avionic platforms, fiber optic point-to-point connections have been introduced, mainly using multimode optical signals and fibers. It is envisioned that with future needs for additional bandwidth on board aircraft, electrical networks and multimode optical links will be replaced with a unified single mode optical network, which will provide a future proof communication infrastructure for the life of the aircraft. This ultimate solution in terms of available bandwidth and flexibility will reduce the aircraft weight while reducing the operating costs and out-of-service time. Addition of new sensors or other equipment will be simplified through standard optical interfaces connected to the optical backbone network.","PeriodicalId":239122,"journal":{"name":"2016 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114933078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}