Laser Crystal - An Overview
Laser Crystal - An Overview
Blog Article
Laser modeling and simulation can be used to reliably identify the ideal crystal dimensions, doping density And perhaps values of extra parameters.
The medium should have a substantial transparency (small absorption and scattering) inside the wavelength areas of pump and laser radiation, and superior optical homogeneity. To some extent, this depends upon the caliber of the fabric, based on details in the fabrication course of action.
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions and in addition the upper-condition lifetime.
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 possible doping concentration can count strongly within the host product and its fabrication approach.
By submitting the data, you give your consent to the potential publication of your inputs on our website according to our rules. (If you afterwards retract your consent, We are going to delete Individuals inputs.) As your inputs are very first reviewed from the author, They could be released with some hold off.
GWU-Lasertechnik has greater than 30 decades of practical experience in distributing laser crystals. Decide on GWU to take advantage of our broad knowledge As well as in-area experience!
A substantial damage threshold with regard to pulse fluence or peak intensity may be vital for prime-Electrical power amplifiers.
These ions permit the crystal to amplify light-weight on the laser wavelength by means of stimulated emission, when Power is provided to the crystal by way of absorption of pump gentle (�?optical pumping
Which geometry, dopant and doping concentration on the attain medium are most advantageous depend upon quite a few elements. The offered pump resource (type of laser diode or lamp) along with the envisaged pumping arrangement are crucial factors, but the material by itself also has some affect. One example is, titanium–sapphire lasers ought to be pumped with higher intensities, for which the form of a transversely cooled rod, operated with reasonably smaller pump and laser beam diameter, is a lot more appropriate than e.
It may be oriented for around perpendicular incidence on the laser beam, or at Brewster's angle. It could be fastened in certain stable mount which also functions to be a warmth sink. Larger sized crystals are usually used for facet pumping e.g. with superior-power diode bars.
The most typical laser-Energetic uncommon earth ions and host media together with some usual emission wavelengths are demonstrated in the next table:
A number of laser crystal materials are already shown in which some saturable absorber product is incorporated for passive Q switching of the laser.
For various motives, composite crystals are getting to be well-known. These Use a spatially varying chemical composition and may be designed with special 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 will not get more info need to have a further saturable absorber crystal, making sure that just one 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 on the concerned ions or Power transfers.
GWU delivers all frequent laser crystals (Nd:YVO4, Nd:YAG, Yb:YAG and so on.) with a wide assortment of specs. In addition to the perfectly-recognized components, revolutionary crystals with superb Houses like Yb:CALGO can open new horizons for demanding laser purposes. Despite whether or not individual items for R & D functions are expected or Expense-efficient figures in small, medium or substantial batches with in-time delivery for that production line are wanted: GWU’s dedicated assistance helps to discover the most effective core parts for your application.
It is apparent 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。