The Greatest Guide To Laser Crystal

The Greatest Guide To Laser Crystal

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The commonest laser-Energetic rare earth ions and host media together with some normal emission wavelengths are demonstrated in the following desk:

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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。

Also, some overall flexibility is missing in experiments if one can't Check out absorbers with distinctive thickness or doping focus, one example is, with no exchanging the laser crystal by itself.

作为工业上使用较多的都是高掺钇铝石榴石，也就是说掺入不同的元素来达到不同的效果；作为工业激光，关注以下性能：

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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。

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。

A few laser crystal elements happen to be shown where by some saturable absorber materials is integrated for passive Q switching of the laser.

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-stage laser achieve media and even a few-degree attain media, just one usually really should limit the duration to a value and that is as well small for effective pump absorption, as reabsorption outcomes would otherwise spoil the functionality. For aspect pumping, supplemental concerns occur get more info into play; besides effective pump absorption, it can be crucial to acquire an acceptable spatial form with the gain profile.

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。

In 2017, we designed the whole world’s biggest Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output of Shanghai Superintense Ultrafast Laser Facility. The development of Yb and Tm doped GdScO3 laser crystals with particularly wide emission spectra drives the development of laser diode pumped ultrafast sound-condition lasers. With the increase in pulse Strength, peak electric power, and repetition level of solid-state lasers, laser crystals will develop towards bigger sizes, larger crystal top quality, and controllable essential general performance.

There is certainly a wide array of crystalline media, that may be grouped in accordance to big atomic constituents and crystalline buildings. Some important groups of crystals are:

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。