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Related Experiment Video

Updated: Mar 21, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

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Silicon micro-ring tunable laser for coherent optical communication.

Shiyu Li, Di Zhang, Jianyi Zhao

    Optics Express
    |May 4, 2016
    PubMed
    Summary
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    A new silicon micro-ring resonator laser offers tunable C-band operation. This compact device achieves over 17 nm tuning range and narrow linewidth, suitable for coherent optical systems.

    Area of Science:

    • Photonics and Optical Engineering
    • Semiconductor Device Physics
    • Integrated Optics

    Background:

    • External cavity lasers are crucial for tunable light sources in optical communications.
    • Silicon photonics offers a promising platform for integrated photonic devices due to its mature fabrication processes and high refractive index.
    • Micro-ring resonators provide wavelength-selective filtering and compact device footprints.

    Purpose of the Study:

    • To demonstrate a compact external cavity tunable laser using a silicon hybrid micro-ring resonator.
    • To develop and apply a theoretical model for analyzing the laser's wavelength tuning performance.
    • To evaluate the device's performance metrics for potential use in coherent transmission systems.

    Main Methods:

    • Fabrication of a silicon hybrid micro-ring resonator.

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  • Simulation of the gain section using a multimode rate equation model.
  • Modeling of passive sections using the frequency domain method.
  • Experimental characterization of output power, linewidth, tuning range, and side-mode suppression ratio (SMSR).

    • Main Results:

    • Achieved an output power of 29 mW.
    • Demonstrated a linewidth below 150 kHz.
    • Obtained a tuning range exceeding 17 nm within the C-band.
    • Measured a side-mode-suppression-ratio (SMSR) of 60 dB.

    Conclusions:

    • The demonstrated silicon hybrid micro-ring resonator laser is a compact and effective tunable light source.
    • The device exhibits performance comparable to commercial narrow linewidth lasers.
    • This technology holds potential for advanced coherent optical transmission systems.