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Related Experiment Video

Updated: Oct 12, 2025

Fabrication and Testing of Microfluidic Optomechanical Oscillators

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Attosecond-precision balanced linear-optics timing detector.

Tong Wang, Qun Ren, Kemal Şafak

|November 23, 2021

Summary

This summary is machine-generated.

A novel acousto-optic timing detector offers superior performance, achieving a low noise floor and minimal timing jitter. This method is robust against dispersion and noise, enabling applications in fiber links and quantum metrology.

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Area of Science:

Optics and Photonics
Metrology

Background:

Accurate timing detection is crucial for advanced applications.
Existing methods often suffer from dispersion and noise interference.

Purpose of the Study:

To demonstrate a new timing detection method using acousto-optic modulation.
To evaluate the performance and potential applications of this novel detector.

Main Methods:

Utilized acousto-optic modulation for timing detection.
Employed a balanced configuration to suppress noise.
Measured timing noise floor and integrated timing jitter.

Main Results:

Achieved a timing noise floor of ~1×10^-10 fs²/Hz, near the shot noise limit.
Measured integrated timing jitter of 26 as over [1 Hz, 1 MHz].
Demonstrated significant noise reduction compared to traditional methods (BOC).

Conclusions:

The acousto-optic timing detector is immune to dispersion and suppresses environmental/laser noise.
This technology shows promise for ultra-long fiber link stabilization, quantum metrology, and weak signal timing control.