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Related Experiment Video

Updated: Mar 3, 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

8.9K

Wavelength division multiplexed light source monolithically integrated on a silicon photonics platform.

Purnawirman, Nanxi Li, E Salih Magden

    Optics Letters
    |April 29, 2017
    PubMed
    Summary

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    We developed a silicon photonics light source using cascaded erbium-doped aluminum oxide distributed feedback lasers. This integrated device provides multiple wavelengths without tuning, advancing silicon photonic integrated circuits.

    Area of Science:

    • Photonics
    • Materials Science
    • Integrated Optics

    Background:

    • Silicon photonics requires efficient, integrated light sources for various applications.
    • Wavelength Division Multiplexing (WDM) is crucial for increasing data capacity in optical communication systems.
    • Previous integrated light sources often require complex tuning mechanisms.

    Purpose of the Study:

    • To demonstrate a monolithic, wavelength division multiplexed light source for silicon photonics.
    • To achieve simultaneous operation of multiple lasers without active tuning.
    • To characterize the performance and thermal properties of the integrated laser source.

    Main Methods:

    • Monolithic integration of four erbium-doped aluminum oxide (Al2O3:Er3+) distributed feedback (DFB) lasers in a cascade.

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  • Uniform spacing of emission wavelengths for WDM compatibility.
  • Characterization of output power, side mode suppression ratio (SMSR), and temperature-dependent wavelength shift (dλ/dT).

    • Main Results:

    • Successfully cascaded four DFB lasers operating simultaneously with uniformly spaced wavelengths.
    • Achieved a total output power of -10.9 dBm.
    • Obtained an average side mode suppression ratio of 38.1±2.5 dB.
    • Observed a uniform temperature-dependent wavelength shift of 0.02 nm/°C across all lasers.

    Conclusions:

    • The cascaded Al2O3:Er3+ DFB laser array represents a significant advancement in monolithic WDM light sources for silicon photonics.
    • The demonstrated device offers a compact, tunable-free solution for integrated photonic systems.
    • The uniform thermal behavior simplifies system design and operation.