Narrow band optical filter using Goos–Hänchen shift in a cascaded waveguide structure
2014
Abstract An narrow band optical filter based on an enhanced Goos–Hanchen shift utilizing cascaded waveguide structure is proposed. We demonstrate in an experiment that a filter with 3 dB bandwidth of 0.19 nm and extinction ratio of 6.7 dB around a light wavelength of 859 nm is realized.
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