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Related Experiment Videos

Athermal silica-based interferometer-type planar light-wave circuits realized by a multicore fabrication method.

Liping Zuo1, Hisanori Suzuki, Kenneth Kong

  • 1Hoya Photonics Singapore Pte Ltd., 83 Science Park Drive, #03-01/02, The Curie, Singapore Science Park I, 118258, Singapore.

Optics Letters
|July 3, 2003
PubMed
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A new multicore fabrication method creates athermal silica-based planar light-wave circuits. This advancement enables stable Mach-Zehnder interferometer filters with minimal wavelength shift across a wide temperature range.

Area of Science:

  • Photonics and Optical Engineering
  • Materials Science

Background:

  • Planar light-wave circuits (PLCs) are crucial for optical communication.
  • Temperature-dependent wavelength shifts in conventional PLCs limit device performance.
  • Athermal devices are needed for stable optical signal processing.

Purpose of the Study:

  • To develop a novel fabrication method for athermal silica-based interferometer-type planar light-wave circuits.
  • To achieve stable device performance over a wide temperature range.
  • To demonstrate the versatility of the new fabrication technique.

Main Methods:

  • Utilized a multicore fabrication method involving inductively coupled chemical-vapor deposition and polishing.
  • Employed reactive ion etching to create trench-type waveguide patterns on silica substrates.

Related Experiment Videos

  • Integrated two core materials (10GeO2-90SiO2 and 8GeO2-5B2O3-87SiO2) with distinct thermal-optic properties.

    • Main Results:

    • Achieved athermal characteristics with a wavelength temperature dependence of less than 0.5 pm/°C.
    • Demonstrated stable operation for Mach-Zehnder interferometer filter devices at 1.55-microm wavelength.
    • Verified performance across a temperature range of -20 to 80 °C.

    Conclusions:

    • The developed multicore fabrication method successfully produced athermal silica-based planar light-wave circuits.
    • The technique offers a viable solution for creating temperature-stable optical devices.
    • The method is adaptable for fabricating various other functional optical devices.