Getting My Laser Crystal To Work

Getting My Laser Crystal To Work

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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 focus of the gain medium are most advantageous rely on various variables. The readily available pump resource (form of laser diode or lamp) as well as envisaged pumping arrangement are crucial factors, but the fabric itself also has some influence. For example, titanium–sapphire lasers ought to be pumped with higher intensities, for which the form of a transversely cooled rod, operated with relatively smaller pump and laser beam diameter, is a lot more acceptable than e.

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A significant surface quality is obviously significant. Specifications of area flatness in many cases are better than . This allows in order to avoid the two scattering losses and wavefront distortions which may degrade the laser's beam high-quality. Moreover, scratch and dig specs

亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。

Laser modeling and simulation can be employed to reliably figure out the optimum crystal Proportions, doping density And maybe values of additional 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。

For quasi-three-level laser attain media as well as three-stage achieve media, one normally must limit the size to a worth which happens to be way too small for effective pump absorption, as reabsorption effects would normally spoil the general performance. For facet pumping, extra things to consider arrive into play; Moreover productive pump absorption, it's important to acquire a suitable spatial form Laser Crystal of the get profile.

材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 resources laser crystal crystal growth optical efficiency uncommon earth ions transition team ions 

The medium should have a superior transparency (minimal absorption and scattering) inside the wavelength regions of pump and laser radiation, and very good optical homogeneity. To some extent, this is dependent upon the caliber of the fabric, determined by information from the fabrication course of action.

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人造红宝石激光晶体是首次实现激光输出的材料。可用焰熔法、提拉法或助熔剂法生产单晶。用提拉法容易获得大尺寸优质晶体。