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Multichannel dispersion compensation using a silicon waveguide-based optical phase conjugator.

Simon Ayotte1, Haisheng Rong, Shengbo Xu

  • 1Intel Corporation, 2200 Mission College Boulevard, SC12-326, Santa Clara, CA 95054, USA.

Optics Letters
|August 19, 2007
PubMed
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We demonstrate dispersion compensation with a silicon optical phase conjugator, enabling simultaneous transmission of four dense wavelength division multiplexing (DWDM) channels over 320 km of fiber with minimal signal degradation.

Area of Science:

  • Photonics and Optical Communications
  • Materials Science (Silicon Photonics)

Background:

  • Optical fiber communication systems suffer from chromatic dispersion, limiting transmission distance and data rates.
  • Dense Wavelength Division Multiplexing (DWDM) increases fiber capacity but exacerbates dispersion issues.
  • Optical phase conjugation (OPC) is a technique to compensate for fiber nonlinearities and dispersion.

Purpose of the Study:

  • To experimentally demonstrate dispersion compensation using a novel silicon-based optical phase conjugator.
  • To evaluate the performance of the silicon OPC in a realistic fiber optic transmission system.
  • To assess the feasibility of using silicon photonics for advanced optical signal processing.

Main Methods:

  • Fabrication and characterization of a silicon-based optical phase conjugator.

Related Experiment Videos

  • Experimental setup involving transmission of four DWDM channels over 320 km of standard optical fiber.
  • Measurement of bit error rate (BER) and power penalty to quantify compensation effectiveness.

    • Main Results:

    • Successful simultaneous transmission of four DWDM channels at 10 Gbits/s over 320 km of standard fiber.
    • Achieved dispersion compensation using the silicon-based optical phase conjugator.
    • Measured power penalty at a bit error rate of 10(-9) was less than 0.3 dB, indicating effective compensation.

    Conclusions:

    • Silicon-based optical phase conjugation is a viable technology for dispersion compensation in DWDM systems.
    • The demonstrated system shows potential for extending the reach and capacity of optical networks.
    • This work highlights the advancement of silicon photonics for high-speed optical communication applications.