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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Broadly tunable oscillator-amplifier system using lithium (F(2)(+))A centers in KCl.
Researchers developed a novel oscillator-amplifier system using KCl:Li crystals with (F(2)(+))(A) centers. This laser system achieved high output energies and peak powers, tunable across a significant infrared spectral range.
Area of Science:
- Solid-state laser physics
- Materials science
Background:
- Development of tunable laser sources is crucial for various scientific applications.
- Color centers in alkali halide crystals offer potential for laser operation in the infrared spectrum.
Purpose of the Study:
- To construct and characterize an oscillator-amplifier laser system utilizing (F(2)(+))(A) color centers in KCl:Li crystals.
- To demonstrate tunable laser output in the mid-infrared region.
Main Methods:
- An oscillator-amplifier system was built using KCl:Li crystals doped with (F(2)(+))(A) centers.
- A 1.41-microm laser pump was generated via Raman shifting of a 1.06-microm Nd:YAG laser line in liquid nitrogen.
- The system's performance was evaluated in terms of output energy, peak power, and tunability.
Main Results:
- The laser system achieved output energies of 2.3 mJ.
- Peak output powers exceeded 0.4 MW.
- Continuous tuning was demonstrated across the 2.0-2.4-microm spectral wavelength range.
Conclusions:
- The developed oscillator-amplifier system based on (F(2)(+))(A) centers in KCl:Li is a viable source for tunable mid-infrared laser generation.
- The system exhibits promising performance metrics for potential applications in spectroscopy and other fields requiring tunable laser light.
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