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Composite Yb:YAG/sapphire thin-disk active elements for high-energy high-average power lasers

机译:复合YB:YAG / SAPPHIRE薄圆盘有源元素,用于高能量高均线电源激光器

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Composite active elements (AEs) of thin-disk geometry with an anti-amplified-spontaneous-emission (ASE) cap were created for the first time from dissimilar materials (Yb:YAG and sapphire crystals) using the surface-activated direct bonding method based on etching the surfaces with an Ar ion beam and then bringing them into optical contact. Using a sapphire anti-ASE cap allows the thermal lens optical power and the M-2 factor to be reduced significantly compared with the same AE with a YAG anti-ASE cap, and M-2 compared to standard Yb:YAG disks without an anti-ASE cap. Lasing with 320 W average power and similar to 50% slope efficiency was obtained. (C) 2020 Optical Society of America
机译:使用基于表面活化的直接键合方法,首次从不同的材料(YB:YAG和Sapphire Crystally)创建具有抗扩增自发发射(ASE)帽的薄盘几何形状的复合活性元件(AES) 用AR离子束蚀刻表面,然后将它们带入光学触点。 使用蓝宝石防ASE帽允许热透镜光功率和M-2因素与带有YAG防ASE帽的相同AE相比,与标准YB相比,M-2与M-2相比:YAG磁盘没有反 - 帽帽。 使用320W平均功率和类似于50%的坡度效率。 (c)2020美国光学学会

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