期刊
OPTICS EXPRESS
卷 28, 期 5, 页码 7585-7595出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.387524
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资金
- Ministry of Science and Technology of the People's Republic of China [2016YFE0130000]
- National Natural Science Foundation of China [61904185, 61905269]
- Open Fund of State Key Laboratory of Transient Optics and Photonics
- Shanghai Sailing Program [18YF1428200, 19YF1456600]
We present the design of an adiabatic taper coupled Ge1-xSix electro-absorption modulator, which is based on Franz-Keldysh effect. The device has an active region of 0.8x50 mu m(2), an extinction ratio of more than 6 dB and an insertion loss less than 3 dB at the wavelength of 1550 nm. The operating bandwidth can be broadened to more than 90 nm by an MN block assisted heater with only 6.2 mW energy consumption. Moreover, the operating wavelength shift caused by material composition deviation can be compensated to the expected wavelength by thermal tuning. This design may play an important role in next-generation, high-density optical integrations for datacom and high-performance computing. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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