Advanced modulation and coding technologies for ultra-high-speed optical communications

Lei Xu, Jianjun Yu, Dayou Qian, Ting Wang, Hussam Batshon, Ivan Djordjevic

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


We introduce two important technologies for development of next generation ultra-high-speed optical communications: (i) polarization multiplexing, phase modulation with digital coherent detection, and (ii) OFDM-based optical fiber transmission. In both schemes, digital signal processing plays a key role in recovering the signal and mitigating the detrimental effects from optical signal transmission. We further describe a novel three dimensional low-density parity check (LDPC) coded modulation scheme, including its principle and system performance.

Original languageEnglish (US)
Article number71360J
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2008
EventOptical Transmission, Switching, and Subsystems VI - Hangzhou, China
Duration: Oct 27 2008Oct 30 2008


  • Digital signal processing
  • LDPC
  • Optical communications
  • Phase shift keying

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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