The best Side of Laser Crystal
The best Side of Laser Crystal
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The most typical laser-Lively uncommon earth ions and host media together with some usual emission wavelengths are revealed in the subsequent desk:
激光晶体的极化性能可能会影响输出激光束的质量和特性。有些激光晶体产生线性偏振光，这对某些应用可能有益。
为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
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Which geometry, dopant and doping concentration on the acquire medium are most beneficial rely upon numerous variables. The offered pump source (sort of laser diode or lamp) as well as envisaged pumping arrangement are important variables, but the fabric alone also has some influence. As an example, titanium–sapphire lasers need to be pumped with superior intensities, for which the shape of the transversely cooled rod, operated with comparatively compact pump and laser beam diameter, is more suitable than e.
晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。
Obviously, it is vitally appealing that a specified crystal top quality is produced constantly, Whilst distinct laser layouts can have a unique sensitivity to product parameters.
The most check here probable doping concentration can rely strongly to the host product and its fabrication technique.
Some laser crystal resources happen to be shown the place some saturable absorber material is included for passive Q switching of a laser.
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It is obvious that distinct programs result in extremely different requirements on laser gain media. Due to this, a wide array of various crystals are employed, and creating the proper choice is important for setting up lasers with optimum performance.
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The medium ought to have a high transparency (reduced absorption and scattering) while in the wavelength areas of pump and laser radiation, and fantastic optical homogeneity. To some extent, this relies on the quality of the material, based on aspects of the fabrication procedure.
It could be oriented for near perpendicular incidence in the laser beam, or at Brewster's angle. It could be fastened in certain good mount which also functions as a warmth sink. Bigger crystals are generally utilized for aspect pumping e.g. with significant-ability diode bars.
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。