Not known Facts About Laser Crystal

Not known Facts About Laser Crystal

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The most typical laser-active unusual earth ions and host media together with some usual emission wavelengths are proven in the next table:

These ions help the crystal to amplify gentle for the laser wavelength by means of stimulated emission, when Vitality is supplied to the crystal by using absorption of pump gentle (�?optical pumping

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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Which geometry, dopant and doping concentration in the gain medium are most beneficial depend on various things. The available pump source (variety of laser diode or lamp) plus the envisaged pumping arrangement are important components, but the material by itself also has some affect. For instance, titanium–sapphire lasers need to be pumped with high intensities, for which the shape of the transversely cooled rod, operated with reasonably compact pump and laser beam diameter, is more ideal than e.

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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 A further case in point, Q-switched lasers access a better population density from the upper laser amount and are for that reason extra sensitive to quenching outcomes and energy transfer procedures; consequently, a Laser Crystal decreased doping density is usually suitable for these gadgets. For high-electric power lasers, decreased doping densities in many cases are used to Restrict the density of heat technology, While slim-disk lasers perform finest with extremely doped crystals. Numerous laser products and solutions never get to the comprehensive functionality potential because this kind of specifics have not been correctly worked out.

Laser modeling and simulation can be employed to reliably determine the the best possible crystal Proportions, doping density and possibly values of supplemental parameters.

激光晶体的核心由固态晶体材料组成，通常掺杂了某些能够通过受激发射产生光放大的离子。这些离子的性质对激光晶体的性能起决定作用。

For quasi-three-stage laser obtain media or even a few-amount achieve media, one particular normally ought to Restrict the length to a price which happens to be also limited for productive pump absorption, as reabsorption consequences would usually spoil the effectiveness. For side pumping, additional factors occur into Engage in; Moreover economical pump absorption, it can be crucial to get an appropriate spatial shape of your acquire profile.

材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 materials laser crystal crystal expansion optical efficiency unusual earth ions changeover team ions 

The medium ought to have a significant transparency (very low absorption and scattering) inside the wavelength locations of pump and laser radiation, and superior optical homogeneity. To some extent, this is determined by the caliber of the fabric, determined by details from the fabrication approach.

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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。