Laser Physics

, Volume 18, Issue 11, pp 1362–1364 | Cite as

Gain and noise figure improvements in a shorter wavelength region of EDFA using a macrobending approach

  • S. A. Daud
  • S. D. Emami
  • K. S. Mohamed
  • N. M. Yusoff
  • L. Aminudin
  • H. A. Abdul-Rashid
  • S. W. Harun
  • H. Ahmad
  • M. R. Mokhtar
  • Z. Yusoff
  • F. A. Rahman
Regular Papers Fiber Optics

Abstract

Gain and noise figure improvements are demonstrated in a shorter wavelength region of a double-pass EDFA using a macrobending approach. The EDF is wound in a small radius to suppress the amplified spontaneous emission at the longer wavelength in order to achieve a high amplification in the shorter wavelength. Gain enhancements of about 12–14 dB are obtained with macrobending at the wavelength region between 1480 and 1530 nm. The macrobending also reduces the noise figure of the EDFA at wavelengths shorter than 1525 nm with a maximum improvement of 25 dB.

PACS numbers

42.60.Da 42.81.-i 42.81.Wg 

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Copyright information

© Pleiades Publishing, Ltd. 2008

Authors and Affiliations

  • S. A. Daud
    • 1
  • S. D. Emami
    • 2
  • K. S. Mohamed
    • 1
  • N. M. Yusoff
    • 1
  • L. Aminudin
    • 1
  • H. A. Abdul-Rashid
    • 1
  • S. W. Harun
    • 2
  • H. Ahmad
    • 2
  • M. R. Mokhtar
    • 1
  • Z. Yusoff
    • 1
  • F. A. Rahman
    • 1
  1. 1.Center for Photonics Research and ApplicationsMultimedia UniversityCyberjayaMalaysia
  2. 2.Photonics Research CenterUniversiti MalayaKuala LumpurMalaysia

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