Laser Crystal - An Overview
Laser Crystal - An Overview
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Distinct crystalline resources are extremely distinct regarding their hardness and other Homes, which figure out with which procedures And just how very easily they may be cut and polished with top quality.
The medium should have a higher transparency (minimal absorption and scattering) during the wavelength locations of pump and laser radiation, and superior optical homogeneity. To some extent, this depends on the caliber of the fabric, determined by facts from the fabrication process.
The host crystal is far more than just a means to repair the laser-Energetic ions at selected positions in Place. Several Homes with the host material are crucial:
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。
The maximum possible doping concentration can count strongly within the host materials and its fabrication approach.
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GWU-Lasertechnik has more than thirty years of encounter in distributing laser crystals. Select GWU to gain from our extensive understanding and in-field encounter!
A significant harm threshold concerning pulse fluence or peak intensity is often essential for prime-Electrical power 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 focus of your obtain medium are most advantageous count on quite a few variables. The available pump resource (sort of laser diode or lamp) along with the envisaged pumping arrangement are essential aspects, but the fabric by itself website also has some impact. As an example, titanium–sapphire lasers ought to be pumped with superior intensities, for which the form of the transversely cooled rod, operated with rather tiny pump and laser beam diameter, is more appropriate than e.
It might be oriented for around perpendicular incidence of your laser beam, or at Brewster's angle. It may be preset in a few solid mount which also acts being a warmth sink. Much larger crystals tend to be employed for aspect pumping e.g. with significant-power diode bars.
The commonest laser-Energetic exceptional earth ions and host media together with some usual emission wavelengths are shown in the following table:
People surfaces that are passed with the laser beam are Generally both oriented at Brewster's angle or have an anti-reflection coating.
Naturally, it is rather fascinating that a given crystal top quality is created consistently, Though distinct laser patterns can have a unique sensitivity to material 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。
With That idea, a single doesn't need to have an extra saturable absorber crystal, in order that one may well make extra compact Q-switched laser setups with lessen inner parasitic losses. Nonetheless, unwelcome side effects might also take place, for example getting undesirable valence states of your included ions or Electrical power transfers.
GWU provides all popular laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and many others.) by using a broad range of specifications. Apart from the properly-founded materials, progressive crystals with remarkable Homes like Yb:CALGO can open up new horizons for demanding laser applications. Irrespective of no matter whether unique parts for R & D purposes are demanded or Price-productive quantities in tiny, medium or significant batches with in-time shipping with the generation line are required: GWU’s focused service helps to discover the very best Main elements for your software.
It is obvious that distinct apps cause extremely different necessities on laser achieve media. Because of this, a broad assortment of various crystals are employed, and building the proper alternative is important for constructing lasers with ideal overall 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。