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Asynchronous optical sampling with arbitrary detuning between laser repetition rates.

Laura Antonucci1, Xavier Solinas, Adeline Bonvalet

  • 1Laboratoire d’Optique et Biosciences, Ecole Polytechnique, Centre National de la Recherche Scientifique, 91128 Palaiseau, France.

Optics Express
|October 6, 2012
PubMed
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This study introduces a novel asynchronous optical sampling method using free-running lasers, enabling precise pulse delay determination. The technique achieves sub-400 fs resolution over a 13 ns scan, adaptable to existing laser systems.

Area of Science:

  • Optics and Photonics
  • Laser Technology
  • High-Speed Measurement

Background:

  • Asynchronous optical sampling (AOS) is a powerful technique for high-speed measurements.
  • Conventional AOS methods often require precisely synchronized or fixed repetition rates between lasers.
  • Existing laser systems may not be easily adaptable to specialized AOS setups.

Purpose of the Study:

  • To present a new method for asynchronous optical sampling.
  • To overcome the limitations of fixed repetition rate requirements in AOS.
  • To enable straightforward implementation on existing laser systems.

Main Methods:

  • Developed a method based on free-running lasers, eliminating repetition rate constraints.
  • Employed a posteriori determination of the time delay between laser pulse pairs.

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Related Experiment Videos

Last Updated: May 18, 2026

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07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope
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Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

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  • Utilized a fiber-based setup and a specific acquisition procedure.

    • Main Results:

    • Demonstrated a temporal resolution better than 400 femtoseconds (fs).
    • Achieved this resolution over a total delay scan range of 13 nanoseconds (ns).
    • Validated the adaptability to existing laser infrastructure.

    Conclusions:

    • The presented AOS method offers advantages over conventional techniques.
    • It provides a flexible and accessible approach for high-resolution optical sampling.
    • The technique is readily implementable on existing fiber-based laser systems.