Abstract

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.

© 1993 Optical Society of America

Fabrication of buried channel waveguides in K⁺–Na⁺ ion-exchanged glass and their application to notch filters

Iain S. Mauchline and George Stewart
Opt. Lett. 18(21) 1801-1803 (1993)

Exposed-core single-mode-fiber channel-dropping filter using a high-index overlay waveguide

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Reduced sidelobe integrated acousto-optic filter with birefringence apodization

L. B. Aronson, G. Rankin, W. R. Trutna, and D. W. Dolfi
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Wavelength tunability of components based on the evanescent coupling from a side-polished fiber to a high-index-overlay waveguide

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Waveguide-coupled octagonal microdisk channel add–drop filters

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