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A 128 Gb/s PAM4 Silicon Microring Modulator With Integrated Thermo-Optic Resonance Tuning
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We report the first demonstration of a silicon photonic microring modulator with modulation data rate up to 128 Gb/s (64 Gbaud PAM4). The microring modulator exhibits an electro-optic phase efficiency of Vπ· L = 0.52 V·cm, an electro-optic bandwidth of 50 GHz, and a measured transmitter dispersion eye closure quaternary of 3.0 dB at this data rate. In addition, the resonant wavelength of the microring modulator can be tuned across a full free spectral range using an integrated heater with a thermo-optic phase efficiency of 19.5 mW/π-phase shift.
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“All modulators suffer from a tradeoff between FoMefficiency and E/O BW49–51.”
From Roadmapping the next generation of silicon photonics (2024) · cites this paper as [50]
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“For MRMs, which are very compact, the loss due to α becomes less critical50”
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“APDs also need to be biased optimally and stabilized for temperature and voltage drift, but that is less challenging117 than what has already been demonstrated for microring circuits50.”
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Metadata
- Authors
- Sun, J., Kumar, R., Sakib, M., Driscoll, J. B., Jayatilleka, H., & Rong, H.
- Affiliations
- Intel (United States) (US)
- Venue
- Journal of Lightwave Technology
- Published
- 2019-01-01
- Volume
- 37
- Issue
- 1
- Pages
- 110-115
- ISSN
- 0733-8724 (ISSN-L)
- 1558-2213
- OpenAlex
- W2898151429
- Cited by
- 292
- References
- 17
- Citations by year
- 2026: 21 · 2025: 51 · 2024: 46 · 2023: 34 · 2022: 50 · 2021: 35 · 2020: 37 · 2019: 17
- FWCI
- 8.59
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Lightwave Technology (publishedVersion)
- Funders
- Intel Corporation
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Photonic and Optical Devices
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Photonic Communication Systems
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Optical Network Technologies
- Keywords
- silicon microring resonator, electro-optic modulator, PAM4 modulation, thermo-optic tuning, integrated heater, electro-optic bandwidth, high-speed optical transmitter, free spectral range tuning
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