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Article | REF: E4022 V1

Multi-physic simulation in the laser sources

Author: Christophe FERAL

Publication date: March 10, 2021 | Lire en français

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3. Detailed examples

3.1 Example 1: improving laser rod cooling

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3.1.1 Presentation of the problem

A 4 mm x 20 mm holmium-YAG crystal rod is surrounded by a hollow plastic shell, in which water at 20°C circulates (figure 14 ). The shell is mechanically held in place by the sides in the mid-plane. A continuous 120 W laser, at a wavelength of 2 μm, pumps the rod over a diameter of 410 μm for a small-signal gain of 7. More than 80% of the...

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