100-Gb/s DQPSK transmission experiment without OTDM for 100G ethernet transport

Masahiro Daikoku*, Itsuro Morita, Hidenori Taga, Hideaki Tanaka, Tetsuya Kawanishi, Takahide Sakamoto, Tetsuya Miyazaki, Takahisa Fujita

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)


In order to realize a future 100-Gb Ethernet (100 GbE) transport, 100-Gb/ s transmission without 100-GHz-class electronics and optical time-division-multiplexing technique was demonstrated. By using a differential quadrature phase-shift-keying (DQPSK) modulation format and commercially available electronics, 2- and 50-km transmissions of 100-Gb/ s signal were successfully achieved over a standard single mode fiber. The receiver sensitivity, chromatic dispersion, and differential group delay tolerances of 100-Gb/s DQPSK signal were also evaluated. Through these evaluations, the possibility of DQPSK modulation for future 100-GbE transport is verified.

Original languageEnglish
Pages (from-to)139-145
Number of pages7
JournalJournal of Lightwave Technology
Issue number1
Publication statusPublished - 2007 Jan
Externally publishedYes


  • 100-gigabit Ethernet (100 GbE)
  • Differential quadrature phase-shift-keying (DQPSK)
  • Return to zero (RZ)-DQPSK

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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