A Simple Key For CLBO Crystal Unveiled
A Simple Key For CLBO Crystal Unveiled
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全固态紫外激光器以其体积小、寿命长、效率高、光束质量好、调谐范围宽、谱线窄等优点，广泛应用于机械探伤、光刻、微加工和医学等领域，等，利用大功率近红外相干光源作为基于非线性调谐技术的基频源，通过多级变频产生紫外相干辐射被认为是发展紫外相干光源的重要途径。紫外相干光源的关键问题是研制紫外波段的非线性光学变频晶体。非线性光学晶体是实现频率变换的条件之一，因此对非线性光学晶体的生长、尺寸、损伤电阻、转换效率和允许的参数范围提出了越来越高的要求。
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Due to thermal lens impact from the sound-condition lasers, if the heating management is inadequate, It's not necessarily simple to get the good-state laser by using a high electrical power as well as a high beam top quality concurrently. Recently, with the event of The skinny disk laser and one-crystal fiber (SCF) laser, a significant-electric power laser at the elemental wavelength (one μm) had been realized with a fantastic beam excellent In spite of a TEM00 method beam [4,24], which might be superior candidates for the basic in the DUV laser technology. One more applicant for the fundamental is the superior-ability fiber laser which might be accomplished by coherent beam mix with M2 price under 1.
On the opposite side, the facility scaling from the NIR laser is yet another aspect to improve the average electricity of the 193-nm DUV laser. Due to lack of the large-ability amplification Remedy of your NIR laser (for instance at 1553 nm), nonlinear frequency processes for example optical parameter oscillation (OPO) can be placed on produce a wavelength converter by shifting the wavelength from one μm to the specified wavelength and getting relative greater electrical power [21]. Not long ago, a diamond Raman laser confirmed its potential in acquiring a high energy as well as a substantial conversion effectiveness in the 1st Stokes of the one-μm laser [22,23], which suggests the possibility to be utilized inside the 193-nm DUV laser technology as a consequence of its high Raman gain and huge frequency shift.
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Furthermore, combining the reliable-point out laser with other nonlinear approach like stimulated Raman scattering, NIR lasers can be attained at new wavelengths with significant energy and substantial beam top quality, which was examined via the proof-of-principle experiment. This Raman laser scheme gives a fresh route to the large-electricity DUV laser, In particular for the wavelength of 193 nm.
The beam profile proven in Determine 7b demonstrated an excellent beam here good quality as on the list of deserves of Raman laser, which might be beneficial to produce a 193-nm DUV laser with a high quality beam.
Its UV absorption edge reaches a hundred and eighty nm. The efficient nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as substantial as that of KDP. CLBO crystals might be grown within the stoichiometric melt with lower viscosity.
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