OPTICAL AMPLIFIER AND PRODUCTION METHOD THEREOF

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A small-sized, highly efficient optical amplifier having a PLZT optical waveguide layer to which a rare earth element is added, and a method for manufacturing the same are provided. Disclosed is an optical amplifier including an optical waveguide layer, the optical waveguide layer including Pb1-xLax(ZryTi1-y)1-x/4 O3 (PLZT : 0

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