M
M. Beals
Researcher at Massachusetts Institute of Technology
Publications - 28
Citations - 1844
M. Beals is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: CMOS & Photonics. The author has an hindex of 14, co-authored 28 publications receiving 1745 citations.
Papers
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Journal ArticleDOI
Waveguide-integrated, ultralow-energy GeSi electro-absorption modulators
Jifeng Liu,M. Beals,Andrew Pomerene,Sarah Bernardis,Rong Sun,Jing Cheng,Lionel C. Kimerling,Jurgen Michel +7 more
TL;DR: In this paper, a waveguide-integrated GeSi electroabsorption modulator on silicon with an ultra-low energy consumption of 50 fJ-1bit was presented, operating in the spectral range of 1539-1553 nm.
Journal ArticleDOI
High performance, waveguide integrated Ge photodetectors
Donghwan Ahn,Ching-yin Hong,Jifeng Liu,Wojciech Giziewicz,M. Beals,Lionel C. Kimerling,Jurgen Michel,Jian Chen,Franz X. Kärtner +8 more
TL;DR: A Ge p-i-n photodetector that is monolithically integrated with silicon oxynitride and silicon nitride waveguides, which facilitates the integration with CMOS circuits.
Journal ArticleDOI
Demonstration of a Tunable Microwave-Photonic Notch Filter Using Low-Loss Silicon Ring Resonators
Mahmoud Rasras,Kun-Yii Tu,Douglas M. Gill,Young-Kai Chen,Alice E. White,S.S. Patel,Andrew Pomerene,Daniel N. Carothers,J. Beattie,M. Beals,Jurgen Michel,Lionel C. Kimerling +11 more
TL;DR: In this paper, a multistage narrowband optical pole-zero notch filter is presented, which allows for reconfigurable and independent tuning of the center frequency, null depth, and bandwidth for one or more notches simultaneously.
Proceedings ArticleDOI
Electronic-photonic integrated circuits on the CMOS platform
Lionel C. Kimerling,Donghwan Ahn,Alyssa B. Apsel,M. Beals,Daniel N. Carothers,Y. K. Chen,Timothy J. Conway,Douglas M. Gill,M.J. Grove,Ching-yin Hong,Michal Lipson,Jifeng Liu,Jurgen Michel,Dong Pan,S.S. Patel,Andrew Pomerene,Mahmoud Rasras,Daniel K. Sparacin,Kun-Yii Tu,Alice E. White,Chee Wei Wong +20 more
TL;DR: The AS-EPIC project as mentioned in this paper is a high payoff research and development program for the Microsystems Technology Office (MTO) of DARPA, and the goal of the program is the development of technologies and design tools necessary to fabricate an application-specific, electronic-photonic integrated circuit.
Journal ArticleDOI
Impedance matching vertical optical waveguide couplers for dense high index contrast circuits
Rong Sun,M. Beals,Andrew Pomerene,Jing Cheng,Ching-yin Hong,Lionel C. Kimerling,Jurgen Michel +6 more
TL;DR: A compact, high-index contrast (HIC) vertical waveguide coupler for TE single mode operation with the lowest coupling loss of 0.20 dB +/- 0.05 dB at 1550 nm is designed and demonstrated.