Lin Shengqiang, Li Yushan, Jin Feng. Graded refractive index waveguides with metal-cladding[J]. Chinese Journal of Lasers, 1983, 10(4): 232
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On the glass waveguide formed by ion exchange, a silver metal layer is deposited, thereby the graded refractive index waveguide with metal-cladding is made. Eigenvalues are solved by ray-optics method. Experimental results show that the measured values of effective, refractive indices agree with the theoretical ones.