Narrow-bandwidth optical waveguide transmission filters |
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| Authors: | Hill KO Johnson DC Bilodeau F Faucher S |
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| Affiliation: | Communications Research Centre, Ottawa, Canada; |
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| Abstract: | A general method for fabricating narrowband transmission filters at optical frequencies is proposed. For fibre- or integrated-optic applications the method consists of forming a waveguide loop by connecting the output ports of a 3dB coupler to each other. A Bragg reflection grating in the loop determines the filters frequency response. |
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