期刊
APL PHOTONICS
卷 4, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5115136
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资金
- National Natural Science Foundation of China (NSFC) [11690031, 61575224, 61622510]
- Key R&D Program of Guangdong Province [2018B030325002]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01X121]
- Characteristic Innovation Projects of Universities in Guangdong Province [2017WTSCX002]
- Natural Science Foundation for Ph.D. in Guangdong Province [B6180990]
- International Cooperation Open Project of State Key Laboratory of Subtropical Building Science, South China University of Technology [2019ZA02]
We propose and demonstrate a hybrid silicon and lithium niobate Michelson interferometer modulator (MIM) with a reduced half-wave voltage-length product compared to a Mach-Zehnder modulator. The modulator is based on seamless integration of a high-contrast waveguide based on lithium niobate-a widely used modulator material-with compact, low-loss silicon circuitry. The present device demonstrates a half-wave voltage-length product as low as 1.2 V cm and a low insertion loss of 3.3 dB. The 3 dB electro-optic bandwidth is approximately 17.5 GHz. The high-speed modulations are demonstrated at 32 Gbit/s and 40 Gbit/s with the extinction ratio of 8 dB and 6.6 dB, respectively. The present device avoids absorption loss and nonlinearity in conventional silicon modulators and demonstrates the lowest half-wave voltage-length product in lithium niobate modulators. The hybrid MIM demonstrates high-speed data modulation showing potential in future optical interconnects. (C) 2019 Author(s).
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