Electronic and Photonic Devices
Pursuing theoretical and experimental research for next generation devices.
We explore various device technologies, material science and device architectures to dramatically improve power and RF device performance to achieve higher efficiency, high linearity and much wider frequency band. We develop novel photonic integrated circuits to improve performance and reduce cost in optical communications applications.
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Researchers
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Awards
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AWARD Toshiaki Koike-Akino elected Fellow of Optica Date: November 18, 2021
Awarded to: Toshiaki Koike-Akino
MERL Contact: Toshiaki Koike-Akino
Research Areas: Communications, Electronic and Photonic Devices, Signal ProcessingBrief- Toshiaki Koike-Akino's research activities in communications, error control coding and optical technologies at MERL have earned him election as a Fellow Member of Optica (formerly OSA), the foremost professional association in optics and photonics worldwide. Fellow membership in Optica is limited to no more than ten percent of the membership and is reserved for members who have served with distinction in the advancement of optics and photonics. Koike-Akino is one of 106 members from 24 countries in Optica’s 2022 Fellows Class, elected during the Board of Directors of Optica meeting held on 2nd of November, 2021.
“Congratulations to the 2022 Optica Fellows,” said 2021 President Connie Chang-Hasnain, University of California, Berkeley, USA. “These members exemplify what it means to be a leader in optics and photonics. Your election, by your peers, confirms the important contributions made within our field. Thank you for your dedication to Optica, and for advancing the science of light.”
Koike-Akino's elevation to Fellow is specifically “for outstanding and innovative contributions to R&D in enabling technologies for optical communications, including nonlinear equalizers, high-dimensional modulations, and FEC (Forward Error Correction),” said Meredith Smith, Director, Optica Awards and Honors Office. "Again, congratulations on joining this esteemed group of Optica members."
About Optica
Optica (formerly OSA) is dedicated to promoting the generation, application, archiving and dissemination of knowledge in optics and photonics worldwide. Founded in 1916, it is the leading organization for scientists, engineers, business professionals, students and others interested in the science of light. Optica’s renowned publications, meetings, online resources and in-person activities fuel discoveries, shape real-life applications and accelerate scientific, technical and educational achievement.
- Toshiaki Koike-Akino's research activities in communications, error control coding and optical technologies at MERL have earned him election as a Fellow Member of Optica (formerly OSA), the foremost professional association in optics and photonics worldwide. Fellow membership in Optica is limited to no more than ten percent of the membership and is reserved for members who have served with distinction in the advancement of optics and photonics. Koike-Akino is one of 106 members from 24 countries in Optica’s 2022 Fellows Class, elected during the Board of Directors of Optica meeting held on 2nd of November, 2021.
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AWARD MERL researchers presented 5 papers at the 2016 Optical Fiber Communication Conference (OFC), including one "Top Scored" paper Date: March 24, 2016
Awarded to: Toshiaki Koike-Akino, Keisuke Kojima, David S. Millar, Kieran Parsons, Tsuyoshi Yoshida, Takashi Sugihara
MERL Contacts: Toshiaki Koike-Akino; Kieran Parsons
Research Areas: Communications, Electronic and Photonic Devices, Signal ProcessingBrief- Five papers from the Optical Comms team were presented at the 2016 Optical Fiber Conference (OFC) held in Anaheim, USA in March 2016. The papers relate to enhanced modulation formats, constellation shaping, chromatic dispersion estimation, low complexity adaptive equalization and coding for coherent optical links. The top-scored paper studied optimal selection of coding and modulation sets to jointly maximize nonlinear tolerance and spectral efficiency.
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News & Events
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NEWS Mitsubishi Electric Corporation Press Release Announces Worlds First GaN Power Amplifier Capable of Wideband Operation for 4G, 5G and Beyond 5G/6G. Date: June 8, 2023
MERL Contact: Toshiaki Koike-Akino
Research Areas: Communications, Electronic and Photonic Devices, Machine Learning, Signal ProcessingBrief- Mitsubishi Electric Corporation announced today it has developed what is believed to be the world's first gallium nitride (GaN) power amplifier that achieves a frequency range of 3,400MHz using a single power amplifier, which the company has demonstrated can be used for 4G, 5G and Beyond 5G/6G communication systems operating at different frequencies in a single base station. The amplifier is expected to enable the radio unit (transceiver) to be shared with different communication systems and lead to more power-efficient base stations.
Mitsubishi Electric Researchers, Toshiaki Koike-Akino and Koon Hoo Teo helped developed the technology and device. Technical details will be presented at the IEEE International Microwave Symposium 2023 this month.
Please see the link below for the full press release from Mitsubishi Electric.
- Mitsubishi Electric Corporation announced today it has developed what is believed to be the world's first gallium nitride (GaN) power amplifier that achieves a frequency range of 3,400MHz using a single power amplifier, which the company has demonstrated can be used for 4G, 5G and Beyond 5G/6G communication systems operating at different frequencies in a single base station. The amplifier is expected to enable the radio unit (transceiver) to be shared with different communication systems and lead to more power-efficient base stations.
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EVENT MERL's Virtual Open House 2022 Date & Time: Monday, December 12, 2022; 1:00pm-5:30pm ET
Location: Mitsubishi Electric Research Laboratories (MERL)/Virtual
Research Areas: Applied Physics, Artificial Intelligence, Communications, Computational Sensing, Computer Vision, Control, Data Analytics, Dynamical Systems, Electric Systems, Electronic and Photonic Devices, Machine Learning, Multi-Physical Modeling, Optimization, Robotics, Signal Processing, Speech & Audio, Digital VideoBrief- Join MERL's virtual open house on December 12th, 2022! Featuring a keynote, live sessions, research area booths, and opportunities to interact with our research team. Discover who we are and what we do, and learn about internship and employment opportunities.
See All News & Events for Electronic and Photonic Devices -
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Internships
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ST0068: Internship - Single-Photon Lidar Algorithms
The Computational Sensing Team at MERL is seeking an intern to work on estimation algorithms for single-photon lidar. The ideal candidate would be a PhD student with a strong background in statistical modeling, estimation theory, computational imaging, or inverse problems. The intern will collaborate with MERL researchers to design new lidar reconstruction algorithms, conduct simulations, and prepare results for publication. A detailed knowledge of single-photon detection, lidar, and Poisson processes is preferred. Hands-on optics experience is beneficial but not required. Strong programming skills in Python or MATLAB are essential. The duration is anticipated to be at least 3 months with a flexible start date.
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Recent Publications
- , "System-Technology Co-Optimization of Multimetal Gated AlGaN/GaN HEMT for Improved RF Linearity", Journal of Electron Devices Society, December 2024.BibTeX TR2024-171 PDF
- @article{Hossain2024dec,
- author = {Hossain, Toiyob and Hossain, Tanvir and Anindya Alam, A. and sikder, Bejoy and Xie, Qingyun and Yuan, Mengyang and Yagyu, Eiji and Teo, Koon Hoo and Palacios, Tomas and Chowdhury, Nadim and Wang, Yebin}},
- title = {System-Technology Co-Optimization of Multimetal Gated AlGaN/GaN HEMT for Improved RF Linearity},
- journal = {Journal of Electron Devices Society},
- year = 2024,
- month = dec,
- url = {https://www.merl.com/publications/TR2024-171}
- }
- , "AI-assisted Field Plate Design of GaN HEMT Device", Advanced Theory and Simulation, October 2024.BibTeX TR2024-152 PDF
- @article{Xiang2024oct,
- author = {Xiang, Xiaofeng and Palash, Rafid and Yagyu, Eiji and Dunham, Scott and Teo, Koon Hoo and Chowdhury, Nadim}},
- title = {AI-assisted Field Plate Design of GaN HEMT Device},
- journal = {Advanced Theory and Simulation},
- year = 2024,
- month = oct,
- url = {https://www.merl.com/publications/TR2024-152}
- }
- , "Universal Photonic Neural Networks with Quantum-Free Data Reuploading", SPIE Photonics for Quantum, DOI: 10.1117/12.3023231, June 2024.BibTeX TR2024-074 PDF
- @inproceedings{Kojima2024jun,
- author = {Kojima, Keisuke and Koike-Akino, Toshiaki}},
- title = {Universal Photonic Neural Networks with Quantum-Free Data Reuploading},
- booktitle = {SPIE Photonics for Quantum},
- year = 2024,
- month = jun,
- publisher = {SPIE},
- doi = {10.1117/12.3023231},
- url = {https://www.merl.com/publications/TR2024-074}
- }
- , "Fermi-Level Pinning Effect in Gate Region: A Case Study of Multi-Metal Gated AlGaN/GaN HEMT for High RF Linearity", IEEE Electron Devices Technology & Manufacturing Conference, DOI: 10.1109/EDTM58488.2024.10512349, February 2024.BibTeX TR2024-010 PDF
- @inproceedings{Hossain2024feb,
- author = {Hossain, Toiyob and sikder, Bejoy and Azad, Md.Tasnim and Xie, Qingyun and Yuan, Mengyang and Yagyu, Eiji and Teo, Koon Hoo and Palacios, Tomas and Chowdhury, Nadim},
- title = {Fermi-Level Pinning Effect in Gate Region: A Case Study of Multi-Metal Gated AlGaN/GaN HEMT for High RF Linearity},
- booktitle = {IEEE Electron Devices Technology & Manufacturing Conference},
- year = 2024,
- month = feb,
- doi = {10.1109/EDTM58488.2024.10512349},
- url = {https://www.merl.com/publications/TR2024-010}
- }
- , "The Role of Detection Times in Reflectivity Estimation with Single-Photon Lidar", IEEE Journal of Selected Topics in Quantum Electronics, DOI: 10.1109/JSTQE.2023.3333834, Vol. 30, No. 1, pp. 8800114:1-14, January 2024.BibTeX TR2024-003 PDF
- @article{Kitichotkul2024jan,
- author = {Kitichotkul, Ruangrawee and Rapp, Joshua and Goyal, Vivek K},
- title = {The Role of Detection Times in Reflectivity Estimation with Single-Photon Lidar},
- journal = {IEEE Journal of Selected Topics in Quantum Electronics},
- year = 2024,
- volume = 30,
- number = 1,
- pages = {8800114:1--14},
- month = jan,
- doi = {10.1109/JSTQE.2023.3333834},
- url = {https://www.merl.com/publications/TR2024-003}
- }
- , "AlGaN/GaN based Multi-Metal Gated High Electron Mobility Transistor with Improved Linearity", IEEE Transactions on Electron Devices, DOI: 10.1109/TED.2023.3311422, Vol. 70, No. 1, pp. 5570-5576, December 2023.BibTeX TR2023-153 PDF
- @article{Azad2023dec,
- author = {Azad, Tasnim and Hossain, Toiyob and Sikder, Bejoy and Xie, Qingyun and Yuan, Mengyang and Yagyu, Eiji and Teo, Koon Hoo and Palacios, Tomas and Chowdhury, Nadim},
- title = {AlGaN/GaN based Multi-Metal Gated High Electron Mobility Transistor with Improved Linearity},
- journal = {IEEE Transactions on Electron Devices},
- year = 2023,
- volume = 70,
- number = 1,
- pages = {5570--5576},
- month = dec,
- doi = {10.1109/TED.2023.3311422},
- url = {https://www.merl.com/publications/TR2023-153}
- }
- , "Joint Software-Hardware Design for Green AI", International Midwest Symposium on Circuits and Systems (MWSCAS), DOI: 10.1109/MWSCAS57524.2023.10405937, August 2023.BibTeX TR2023-096 PDF
- @inproceedings{Ahmed2023aug,
- author = {Ahmed, Md Rubel and Koike-Akino, Toshiaki and Parsons, Kieran and Wang, Ye},
- title = {Joint Software-Hardware Design for Green AI},
- booktitle = {International Midwest Symposium on Circuits and Systems (MWSCAS)},
- year = 2023,
- month = aug,
- publisher = {IEEE},
- doi = {10.1109/MWSCAS57524.2023.10405937},
- issn = {1558-3899},
- isbn = {979-8-3503-0210-3},
- url = {https://www.merl.com/publications/TR2023-096}
- }
- , "AutoHLS: Learning to Accelerate Design Space Exploration for HLS Designs", International Midwest Symposium on Circuits and Systems (MWSCAS), DOI: 10.1109/MWSCAS57524.2023.10405914, August 2023.BibTeX TR2023-097 PDF
- @inproceedings{Ahmed2023aug2,
- author = {Ahmed, Md Rubel and Koike-Akino, Toshiaki and Parsons, Kieran and Wang, Ye},
- title = {AutoHLS: Learning to Accelerate Design Space Exploration for HLS Designs},
- booktitle = {International Midwest Symposium on Circuits and Systems (MWSCAS)},
- year = 2023,
- month = aug,
- publisher = {IEEE},
- doi = {10.1109/MWSCAS57524.2023.10405914},
- issn = {1558-3899},
- isbn = {979-8-3503-0210-3},
- url = {https://www.merl.com/publications/TR2023-097}
- }
- , "System-Technology Co-Optimization of Multimetal Gated AlGaN/GaN HEMT for Improved RF Linearity", Journal of Electron Devices Society, December 2024.
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