| 摘要 |
A technique for implementing a tunable micro-ring filter is disclosed. According to an embodiment of the present invention, a tunable filter for optical communication systems comprises a first waveguide (110) forming a pattern with a second waveguide (112); a resonator (114) coupled to the first waveguide (110) and the second waveguide (112) wherein the resonator (114) comprises a nonlinear optical material; an electrode structure (214, 216) sandwiching the first waveguide (110), the second waveguide (112) and the resonator (114); the electrode structure (214, 216) adapted for receiving a tuning signal and tuning an effective index of the resonator in response to the tuning signal; and a substrate (130) supporting the first waveguide (110), the second waveguide (112), the resonator (114) and the electrode structure (214, 216).
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