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Related Experiment Video

Updated: Jun 5, 2026

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Optical referencing technique with CW lasers as intermediate oscillators for continuous full delay range frequency

Jean-Daniel Deschênes1, Philippe Giaccarri, Jérôme Genest

  • 1Centre d’Optique, Photonique et Laser, 2375 rue de la Terrasse, Université Laval, Québec, Québec, Canada.

Optics Express
|December 18, 2010
PubMed
Summary
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A new referencing technique for frequency comb spectrometry (cFTS) now accesses the full delay range, overcoming previous limitations. This advancement enables high-resolution, full-spectral measurements in a single shot.

Area of Science:

  • Optical Spectroscopy
  • Frequency Comb Technology
  • Laser Physics

Background:

  • Frequency comb spectrometry (cFTS) is a powerful technique for high-resolution spectral measurements.
  • Previous cFTS methods were limited by the achievable delay range, restricting spectral resolution and scanning capabilities.
  • Passive optical filters previously limited the full delay range accessibility in cFTS.

Purpose of the Study:

  • To introduce and demonstrate a novel referencing technique for frequency comb spectrometry (cFTS).
  • To overcome the principal limitation of the delay range in prior cFTS methods.
  • To achieve high spectral resolution and continuous scanning for complex reflectometry.

Main Methods:

  • Development of a new referencing technique for cFTS utilizing intermediate laser oscillators.

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Related Experiment Videos

Last Updated: Jun 5, 2026

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

  • Overcoming the delay range limitation inherent in passive optical filter-based methods.
  • Demonstration of the technique with a high-resolution cFTS system.

    • Main Results:

    • Achieved 100 MHz spectral resolution (0.003 cm(-1)) with a signal-to-noise ratio of 440 in a 2-second measurement.
    • Generated a spectrum with 105,000 resolved spectral elements, each corresponding to a single pair of optical modes.
    • Successfully performed the first cFTS measurement over the full spectral range in a single shot with resolved individual modes at full resolution.

    Conclusions:

    • The new referencing technique significantly advances frequency comb spectrometry (cFTS).
    • It enables access to the full delay range, maximizing spectral resolution and improving complex reflectometry.
    • This represents a breakthrough in single-shot, full-spectral cFTS measurements with resolved individual modes.