LASER CRYSTAL SECRETS

Laser Crystal Secrets

Laser Crystal Secrets

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The commonest laser-Lively uncommon earth ions and host media along with some common emission wavelengths are shown in the subsequent table:

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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。

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。

The host medium influences strongly the wavelength, bandwidth and changeover cross-sections of pump and laser transitions and in addition the upper-state 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。

活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的,确保连续操作并防止浪费的非辐射衰变。

亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力,这对激光动作至关重要。

A couple of laser crystal elements have been demonstrated where by some saturable absorber product is included 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。

These surfaces which happen to be passed via the laser beam are Ordinarily either oriented at Brewster's angle or have an anti-reflection coating.

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For numerous good reasons, composite crystals click here have gotten well known. These Use a spatially various chemical composition and can be produced with Unique styles.

With that concept, 1 would not need to have yet another saturable absorber crystal, in order that one particular might make much more compact Q-switched laser setups with reduce internal parasitic losses. Even so, unwelcome Negative effects may additionally come about, like acquiring unwelcome valence states of the associated ions or Vitality transfers.

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。

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