Improvement of the Performance of a Shielded Velocity-Matched Ti:LiNbO_3 Optical Modulator by Using a Ridge Structure (Special Issue on Optical/Microwave Interaction Devices, Circuits and Systems)
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A shielded velocity-matched Ti:LiNbO_3 optical modulator with a ridge is investigated. The analytical method is based on the second-order triangular element finite element method. The thickness of the coplanar waveguide traveling-wave electrode is taken into consideration and the relationship between the electrode thickness and the optimum overlaid layer thickness is clarified. Incorporating a ridge into these Ti:LiNbO_3 optical modulators can improve not only their modulation bandwidth but also their driving voltage.
- 一般社団法人電子情報通信学会の論文
- 1993-02-25
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