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Efficient Erbium-doped waveguide amplifier insensitive to power fluctuations.

Karin Ennser1, Stefano Taccheo, Tomasz Rogowski

  • 1CNIT Nat'l Laboratory of Photonic Networks, Italy. karin.ennser@polimi.it

Optics Express
|June 17, 2009
PubMed
Summary

We developed a stable erbium-doped waveguide amplifier using optical gain clamping. This technology ensures consistent performance in transparent WDM networks, even with noise or laser leakage.

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Area of Science:

  • Photonics and Optical Engineering
  • Telecommunications Technology

Background:

  • Erbium-doped waveguide amplifiers (EDWAs) are crucial for optical amplification.
  • Maintaining stable output power and gain flatness is essential for network performance.
  • Existing amplifiers can be sensitive to output power variations and network transients.

Purpose of the Study:

  • To present an efficient erbium-doped waveguide amplifier design.
  • To demonstrate insensitivity to output power variations using optical gain clamping.
  • To validate suitability for transparent Wavelength Division Multiplexing (WDM) ring networks.

Main Methods:

  • Implementation of an optical gain clamping technique in an erbium-doped waveguide amplifier.
  • Characterization of amplifier performance, including output power stability and gain flatness across the C-band.

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  • Testing the amplifier's robustness in simulated transparent WDM ring network conditions.

    • Main Results:

    • Achieved an efficient erbium-doped waveguide amplifier.
    • Demonstrated insensitivity to output power variation through optical gain clamping.
    • Confirmed output power suitable for metro applications and gain flatness over the full C-band.
    • Validated robustness against amplified spontaneous emission noise and laser power leakage.

    Conclusions:

    • The developed EDWA technology is robust and suitable for next-generation reconfigurable WDM ring networks.
    • Optical gain clamping effectively ensures stable device performance under transient conditions.
    • This amplifier technology supports transparent WDM networks by mitigating noise and leakage impacts.