16 February 2017 Characterization of glass planar waveguides prepared by copper ion exchange method
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Abstract
Copper-doped planar glass waveguides were prepared by thermal ion exchange technique in molten mixture of copper sulfate and sodium sulfate (molar ratio of 50:50%) at temperatures of 565-605°C and different diffusion times of 15-30 minutes. The effective indices were measured by means of prism-coupled technique, and the refractive index profiles of the waveguides were reconstructed by IWKB method. The photoluminescence (PL) of the waveguides were studied at room temperature. The broad blue-green emission bands centered 510 nm (at the excitation wavelength of 286 nm) were observed on the waveguides. The refractive index profiles and the blue-green luminescence of the waveguides were strongly influenced by the prepared and annealed processes.
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Fangda Yu, Xiaowei Zhao, Yue Ding, Chuanxin Teng, Jie Zheng, "Characterization of glass planar waveguides prepared by copper ion exchange method", Proc. SPIE 10106, Integrated Optics: Devices, Materials, and Technologies XXI, 101061K (16 February 2017); doi: 10.1117/12.2249664; https://doi.org/10.1117/12.2249664
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