Investigation of pulse pedestal and dynamic chirp formation on picosecond pulses after propagation through an SOA

A. M. Clarke, M. J. Connelly, P. Anandarajah, Liam P. Barry, D. Reid

Research output: Contribution to journalArticlepeer-review

Abstract

The authors investigate the propagation of picosecond pulses through semiconductor optical amplifiers using the measurement technique of frequency resolved optical gating. The work shows the generation of significant pulse pedestals and frequency chirp across the optical pulses, which initially have a duration of 2 ps. As the input peak power of the optical pulses is increased from 2.4 to 80 mW, the pulse pedestals increased by 20 dB and the chirp became significantly more nonlinear. The generated pedestals and the nonlinear output chirp may cause serious degradation in high-speed communications systems employing wavelength-division-multiplexing and optical time-division-multiplexing techniques.

Original languageEnglish
Pages (from-to)1800-1802
Number of pages3
JournalIEEE Photonics Technology Letters
Volume17
Issue number9
DOIs
Publication statusPublished - Sep 2005

Keywords

  • Frequency chirp
  • Optical communications
  • Optical pulse measurements
  • Semiconductor optical amplifier (SOA)

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