Electro-optic polymer/titanium dioxide hybrid core ring resonator modulators
| Autor: | Isao Aoki, Andrew M. Spring, Akira Otomo, Feng Qiu, Feng Yu, Shiyoshi Yokoyama |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
business.industry Poling Condensed Matter Physics Cladding (fiber optics) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Amplitude modulation chemistry.chemical_compound Resonator Ring modulation chemistry law Titanium dioxide Electrode Optoelectronics business Waveguide |
| Zdroj: | Laser & Photonics Reviews. 7:L84-L88 |
| ISSN: | 1863-8880 |
| Popis: | Compact electro-optic (EO) modulators are desirable for a number of applications. In this study, a ring modulator has been fabricated in the titanium dioxide (TiO2) core and EO polymer cladding waveguide structure. A 250-nm thick TiO2 core was utilized to minimize the ring radius down to 100 μm, to avoid using the top cladding between the EO polymer and the electrode, and to improve the poling efficiency. The resonance obtained by the ring modulator was observed to shift by 0.02 nm/V due to the enhanced in-device EO coefficient of 105 pm/V. A modulation depth of 3 dB was observed at the frequency response function at 20 kHz using 2-V Vp–p clock signal. |
| Databáze: | OpenAIRE |
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