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All-Optical Synchronization of Remote Optomechanical Systems.

Jin Li1, Zhong-Hao Zhou1, Shuai Wan1

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Researchers achieved all-optical synchronization between two distinct optomechanical systems, a microsphere and a microdisk, over a 5-km fiber. This demonstrates a key step towards long-distance synchronization networks using microresonators.

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Area of Science:

  • Optomechanics
  • Nonlinear Dynamics
  • Photonics

Background:

  • Synchronization of remote mechanical oscillators is crucial for scientific and technological applications.
  • Challenges include aligning frequencies and achieving strong nonlinear interaction for long-distance transmission.

Purpose of the Study:

  • To experimentally demonstrate all-optical synchronization between two different optomechanical systems.
  • To investigate the feasibility of long-distance synchronization using microresonators.

Main Methods:

  • Utilized two distinct optomechanical systems: a microsphere and a microdisk.
  • Transmitted mechanical oscillation information via a pump laser through a 5-km single-mode fiber.
  • Employed fine-tuning of optical and mechanical frequencies for synchronization.

Main Results:

  • Successfully achieved injection locking of the microdisk's oscillation to the microsphere's.
  • Established a synchronized phase relation between the two optomechanical systems.
  • Demonstrated robust synchronization over a 5-km fiber link.

Conclusions:

  • The study successfully realized all-optical synchronization between a microsphere and a microdisk.
  • This work advances the development of long-distance synchronization networks employing optomechanical microresonators.