Transmission characteristics of unequally spaced WDM systems employing LD direct modulation

Shoko Ohteru, Noboru Takachio, Hiroshi Yasaka

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

The effects posed by relaxation oscillation and frequency chirping are investigated by calculating the transmission characteristics under LD direct modulation by using the split-step Fourier method. The wavelength division multiplexing (WDM) transmission system consists of eight transmitters that send out unequally spaced optical signals, all modulated by 2.5 Gbit/s NRZ pseudo-random signals. The transmission characteristics of a 320 km DSF with 80 km repeater spacing is simulated considering the change in effective zero-dispersion wavelength. Comparison of transmission characteristics in the cases of LD direct modulation and external modulation showed ignorable effect of relaxation oscillation.

Original languageEnglish
Pages12-13
Number of pages2
Publication statusPublished - 1997 Jan 1
Externally publishedYes
EventProceedings of the 1997 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim - Chiba, Jpn
Duration: 1997 Jul 141997 Jul 18

Other

OtherProceedings of the 1997 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim
CityChiba, Jpn
Period97/7/1497/7/18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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