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激光晶体中活性离子的作用是什么？ 活性离子在激光晶体中负责通过受激发射产生激光光线。

Which geometry, dopant and doping concentration of the acquire medium are most advantageous depend on several factors. The accessible pump source (type of laser diode or lamp) and the envisaged pumping arrangement are crucial components, but the material itself also has some impact. Such as, titanium–sapphire lasers should be pumped with large intensities, for which the shape of a transversely cooled rod, operated with fairly compact pump and laser beam diameter, is much more appropriate than e.

晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。

激光晶体的损伤阈值与其能承受的最大光强有关，而不会遭受物理或结构损伤。高损伤阈值对于确保高功率激光应用的耐久性和长寿命至关重要。

The utmost possible doping focus can count strongly about the host material and its fabrication strategy.

激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。

量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。

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主体材料中活性离子掺杂物的数量是关键因素。它影响了激光的效率和性能。过低的浓度可能导致低输出，过高的浓度可能导致消光效应，降低晶体的效率。

In 2017, we made the globe’s largest Ti∶sapphire crystal (Φ235 mm), which supported The ten PW laser output of Shanghai Superintense Ultrafast Laser Facility. The event read more of Yb and Tm doped GdScO3 laser crystals with very extensive emission spectra drives the event of laser diode pumped ultrafast solid-state lasers. With the increase in pulse Electricity, peak energy, and repetition charge of strong-condition lasers, laser crystals will acquire in direction of more substantial measurements, larger crystal excellent, and controllable essential general performance.

It might be oriented for in close proximity to perpendicular incidence of your laser beam, or at Brewster's angle. It can be fixed in some solid mount which also acts as a heat sink. More substantial crystals tend to be employed for aspect pumping e.g. with substantial-electricity diode bars.

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