Abstract
LiNbO3 optical modulators for band-operation with a resonant modulating electrode are investigated in this paper. We propose an asymmetric resonant structure consisting of two arms of modulating electrodes, where one arm is open-ended and the other arm is short-ended. The voltage standingwave was enhanced by the resonance of the electrodes, so that effective optical modulation was achieved, while the length of the modulating electrode was much shorter than the conventional travelingwave-type electrodes. The optical response at 6.2 GHz of a resonant modulator designed by maximizing the normalized induced phase was 4.94 of the response at dc with a non-resonant modulator.
| Original language | English |
|---|---|
| Pages (from-to) | 150-155 |
| Number of pages | 6 |
| Journal | IEICE Transactions on Electronics |
| Volume | E85-C |
| Issue number | 1 SPEC. |
| Publication status | Published - 2002 Jan |
| Externally published | Yes |
Keywords
- Asymmetric structure
- Impedance matching
- Optical modulator
- Resonance
- Waveguide
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
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Cite this
Kawanishi, T., Oikawa, S., Higuma, K., Sasaki, M., & Izutsu, M. (2002). Design of LiNbO3 optical modulator with an asymmetric resonant structure. IEICE Transactions on Electronics, E85-C(1 SPEC.), 150-155.