Albert J, Lit J W
Appl Opt. 1990 Jun 20;29(18):2798-804. doi: 10.1364/AO.29.002798.
The numerical modeling of field-assisted ion exchange in glass through a finite aperture is carried out. The effects of unequal ion mobilities and thermal diffusion are included we believe for the first time in the 2-D case. This allows for the modeling of optical channel waveguides with graded index profiles. It is demonstrated that annealing of backdiffused channel guides is far superior to backdiffusion alone in improving their circular symmetry for better coupling to optical fibers.
通过有限孔径对玻璃中的场辅助离子交换进行了数值模拟。我们认为在二维情况下首次考虑了不等离子迁移率和热扩散的影响。这使得能够对具有渐变折射率分布的光学通道波导进行建模。结果表明，在改善反向扩散通道波导与光纤的耦合的圆对称性方面，反向扩散通道波导的退火处理远比单独的反向扩散要好得多。
