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All-silicon microring avalanche photodiodes with a >65 A/W response
Abstract
We report an all-Si microring (MRR) avalanche photodiode (APD) with an ultrahigh responsivity (R) of 65 A/W, dark current of 6.5 µA, and record gain-bandwidth product (GBP) of 798 GHz at −7.36 V. The mechanisms for the high responsivity have been modelled and investigated. Furthermore, open eye diagrams up to 20 Gb/s are supported at 1310 nm at −7.36 V. The device is the first, to the best of our knowledge, low cost all-Si APD that has potential to compete with current commercial Ge- and III–V-based photodetectors (PDs). This shows the potential to make the all-Si APD a standard “black-box” component in Si photonics CMOS foundry platform component libraries.
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Although relatively easier to achieve in Si APDs at 850 nm, simultaneous (at the same bias voltage) optimization of gain-BW-noise has remained challenging for low-voltage Si/Ge APDs or Si resonant APDs in C/L/O bands.
“Although relatively easier to achieve in Si APDs at 850 nm117, simultaneous (at the same bias voltage) optimization of gain-BW-noise has remained challenging for low-voltage Si/Ge APDs118 or Si resonant APDs119,120 in C/L/O bands.”
From Roadmapping the next generation of silicon photonics (2024) · cites this paper as [120]
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Metadata
- Authors
- Peng, Y., Yuan, Y., Sorin, W. V., Cheung, S., Huang, Z., Fiorentino, M., & Beausoleil, R. G.
- Affiliations
- Hewlett-Packard (United States) (US)
- Hewlett Packard Labs
- Corresponding author
- Peng, Yiwei
- Yuan, Yuan
- Sorin, Wayne V.
- Cheung, Stanley
- Huang, Zhihong
- Beausoleil, Raymond G.
- ORCID
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 2023-02-28
- Volume
- 48
- Issue
- 5
- Pages
- 1315
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W4319079243
- Cited by
- 23
- References
- 25
- Citations by year
- 2026: 2 · 2025: 7 · 2024: 9 · 2023: 5
- FWCI
- 1.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Optics Letters (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Photonic and Optical Devices
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Semiconductor Lasers and Optical Devices
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Photonic Communication Systems
- Keywords
- microring resonators, avalanche photodiode, high responsivity, gain-bandwidth product, dark current, open eye diagram, silicon photonics
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