Traceback equalization for non-uniformly synthesized optical QAM signals

Takahide Sakamoto, Guo Wei Lu, Tetsuya Kawanishi

Research output: Contribution to conferencePaper

Abstract

Optical quadrature-amplitude modulation (QAM) enables high-spectral- efficiency transmission, where we can generate high-order optical multilevel signals, combined from multiple low-order multilevel signals (like binary streams). This signal combining approach is useful because it is difficult to directly generate multilevel signals at high symbol rate beyond ∼10 Gbaud. Electrical combining is one of the possible ways, where electrical multilevel signals are generated combining binary sequences first, and then IQ modulator is driven with the signals. Another one is optical synthesis approach, where optical signals are combined in optical domain by using integrated serial or parallel modulators to create higher order multilevel signals [1][2].

Original languageEnglish
DOIs
Publication statusPublished - 2013 Jan 1
Event2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 - Munich, Germany
Duration: 2013 May 122013 May 16

Other

Other2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013
CountryGermany
CityMunich
Period13/5/1213/5/16

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Sakamoto, T., Lu, G. W., & Kawanishi, T. (2013). Traceback equalization for non-uniformly synthesized optical QAM signals. Paper presented at 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013, Munich, Germany. https://doi.org/10.1109/CLEOE-IQEC.2013.6801251