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The thermal conductivity of common double tungstates is on the get to 3–4 W/(K m) �?which is not bad as opposed with other laser crystals (While numerous moments lower than for YAG), and reasonably massive in comparison Along with the thermal conductivity of standard Eyeglasses.

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Consequently You can find small flexibility for optimizing the dispersion payment effect. Sub-200 fs pulses is often envisioned having a broader bandwidth seed input. Because of the dual-crystal configuration, the laser cavity provides a near diffraction constrained laser beam with M

In contrast, the seed laser may be amplified to in excess of one mJ beneath the orthogonal orientation configuration.

Amplified pulses with the Electrical power over 2.five mJ could be expected by making use of a greater pump ability for the regenerative amplifier and rendering it do the job on the saturation stage. The laser fluence of ~one J/cm2 on the dichroic mirrors is believed for being below the hurt threshold of superior-quality dielectric-coated mirrors.

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The blended acquire is complicated and may be measured below diverse pumping problems due to the quasi-a few-stage method actions with the Yb-doped achieve medium. The blueshift, with 1 peak from 1037 nm underneath the very same crystal placement orientation to 1035 nm beneath the orthogonal crystal placement orientation, could end result with click here the reabsorption losses at a long wavelength during the crystal wherever the laser polarization is parallel to its Nm -axis, producing the gain at 1035 nm higher than that at 1037 nm beneath orthogonal orientation.

The particular spectra have been reconstructed by correcting the measured spectra with the account with the filter transmission functions and to the sensitivity features with the spectrometers at the information write-up-processing phase. The spectral dynamics in Every sample was measured by high-quality tuning the pump pulse Vitality with a computer-managed attenuator which was built-in within the laser process. Thermal Strength meter EM (Ophir 3A-PF-twelve) was utilized to evaluate the SC Electrical power which was thereafter used to work out the spectral Strength density on the SC radiation. Each of the measurements have been executed without any translation from the sample with respect to your pump beam.

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-switched laser output beneath the two crystal placement configurations. The black line denotes the configuration with the crystals positioned in the same orientation, even though the red line is under the configuration of crystals placed in orthogonal orientation.

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