IEEE Transactions on Emerging Topics in Computing

Covering aspects of computer science, computing technology, and computing applications not currently covered by other IEEE Computer Society Transactions

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From the July-September 2018 issue

Towards Maximum Energy Efficiency in Nanophotonic Interconnects with Thermal-Aware On-Chip Laser Tuning

By Hui Li, Alain Fourmigue, Sébastien Le Beux, Ian O’Connor and Gabriela Nicolescu

Featured article thumbnail image Nanophotonic is an emerging technology considered as one of the key solutions for future generation on-chip interconnects. However, silicon photonic devices are highly sensitive to temperature variation. Under a given chip activity, this leads to a lower laser efficiency and a drift of wavelengths of optical devices (on-chip lasers and microring resonators (MRs)), which results in a higher Bit Error Ratio (BER). In this paper, we propose to jointly tune the on-chip lasers and and MRs in order to align the wavelengths of the emitted signals with the resonant wavelengths of the MRs. Our method allows significant improvements of the power consumption with regard to the related methods, while meeting the BER requirement. Compared to methods for which laser tuning is not possible, results show that a combined tuning of laser and MRs leads to 53 percent energy reduction when the uniform chip activity decreases from 20 to 5 percent. BER-energy tradeoffs have been explored and allow strategies to be defined to minimize either the energy, or the BER. As a key result, we have shown that, under specific chip activities, increasing the laser power consumption allows both energy and BER to be improved. This trend has been observed for a MWSR channel interconnecting 12 interfaces.

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Editorials and Announcements


  • We are pleased to announce that Cecilia Metra, a Confirmed Full Professor in Electronics at the University of Bologna, Italy, has been named the new Editor-in-Chief of TETC starting in 2018.
  • TETC has been included in the Clarivate Analytics Journal Citation Reports (JCR) 2016 Edition with the following results:
    • Impact Factor: 3.826
    • Eigenfactor: 0.00181
    • Article Influence Score: 1.073
    All TETC articles dating back to the first 2013 issue will be indexed and abstracted in:
    • Science Citation Index Expanded (also known as SciSearch®)
    • Journal Citation Reports/Science Edition
    • Current Contents®/Engineering Computing and Technology
  • TETC Tips and Tricks - FAQ for S1M Submissions (PDF)
  • TETC Special Issue/Section Proposal Information Rules (PDF)
  • Beginning in 2015, IEEE Transactions on Emerging Topics in Computing has moved to our hybrid open access publishing model. Authors can now select between either Traditional manuscript submission or Open Access (author-pays OA) manuscript submission. Learn more.
  • A Welcome Letter from Thomas M. Conte (PDF)


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Call for Papers

Technical Tracks

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IEEE Transactions on Emerging Topics in Computing (TETC) seeks original manuscripts for submission under Technical Tracks. In a track the technical contents of a submitted manuscript must be of an emerging nature and fall within the scope and competencies of the Computer Society. Manuscripts not abiding by these specifications will be administratively rejected. The topics of interest for the Technical Tracks are as follows:

  • Enterprise Computing Systems
  • Computational Networks
  • Hardware and Embedded System Security
  • Educational Computing
  • High Performance Computing
  • Next Generation Wireless Computing Systems
  • Computer System Security
  • Emerging Hardware for Computing

Submitted articles must describe original research which is not published or currently under review by other journals or conferences. Extended conference papers should be identified in the submission process and have considerable novel technical content; all submitted manuscripts will be screened using a similarity checker tool. As an author, you are responsible for understanding and adhering to our submission guidelines. You can access them at the IEEE Computer Society web site, Please thoroughly read these before submitting your manuscript.

Please submit your paper to Manuscript Central at and select the "Technical Track" option in the drop-down menu for "Manuscript Type".

Please address all other correspondence regarding this Call For Papers to Cecilia Metra EIC of IEEE TETC,

Special Issue on eGovernment Research, Management and Innovation

Extended submission deadline: November 1, 2018. View PDF.

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