Linear dual electroabsorption modulator for analog optical transmission

Gyu Woong Lee, Han Sang-Kook

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


An all-optical linearization technique is proposed for electroabsorption optical modulators (EAM). The scheme provides a relatively simple process of linearization by adding a sub-EAM. By including the sub-EAM with different lengths, DC bias, and bandgap wavelengths, the nonlinear components of the main EAM were optically compensated. The third order intermodulation products produced by the nonlinear transfer curve of the main modulator were reduced by as much as 30 dB. Through the suppression of the third-order intermodulation products, subsequent enhancement of a suboctave spurious free dynamic range of about 20 dB was achieved.

Original languageEnglish
Pages (from-to)369-373
Number of pages5
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - 1999

All Science Journal Classification (ASJC) codes

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


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