Detailed Notes on Laser Crystal

Detailed Notes on Laser Crystal

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Laser crystals are optical crystals �?usually solitary crystals (monocrystalline optical supplies) �?that are made use of as achieve media for sound-state lasers. In most cases, they are doped with possibly trivalent unusual earth ions or changeover steel ions.

Furthermore, some versatility is shed in experiments if 1 can not try out absorbers with distinctive thickness or doping concentration, for example, without having exchanging the laser crystal alone.

The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and likewise the upper-condition life span.

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。

g. a thin disk. As Yet another illustration, Q-switched lasers arrive at a better population density inside the upper laser degree and they are thus extra sensitive to quenching consequences and Strength transfer processes; therefore, a decreased doping density is often appropriate for these equipment. For high-electric power lasers, reduced doping densities tend to be accustomed to Restrict the density of heat technology, Though slim-disk lasers work best with very doped crystals. Numerous laser goods tend not to get to the complete effectiveness possible because this kind of aspects haven't been properly worked out.

Laser modeling and simulation can be utilized to reliably identify the ideal crystal Proportions, doping density and possibly values of extra parameters.

热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。

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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。

The medium must have a large transparency (reduced absorption and scattering) inside the wavelength areas of pump and laser radiation, and very good optical homogeneity. To some extent, get more info this will depend on the quality of the fabric, based on details on the fabrication procedure.

With That idea, just one will not need an additional saturable absorber crystal, to ensure that one particular may make far more compact Q-switched laser setups with reduce internal parasitic losses. On the other hand, unwanted Negative effects may also arise, for example acquiring unwelcome valence states of your associated ions or Electricity transfers.

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。