Improvement of the Transmission Spectra of Tunable Wavelength-Selective Liquid Crystal Fabry-Perot Interferometer Filters

概要

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A reflection-type tunable liquid-crystal Fabry-Perot filter, in which the input light beam passes through a cell twice after reflection by a minor, is shown to have improved transmission characteristics. Simulation and experimental results show that this is an effective way to decrease the cross talk between neighboring channels, even though there is a slight increase in loss due to the double pass and the minor. When these filters are applied to wavelength division multiplexing systems with analog-amplitude modulation, they increase the channel capacity to three times the original value.
社団法人応用物理学会の論文
1993-10-01