Laser Crystal Secrets

Laser Crystal Secrets

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In addition, some versatility is dropped in experiments if just one cannot try out absorbers with various thickness or doping concentration, as an example, with no exchanging the laser crystal itself.

Which geometry, dopant and doping focus with the get medium are most advantageous count on quite a few things. The out there pump resource (form of laser diode or lamp) along with the envisaged pumping arrangement are essential factors, but the fabric itself also has some impact. One example is, titanium–sapphire lasers must be pumped with high intensities, for which the form of a transversely cooled rod, operated with relatively tiny pump and laser beam diameter, is more click here appropriate than e.

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Naturally, it is rather appealing that a offered crystal high quality is created consistently, Whilst unique laser patterns might have another sensitivity to content parameters.

The most achievable doping focus can depend strongly to the host materials and its fabrication technique.

A handful of laser crystal components have been demonstrated where by some saturable absorber materials is integrated for passive Q switching of the laser.

量子效率是发射光子数量与吸收光子数量的比率。高量子效率表明更大部分吸收能量被转化为激光光束，有助于提高激光的整体效率。

For quasi-three-level laser get media as well as three-stage obtain media, one generally has to Restrict the length to a price that is much too limited for effective pump absorption, as reabsorption outcomes would or else spoil the general performance. For side pumping, added considerations arrive into play; In addition to efficient pump absorption, it is important to acquire a suitable spatial condition of your acquire profile.

材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 materials laser crystal crystal progress optical general performance rare earth ions transition group ions 

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It could be oriented for near perpendicular incidence from the laser beam, or at Brewster's angle. It may be set in some stable mount which also functions being a heat sink. Much larger crystals tend to be employed for facet pumping e.g. with significant-electrical power 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。