Abstract

We describe here the design and operation of voltage tunable wavelength filters fabricated in titanium diffused LiNbO₃. The devices, based on the nonsymmetric interferometer, have channel separations of 11–31 nm at λ = 1300 nm, and tuning rates of 3–10 nm/V. The periodic wavelength response of these filters allows them to be cascaded to combine or separate 2^N channels in N stages.

© 1989 Optical Society of America

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