Lyot filter based multiwavelength fiber ring laser actively mode-locked at 10 GHz using an electroabsorption modulator

Colm O'Riordan, Michael J. Connelly, Prince M. Anandarajah, Robert Maher, Liam P. Barry

Research output: Contribution to journalArticlepeer-review

Abstract

A multiwavelength fiber ring laser comprising of a Lyot filter and hybrid gain medium is presented. A wavelength channel spacing of 100 GHz is achieved by appropriate tuning of the Lyot filter length. Four wavelength channels are simultaneously mode-locked at 10 GHz using an electroabsorption modulator. We highlight how the intra-cavity modulator can affect the stability of the mode-locked laser spectrum when used in conjunction with a Lyot filter. We show that, due its reduced polarization sensitivity, an electroabsorption modulator significantly improves the stability of the mode-locked laser spectrum when compared to using a Mach-Zehnder modulator.

Original languageEnglish
Pages (from-to)3538-3541
Number of pages4
JournalOptics Communications
Volume281
Issue number13
DOIs
Publication statusPublished - 1 Jul 2008

Keywords

  • Electroabsorption modulator
  • Lyot filter
  • Mach-Zehnder modulator
  • Mode-locked lasers
  • Wavelength division multiplexing

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