Nd3+-doped ion-exchanged aluminum germanate glass channel waveguide
Nd3+-doped ion-exchanged aluminum germanate glass channel waveguide
复制标题
掺Nd3离子交换锗酸铝玻璃通道波导
DOI：
10.1364/ome.5.000113
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发表时间：
2015-01-01
影响因子：
2.8
通讯作者：
Lin, H.
中科院分区：
文献类型：
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作者：
Chen, B. J.;Shen, L. F.;Lin, H.
在具有潜在光敏性能的掺Nd3+锗酸铝(NMAG)玻璃中制备了K+-Na+离子交换沟道光波导。通道光波导在1.3微米处表现为单模，模场直径分别为水平10.1微米和垂直5.3微米。在与800 nm半导体激光泵浦相似的条件下，记录了来自F-4(3/2)能级的905、1060、1334和类似于816 nm的放大自发辐射(ASE)，得到了F-4(3/2)-GT；I-4(11/2)和F-4(3/2)->；I-4(13/2)跃迁的最大受激发射截面分别为21.5×10(-21)和7.6×10(-21)cm(2)。此外，在各种Nd3+掺杂情况下，2wt%Nd2O3的量子效率为71.8%，发射强度最大，被认为是紧凑沟道波导的最佳掺杂浓度。离子交换Nd3+掺杂NMAG玻璃通道光波导为光波导放大器、宽带光源和红外紫外光写入光栅光波导激光器的发展提供了良好的前景。(C)2014年美国光学学会
K+-Na+ ion-exchanged channel waveguide has been fabricated in Nd3+ doped aluminum germanate (NMAG) glasses with potential photosensitive property. The channel waveguide exhibits single mode at 1.3 mu m and the mode field diameters were measured to be horizontally 10.1 mu m and vertically 5.3 mu m, respectively. Amplified spontaneous emissions (ASE) of 905, 1060, 1334 and similar to 816nm originating from the F-4(3/2) level were recorded under similar to 800nm diode laser pumping and the maximum stimulated emission cross-sections for the F-4(3/2)-> I-4(11/2) and F-4(3/2)-> I-4(13/2) transitions are derived to be 21.5 x 10(-21) and 7.6 x 10(-21)cm(2), respectively. In addition, with 71.8% quantum efficiency and the largest emission intensity among various Nd3+ doping cases, 2wt% Nd2O3 is considered as the optimized doping concentration for the compact channel waveguide. The ion-exchanged Nd3+-doped NMAG glass channel waveguides offer favorable prospects for the development of optical waveguide amplifiers, broadband light sources and infrared UV-written grating waveguide lasers. (C) 2014 Optical Society of America