Considerations To Know About Laser Crystal
Considerations To Know About Laser Crystal
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The most typical laser-active uncommon earth ions and host media together with some standard emission wavelengths are shown in the subsequent desk:
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
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。
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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。
A significant area top quality is not surprisingly important. Specifications of surface area flatness in many cases are much better than . This allows to avoid each scattering losses and wavefront distortions which could degrade the laser's beam excellent. On top of that, scratch and dig specifications
g. a skinny disk. As Yet another example, Q-switched lasers access a higher populace density during the upper laser degree and so are therefore a lot more delicate to quenching outcomes and Electricity transfer processes; thus, a lower doping density is often appropriate for these units. For prime-electric power lasers, lessen doping densities tend to be used to limit the density of heat generation, Even though thin-disk lasers function very best with highly doped crystals. Numerous laser items don't get to the whole effectiveness likely due to the fact this sort of details haven't been effectively labored out.
The host crystal is way more than just a means to fix the laser-Energetic ions at sure positions in space. A number of Homes with the host product are important:
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。
For quasi-three-amount laser achieve media or maybe 3-degree acquire media, a person typically must Restrict the length to a price that is far too short for successful pump absorption, as reabsorption effects would usually spoil the efficiency. For facet pumping, additional issues occur into play; Aside from efficient pump absorption, it is necessary to more info get an appropriate spatial form with the gain profile.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 components laser crystal crystal expansion optical performance uncommon earth ions transition team ions
The medium ought to have a significant transparency (lower absorption and scattering) within the wavelength locations of pump and laser radiation, and good optical homogeneity. To some extent, this relies on the caliber of the fabric, determined by information from the fabrication course of action.
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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。