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 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; Keisuke Kojima; David Millar; 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 MERL researcher Keisuke Kojima appointed as an Associate Editor of IEEE/OSA Journal of Lightwave Technology Date: January 1, 2020
Where: IEEE/OSA Journal of Lightwave Technology
MERL Contact: Keisuke Kojima
Research Areas: Communications, Electronic and Photonic DevicesBrief- Dr. Keisuke Kojima, Senior Principal Research Staff of MERL and Fellow of The Optical Society of America (OSA), has been appointed as Associate Editor of IEEE/OSA Journal of Lightwave Technology.
IEEE/OSA Journal of Lightwave Technology is a semi-monthly hybrid open-access journal, co-sponsored by seven IEEE technical societies and OSA, has been publishing leading work in optical waveguide technologies and their applications, from integrated photonics to optical networks.
- Dr. Keisuke Kojima, Senior Principal Research Staff of MERL and Fellow of The Optical Society of America (OSA), has been appointed as Associate Editor of IEEE/OSA Journal of Lightwave Technology.
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NEWS MERL Scientists Presenting 5 Papers including 2 Invited Talks at European Conference on Optical Communication (ECOC) 2019 Date: September 22, 2019 - September 26, 2019
MERL Contacts: Devesh Jha; Toshiaki Koike-Akino; Keisuke Kojima; David Millar; Kieran Parsons; Ye Wang
Research Areas: Artificial Intelligence, Communications, Electronic and Photonic Devices, Optimization, Signal ProcessingBrief- MERL Optical Team scientists will be presenting 5 papers including 2 invited talks at the 45th European Conference on Optical Communication (ECOC) 2019, which is being held in Dublin from September 22-26, 2019. Topics to be presented include recent advances in sophisticated constellation shaping schemes, lattice coding, and deep learning-based turbo equalization to mitigate fiber nonlinearity. Dr. Kojima is giving an invited workshop talk on deep learning-based nano-photonic device optimization. Dr. Tobias Fehenberger, a former Visiting Scientist is giving an invited talk related to our joint paper "Mapping Strategies for Short-Length Probabilistic Shaping"
ECOC is the largest optical communications event in Europe and a key meeting place for more than 1,500 scientists and researchers from institutions and companies across the world. The conference features more than 400 oral and poster presentations from various major telecoms industries and universities. As well as being one of the largest scientific conferences globally, ECOC also features Europe’s largest optical communications exhibition.
- MERL Optical Team scientists will be presenting 5 papers including 2 invited talks at the 45th European Conference on Optical Communication (ECOC) 2019, which is being held in Dublin from September 22-26, 2019. Topics to be presented include recent advances in sophisticated constellation shaping schemes, lattice coding, and deep learning-based turbo equalization to mitigate fiber nonlinearity. Dr. Kojima is giving an invited workshop talk on deep learning-based nano-photonic device optimization. Dr. Tobias Fehenberger, a former Visiting Scientist is giving an invited talk related to our joint paper "Mapping Strategies for Short-Length Probabilistic Shaping"
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Internships
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SP1370: Machine Learning based DPD for Power Amplifier
MERL is looking for a talented intern to work on the next generation Digital-predistortion algorithms for power amplifier linearization such as 5G. The development of a DPD system involves aspects of signal processing and statistical algorithm design, RF components and instrumentation, digital hardware and software. It is therefore both a challenging and intellectually rewarding experience. This will involve MATLAB coding, interfacing to test equipment such as power sources, signal generators and analyzers and construction and calibration of RF component assemblies. The ideal candidate should have knowledge and experience in adaptive signal processing, machine learning, and radio communication. Good practical laboratory skills are needed. RF semiconductor devices and circuit knowledge is a plus. Duration is 3 to 6 months.
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SP1441: Advanced Phased Array Transceiver
MERL is looking for a highly motivated, and qualified individual to join our internship program of advanced phased array research. The ideal candidate should be a senior Ph.D. student with rich experience in beam forming technologies. Knowledge of wireless communication, transceiver architecture, and digital signal processing, FPGA and/or Matlab programming skills are required. RF circuits knowledge will be a plus. Duration is 3-6 months with a flexible start date.
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Recent Publications
- , "Angular-Domain Channel Estimation for One-Bit Massive MIMO Systems: Performance Bounds and Algorithms", IEEE Transactions on Vehicular Technology, DOI: 10.1109/TVT.2020.2966003, ISSN: 0018-9545, Vol. 69, No. 3, January 2020.BibTeX Download PDFAbout TR2020-009
- @article{Liu2020jan,
- author = {Liu, Fangqing and Zhu, Heng and Li, Changheng and Li, Jian and Wang, Pu and Orlik, Philip V.},
- title = {Angular-Domain Channel Estimation for One-Bit Massive MIMO Systems: Performance Bounds and Algorithms},
- journal = {IEEE Transactions on Vehicular Technology},
- year = 2020,
- volume = 69,
- number = 3,
- month = jan,
- doi = {10.1109/TVT.2020.2966003},
- issn = {0018-9545},
- url = {https://www.merl.com/publications/TR2020-009}
- }
- , "Miniaturized silicon photonics devices for integrated optical signal processors", JLT (Invited Review Paper), January 2020.
- , "Gate Leakage Mechanisms and Modeling in GaN based High Electron Mobility Transistors – Literature Survey," Tech. Rep. TR2019-160, Mitsubishi Electric Research Laboratories, December 2019.BibTeX Download PDFAbout TR2019-160
- @techreport{Li2019sep,
- author = {Li, Kexin and Teo, Koon Hoo},
- title = {Gate Leakage Mechanisms and Modeling in GaN based High Electron Mobility Transistors – Literature Survey},
- institution = {Mitsubishi Electric Research Laboratories},
- year = 2019,
- month = dec,
- url = {https://www.merl.com/publications/TR2019-160}
- }
- , "Report on ISPSD 2019," Tech. Rep. TR2019-161, Mitsubishi Electric Research Laboratories, December 2019.BibTeX Download PDFAbout TR2019-161
- @techreport{Teo2019dec,
- author = {Teo, Koo Hoo},
- title = {Report on ISPSD 2019},
- institution = {Mitsubishi Electric Research Laboratories},
- year = 2019,
- month = dec,
- url = {https://www.merl.com/publications/TR2019-161}
- }
- , "Distributed Asynchronous Cyclic Delay Diversity-Based Cooperative Systems with a Passive Eavesdropper", IEEE Global Communications Conference (GLOBECOM), December 2019.BibTeX Download PDFAbout TR2019-136
- @inproceedings{Kim2019dec2,
- author = {Kim, Kyeong Jin and Liu, Hongwu and Wen, Maiwen and Orlik, Philip V. and Poor, H. Vincent},
- title = {Distributed Asynchronous Cyclic Delay Diversity-Based Cooperative Systems with a Passive Eavesdropper},
- booktitle = {IEEE Global Communications Conference (GLOBECOM)},
- year = 2019,
- month = dec,
- url = {https://www.merl.com/publications/TR2019-136}
- }
- , "Optimal Power Encoding of OFDM Signals in All-Digital Transmitters", IEEE Global Communications Conference (GLOBECOM), December 2019.BibTeX Download PDFAbout TR2019-137
- @inproceedings{Tanovic2019dec,
- author = {Tanovic, Omer and Ma, Rui and Orlik, Philip V. and Megretski, Aleksandre},
- title = {Optimal Power Encoding of OFDM Signals in All-Digital Transmitters},
- booktitle = {IEEE Global Communications Conference (GLOBECOM)},
- year = 2019,
- month = dec,
- url = {https://www.merl.com/publications/TR2019-137}
- }
- , "On-Orbit Additive Manufacturing of Parabolic Reflector via Solar Photopolymerization", International Astronautical Congress (IAC), October 2019.BibTeX Download PDFAbout TR2019-125
- @inproceedings{Weiss2019oct,
- author = {Weiss, Avishai and Yerazunis, William S. and Radyjowski, Patryk and Cottrell, Richard},
- title = {On-Orbit Additive Manufacturing of Parabolic Reflector via Solar Photopolymerization},
- booktitle = {International Astronautical Congress (IAC)},
- year = 2019,
- month = oct,
- url = {https://www.merl.com/publications/TR2019-125}
- }
- , "Mapping Strategies for Short-Length Probabilistic Shaping", European Conference on Optical Communication (ECOC), September 2019.BibTeX Download PDFAbout TR2019-106
- @inproceedings{Fehenberger2019sep,
- author = {Fehenberger, Tobias and Millar, David S. and Koike-Akino, Toshiaki and Kojima, Keisuke and Parsons, Kieran},
- title = {Mapping Strategies for Short-Length Probabilistic Shaping},
- booktitle = {European Conference on Optical Communication (ECOC)},
- year = 2019,
- month = sep,
- url = {https://www.merl.com/publications/TR2019-106}
- }
- , "Angular-Domain Channel Estimation for One-Bit Massive MIMO Systems: Performance Bounds and Algorithms", IEEE Transactions on Vehicular Technology, DOI: 10.1109/TVT.2020.2966003, ISSN: 0018-9545, Vol. 69, No. 3, January 2020.
