Sidelobe suppression in corrugated-waveguide filters
Optics Letters, Vol. 1, Issue 1, pp. 43-45 (1977)
http://dx.doi.org/10.1364/OL.1.000043
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Abstract
The reflection sidelobes of a corrugated optical waveguide filter are shown to be suppressed when the corrugation depth is tapered with a function that has low, Fourier-transform sidelobes. Several specific taper functions are considered, and sidelobe levels lower than -70 dB are shown to be feasible. A simple rule for estimating the 3-dB reflection bandwidth of a tapered corrugation is also presented.
Citation
P. S. Cross and H. Kogelnik, "Sidelobe suppression in corrugated-waveguide filters," Opt. Lett. 1, 43-45 (1977)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-1-1-43
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