A Secret Weapon For Nonlinear Crystal
A Secret Weapon For Nonlinear Crystal
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Laser modeling and simulation can be used to reliably ascertain the ideal crystal Proportions, doping density And perhaps values of supplemental 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 and in addition the upper-condition life time.
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 utmost probable doping concentration can rely strongly to the host product and its fabrication method.
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A superior problems threshold concerning pulse fluence or peak intensity may be important for high-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 in the achieve medium are most advantageous count on various factors. The offered pump source (sort of laser diode or lamp) and also the envisaged pumping arrangement are very important things, but the fabric by itself also has some impact. One example is, titanium–sapphire lasers have to be pumped with higher intensities, for which the shape of the transversely cooled rod, operated with fairly tiny pump and laser beam diameter, is much more ideal than e.
It could be oriented for near perpendicular incidence from the laser beam, or at Brewster's angle. It may be set in a few sound mount which also acts being a heat sink. More substantial crystals usually are employed for aspect pumping e.g. with significant-electric power diode bars.
The most typical laser-active uncommon earth ions and host media together with some usual emission wavelengths are revealed in the next table:
Some laser crystal supplies are actually demonstrated wherever some saturable absorber material is integrated for passive Q switching of the laser.
For numerous good reasons, composite crystals are becoming here common. These Have got a spatially varying chemical composition and might be built with Unique designs.
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 concept, a single isn't going to need to have a further saturable absorber crystal, making sure that a person may perhaps make extra compact Q-switched laser setups with lessen interior parasitic losses. Having said that, unwelcome side effects may also occur, which include getting undesired valence states in the concerned ions or energy transfers.
GWU delivers all frequent laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG etc.) with a wide selection of specifications. Other than the very well-proven supplies, ground breaking crystals with remarkable Qualities like Yb:CALGO can open up new horizons for demanding laser apps. Regardless of whether particular person pieces for R & D applications are necessary or cost-successful numbers in smaller, medium or big batches with in-time shipping for your generation line are required: GWU’s committed service helps you to locate the greatest Main components for the software.
It is clear that distinct apps produce extremely distinct necessities on laser attain media. For this reason, a broad assortment of different crystals are utilised, and building the ideal choice is essential for constructing lasers with optimum efficiency.
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。