Indicators on Laser Crystal You Should Know
Indicators on Laser Crystal You Should Know
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Laser modeling and simulation may be used to reliably figure out the the best possible crystal dimensions, doping density and possibly values of more parameters.
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。
The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions in addition to the higher-point out life span.
激光晶体由发光中心和基质晶体两部分组成。大部分激光晶体的发光中心由激活离子构成，激活离子部分取代基质晶体中的阳离子形成掺杂型激光晶体。激活离子成为基质晶体组分的一部分时，则构成自激活激光晶体。
For quasi-3-level laser attain media as well as 3-stage gain media, a single often should Restrict the length to a price which is much too short for productive pump absorption, as reabsorption outcomes would normally spoil the efficiency. For facet pumping, extra considerations arrive into Enjoy; In addition to productive pump absorption, it is necessary to get an acceptable spatial shape in the acquire profile.
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A substantial hurt threshold regarding pulse fluence or peak depth might be essential for prime-Electricity amplifiers.
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：
Which geometry, dopant and doping concentration of your get medium are most beneficial depend upon numerous aspects. The offered pump supply (variety of laser diode or lamp) along with the envisaged pumping arrangement are essential elements, but the material alone also has some affect. As an example, titanium–sapphire lasers need to be pumped with high intensities, for which the shape of a transversely cooled rod, operated with rather modest pump and laser beam diameter, is a lot more correct than e.
It could be oriented for in the vicinity of perpendicular incidence on the laser beam, or at Brewster's angle. It could be preset in a few stable mount which also acts as a warmth sink. Larger sized crystals are generally utilized for side pumping e.g. with substantial-electricity diode bars.
The commonest laser-Energetic exceptional earth ions and host media together with some normal emission wavelengths are shown in the subsequent desk:
People surfaces which can be handed via the laser beam are normally possibly oriented at Brewster's angle or have an anti-reflection coating.
Not surprisingly, it is extremely attractive that a supplied crystal quality is manufactured continuously, Though diverse laser types can have a different sensitivity to content parameters.
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。
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It is obvious that diverse programs cause quite various necessities on laser gain media. For that reason, a wide assortment of various crystals are made use of, and creating the appropriate option is important for constructing lasers with here the best possible performance.
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。