Glass integrated-optic channel-dropping filter.
An integrated-optic comb filter has been achieved based on the coupling between a K(+)-Na(+) ion-exchange waveguide and individual higher-order modes of a multimoded overlay film. Notch widths observed to date range from 8 to 50 nm, with channel spacings of between 150 and 220 nm.
Mauchline
I S
IS
Stewart
G
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