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Related Experiment Videos

Electro-optical fiber modulation in a Sagnac interferometer.

O Tarasenko1, W Margulis

  • 1Acreo, Electrum 236, Stockholm, Sweden. oleksandr.tarasenko@acreo.se

Optics Letters
|June 5, 2007
PubMed
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Thermal poling induced the linear electro-optical effect in optical fibers. This enabled stable switching in a Sagnac loop, achieving a fast 40 ns rise time with low voltage signals.

Area of Science:

  • Optoelectronics
  • Materials Science
  • Photonics

Background:

  • The linear electro-optical effect is crucial for optical modulation.
  • Thermal poling is a technique used to induce nonlinear optical properties in materials.
  • Developing efficient electro-optical modulators is essential for optical communication systems.

Purpose of the Study:

  • To induce the linear electro-optical effect in optical fibers using thermal poling.
  • To construct and test a Sagnac all-spliced fiber loop incorporating an electro-optical fiber as a phase modulator.
  • To evaluate the performance of the electro-optical fiber phase modulator.

Main Methods:

  • Inducing the linear electro-optical effect in optical fibers via thermal poling.
  • Constructing a Sagnac all-spliced fiber loop.

Related Experiment Videos

  • Integrating an electro-optical fiber as a phase modulator within the loop.
  • Testing the switching stability and response time of the modulator.

    • Main Results:

    • Stable switching was achieved in the Sagnac fiber loop.
    • A fast rise time of approximately 40 nanoseconds was obtained.
    • Measurable optical response was generated by signals below 2 Volts.

    Conclusions:

    • Thermal poling effectively induces the linear electro-optical effect in optical fibers.
    • The developed Sagnac loop with an electro-optical fiber modulator demonstrates stable and fast optical switching.
    • The modulator shows high sensitivity, responding to low voltage signals.