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Related Experiment Video

Updated: May 13, 2026

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Demonstration of a frequency spectral compression effect through an up-conversion interferometer.

Jean-Thomas Gomes¹, Ludovic Grossard, Damien Ceus

¹Xlim, Département Photonique, Université de Limoges, UMR CNRS 7252, 123 Av. Albert Thomas, 87060 Limoges CEDEX, France. jean-thomas.gomes@unilim.fr

|March 14, 2013

Summary

This summary is machine-generated.

This study demonstrates a novel interferometer using sum frequency generation (SFG) to achieve spectral compression. The experiment successfully transfers temporal coherence from infrared to visible light, achieving a compression factor over 4.

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Area of Science:

Non-linear optics
Quantum optics
Coherence analysis

Background:

Sum frequency generation (SFG) is a non-linear optical process.
Spectral domain applications require control over optical bandwidths.
Previous numerical studies suggested spectral compression in SFG.

Purpose of the Study:

To experimentally implement an interferometer utilizing SFG with a pump spectral doublet.
To investigate the spectral and coherence properties of the generated visible light.
To demonstrate and quantify the frequency spectral compression effect.

Main Methods:

Experimental setup of an interferometer employing SFG.
Utilizing a pump spectral doublet to power the SFG process.
Analysis of the converted visible signal's spectral and temporal coherence properties.

Main Results:

Experimental demonstration of frequency spectral compression from infrared to visible light.
Achieved a spectral compression factor greater than 4.
Verified the full retrieval of temporal coherence properties from the input infrared signal to the output visible signal.

Conclusions:

The developed interferometer enables SFG over an enlarged spectral domain.
The experimental results confirm the frequency spectral compression effect.
This work advances the understanding of coherence analysis through second-order non-linear processes.