| Tunable optical waveguide directional coupler filter |
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| 2016-02-24 |
| Appl. Phys. Lett. 33, 161 (1978); http://dx.doi.org/10.1063/1.90292 An integrated optical filter composed of coupled nonidentical strip waveguides in LiNbO3 is demonstrated. The device has a 200‐Å bandwidth, is tunable over several hundred angstroms, and offers electrical control of the crossover efficiency. |
