Comparison of cross-gain modulation effect of Manchester-duobinary, RZ-DPSK, NRZ-DPSK, RZ, and NRZ modulation formats in SOAs

Zhaohui Li, Yi Dong, Chao Lu, Yang Jing Wen, Yixin Wang, Weisheng Hu, Tee Hiang Cheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


Conventional ON-OFF keyed signals, such as return-to-zero (RZ) and nonreturn-to-zero (NRZ) signals are susceptible to cross-gain modulation (XGM) in semiconductor optical amplifiers (SOAs) due to pattern effect. In this letter, XGM effect of Manchester -duobinary, RZ differential phase-shift keying (RZ-DPSK), NRZ-DPSK, RZ, and NRZ signals in SOAs were compared. The experimental results confirmed the reduction of crosstalk penalty in SOAs by using Manchester-duobinary signals.
Original languageEnglish
Pages (from-to)2680-2682
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number24
Publication statusPublished - 15 Dec 2006


  • Cross-gain modulation (XGM)
  • Manchester-duobinary
  • Modulation format
  • Semiconductor optical amplifier (SOA)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

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