5 Essential Elements For Laser Crystal
5 Essential Elements For Laser Crystal
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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。
Which geometry, dopant and doping concentration of the gain medium are most beneficial rely on a number of factors. The readily available pump supply (form of laser diode or lamp) along with the envisaged pumping arrangement are essential factors, but the fabric by itself also has some impact. By way of example, titanium–sapphire lasers must be pumped with large intensities, for which the shape of a transversely cooled rod, operated with rather smaller pump and laser beam diameter, is more correct 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。
活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。
g. a skinny disk. As Yet another case in point, Q-switched lasers attain the next population density inside the upper laser degree and so are hence a lot more sensitive to quenching outcomes and energy transfer processes; therefore, a decreased doping density is commonly appropriate for these equipment. For top-electricity lasers, reduce doping densities in many cases are used to limit the density of warmth generation, Even though thin-disk lasers function very more info best with extremely doped crystals. Many laser products do not get to the total functionality prospective simply because such facts have not been thoroughly worked out.
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。
It is obvious that unique purposes produce very different specifications on laser acquire media. For this reason, a broad range of various crystals are applied, and building the appropriate decision is essential for constructing lasers with the best possible functionality.
Distinctive crystalline resources are extremely unique concerning their hardness together with other Qualities, which decide with which methods And just how conveniently they can be Minimize and polished with top quality.
The medium must have a higher transparency (small absorption and scattering) from the wavelength regions of pump and laser radiation, and superior optical homogeneity. To some extent, this will depend on the quality of the fabric, based on information of the fabrication course of action.
With that concept, 1 doesn't require an additional saturable absorber crystal, to ensure that 1 may make extra compact Q-switched laser setups with reduced interior parasitic losses. Even so, unwanted side effects can also arise, including getting undesirable valence states of the included ions or energy transfers.
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