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Self-Injection Locking Dynamics with Raman Actions in Aluminum Nitride Microresonators.

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This summary is machine-generated.

This study demonstrates nonlinear self-injection locking (SIL) in aluminum nitride (AlN) microcavities, enabling stimulated Raman lasers (SRLs) and microcombs for advanced photonic integrated circuits.

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Area of Science:

  • Photonics
  • Materials Science
  • Nonlinear Optics

Background:

  • Self-injection locking (SIL) purifies laser noise and enables nonlinear optical phenomena.
  • Advancing integrated photonics requires nonlinear SIL in novel material platforms.

Purpose of the Study:

  • Demonstrate nonlinear SIL in AlN microcavities.
  • Investigate stimulated Raman lasers (SRLs) and microcomb generation.
  • Explore AlN as a platform for nonlinear integrated photonics.

Main Methods:

  • Utilized AlN microcavities for nonlinear SIL.
  • Achieved SRL emission and microcomb generation.
  • Analyzed Kerr effect-mediated stimulated emissions and thermal dynamics.

Main Results:

  • Demonstrated SRL emission with >10 mW output power and <70 Hz linewidth at 1750 nm.
  • Observed Kerr effect-induced second-Stokes and anti-Stokes emissions.
  • Enabled GHz-level frequency sweeps via multi-timescale thermal relaxations.
  • Generated a Stokes platicon microcomb state with coemission.

Conclusions:

  • AlN microcavities support nonlinear SIL, SRLs, and microcombs.
  • Hybrid-integrated crystalline microresonators are versatile for nonlinear photon-phonon interactions.