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Related Experiment Videos

Proposed silicon wire interleaver structure.

Junfeng Song1, Q Fang, S H Tao

  • 1Institute of Microelectronics, A*STAR, 11 Science Park Road, Science Park II, Singapore. songjf@ime.a-star.edu.sg

Optics Express
|June 12, 2008
PubMed
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A novel Ring-resonator Mach-Zehnder interferometer (RR-MZI) optical interleaver was fabricated on silicon-on-insulator wafers. This device exhibits a flat-top spectral response, making it suitable for advanced optical communication systems.

Area of Science:

  • Photonics and Optical Engineering
  • Integrated Optics
  • Nanofabrication

Background:

  • Optical interleavers are crucial components in wavelength-division multiplexing (WDM) systems.
  • Traditional interleavers face challenges in achieving flat-top spectral responses and miniaturization.
  • Ring-resonator based devices offer potential for compact and high-performance optical functions.

Purpose of the Study:

  • To propose and fabricate a novel Ring-resonator Mach-Zehnder interferometer (RR-MZI) optical interleaver.
  • To demonstrate a compact and efficient optical interleaver using silicon photonics technology.
  • To characterize the performance of the fabricated RR-MZI interleaver.

Main Methods:

  • Design and simulation of an RR-MZI structure using silicon wires on silicon-on-insulator (SOI) wafers.

Related Experiment Videos

  • Fabrication of the optical interleaver with precise 300 nm x 300 nm silicon wire dimensions.
  • Experimental characterization of the device's spectral response, free spectral range (FSR), insertion loss (IL), and polarization dependent loss (PDL).

    • Main Results:

    • The fabricated RR-MZI interleaver exhibited a desirable flat-top spectral response.
    • A measured free spectral range (FSR) of approximately 20 nm was achieved.
    • The device demonstrated an insertion loss (IL) of approximately -10 dB and polarization dependent loss (PDL) <5 dB.
    • Experimental results showed good agreement with simulation predictions.

    Conclusions:

    • The proposed RR-MZI structure is a viable approach for creating compact and high-performance optical interleavers.
    • The demonstrated device performance, including flat-top response and low loss, is promising for WDM applications.
    • Silicon photonics technology enables the fabrication of advanced optical components like the RR-MZI interleaver.