Simple design method for third-order dispersion compensation with a thin-film dispersion compensator |
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Authors: | Liu Jiayu Chao Shiuh |
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Affiliation: | Department of Electrical Engineering, National Tsing Hua University 101, Sec 2, Kuang Fu Road, Hsin-Chu, Taiwan 30055, China. |
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Abstract: | A novel and simple numerical method for finding the best thin-film structures for third-order dispersion compensation has been achieved. A target third-order dispersion value is specified first; then the multilayer thin-film structure is optimized to have a second-order dispersion spectrum, which has the least deviation from linearity and has a slope that equals the specified third-order dispersion value. Numerical examples are presented for reflection-type and transmission-type thin-film compensators. Both types can achieve required phase compensation, but the reflection type has a flatter amplitude response than the transmission type. |
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