Nonlinear Crystal - An Overview
Nonlinear Crystal - An Overview
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Laser modeling and simulation can be used to reliably decide the optimum crystal Proportions, doping density and possibly 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 crystal is a great deal more than simply a method to repair the laser-Lively ions at particular positions in Area. Several Houses with the host product 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。
For quasi-3-degree laser acquire media or even a few-degree acquire media, one normally ought to limit the duration to a price which can be too small for productive pump absorption, as reabsorption effects would usually spoil the functionality. For side pumping, more factors occur into Engage in; In addition to economical pump absorption, it is necessary to acquire an appropriate spatial condition in the attain profile.
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A significant injury threshold with regard to pulse fluence or peak depth might 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 of the achieve medium are most advantageous depend upon various things. The accessible pump supply (kind of laser diode or lamp) as well as the envisaged pumping arrangement are essential variables, but the fabric alone also has some impact. By way of example, titanium–sapphire lasers should be pumped with high intensities, for which the form of a transversely cooled rod, operated with fairly little pump and laser beam diameter, is more proper than e.
These tables contain only the commonest host crystals; many others exist, which happen to be considerably less usually made use of.
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A number of laser crystal products are already demonstrated where by some saturable absorber materials is included for passive Q switching of the laser.
For different factors, composite crystals have gotten preferred. These Have a very spatially various chemical composition and might be manufactured with Specific styles.
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, one particular would not have to have an additional saturable absorber crystal, to ensure that 1 may possibly make additional compact Q-switched laser setups with lessen interior parasitic losses. Nevertheless, undesirable Uncomfortable side effects could also manifest, which include getting undesired valence states on the concerned ions or Power transfers.
GWU features all prevalent laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and many others.) using a broad range of specs. Moreover the effectively-established products, modern crystals with excellent Houses like Yb:CALGO can open new horizons for demanding laser apps. Regardless of irrespective of whether personal parts for R & D functions are required or Expense-successful quantities in little, medium or massive batches with in-time supply with the manufacturing line are necessary: GWU’s committed assistance really helps to find the greatest core elements to your application.
It is obvious that distinct applications produce incredibly distinct requirements on laser get media. For that reason, a wide selection of various crystals are utilised, and making the appropriate option is important for developing lasers with ideal 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。