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Updated: Jun 17, 2026

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

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

Published on: December 18, 2015

[Laser emission].

J C Viénot¹, A Orszag, J Pasteur

¹Laboratoire d'Optique de la Faculté des Sciences de l'Université de Besançon, La Bouloie, France.

|January 6, 2010

Summary

This summary is machine-generated.

This study investigates wavelength shifts in O-switched lasers. Researchers detected a non-linear wavelength shift of 3 x 10(-3) Angstroms over 50 nanoseconds in solid-state laser emission.

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Area of Science:

Laser Physics
Spectroscopy
Optics

Context:

Solid-state laser emission spectral width is influenced by frequency shift and spike duration.
O-switched lasers are of particular interest due to their short pulse durations and steeper envelope slopes.
Understanding spectral characteristics is crucial for laser applications.

Purpose:

To quantify the importance of frequency shift versus spectral width in single laser pulses.
To measure time-resolved wavelength variations in O-switched lasers.
To analyze the temporal behavior of spectral shifts.

Summary:

Experiments utilized a high-speed rotating mirror camera with 3.2 nsec time resolution.
Streak photographs of Fabry-Pérot rings were analyzed to deduce spectral shifts.
A wavelength shift of approximately 3 x 10(-3) Angstroms was observed over 50 nanoseconds for a specific mode.
The detected wavelength shift exhibited a non-linear dependence on time.

Impact:

Provides experimental data on the dynamic spectral behavior of O-switched lasers.
Contributes to a deeper understanding of factors affecting laser spectral width.
Informs the design and application of lasers where precise spectral control is necessary.