Investigation of a Fabry-Perot-Based Optical Filter for Broadband Multichannel Communication Systems

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Executive Summary

Based on Fabry-Perot structure, a multiple-channel filter is obtained in theory by changing the structure of spacer layers. This paper is concerned with the design of optical filters, based on thin-film interference, for multichannel optical communication systems with Ta2O5 and SiO2 materials for 1550 nm operation. The performance of the filter configuration is analyzed and the numerical results of the optimization parameters, such as central wavelength, 3-dB bandwidth, figure of merit and ripple in the passband, are reported. The variation of these parameters is also studied for various modified filter configurations.

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