Investigation of noise suppression, pulse intensity and chirp of an actively mode-locked semiconductor fiber ring laser

Ivan Evans, Colm O'Riordan, Michael J. Connelly, Liam P. Barry, Aisling M. Clarke, Prince M. Anandarajah

Research output: Contribution to journalArticlepeer-review

Abstract

An actively mode-locked fiber ring laser that utilizes an EDFA and semiconductor optical amplifier (SOA) is presented. The SOA enhances noise suppression. Active mode-locking was demonstrated at repetition rates up to 20 GHz. The effects of intra-cavity power and SOA current on noise suppression are studied for two types of commercially available SOA. The frequency resolved optical gating technique is used to characterize the output pulse stream intensity and frequency chirp.

Original languageEnglish
Pages (from-to)142-146
Number of pages5
JournalOptics Communications
Volume280
Issue number1
DOIs
Publication statusPublished - 1 Dec 2007

Keywords

  • Frequency resolved optical gating
  • Mode-locking
  • Optical pulse measurements
  • Ring laser
  • Semiconductor optical amplifier

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