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Updated: Jun 19, 2026
09:38
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
Published on: December 18, 2015
Broadly tunable mid-infrared intracavity difference-frequency laser.
Optics Letters
|October 28, 2009
Summary
Researchers created tunable laser radiation from 3.1 to 4.4 micrometers using a Ti:sapphire laser and a Nd:YAG laser. This new method achieved 300 microW output power, enabling new applications in laser technology.
Area of Science:
- Laser physics
- Nonlinear optics
Background:
- Tunable lasers are crucial for various spectroscopic applications.
- Existing tunable laser systems often have limitations in wavelength range or output power.
Purpose of the Study:
- To develop a novel method for generating continuously tunable laser radiation.
- To achieve diffraction-limited laser output in the mid-infrared region.
Main Methods:
- Mixing the output of a Ti:sapphire laser with the intracavity field of a single-frequency, 1.064-micrometer Nd:YAG ring laser.
- Utilizing nonlinear optical processes to achieve wavelength tuning.
Main Results:
- Generated laser radiation continuously tunable from 3.1 to 4.4 micrometers.
- Achieved a peak output power of 300 microwatts near 3.2 micrometers.
- Observed diffraction-limited beam quality.
Conclusions:
- The demonstrated technique provides a versatile and efficient source of tunable mid-infrared laser radiation.
- This method has potential applications in spectroscopy, sensing, and materials processing.
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