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Sumitomo Electric Receives IEICE Young Researcher's Award

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July 3, 2018

A group of researchers from Sumitomo Electric Industries, Ltd. received a 2017 Young Researcher's Award from the Institute of Electronics, Information and Communication Engineers (IEICE) in recognition of its presentation on photodetectors for coherent transmission.*

This prestigious award was given to only a few excellent young researchers under the age of 33 from among the authors of the 3,209 papers presented to the General Conference in March and the Society Conference in September 2017 (about 1.5% of those in this age group).

The award recognized the development achievements of highly functional semiconductor photodetectors, which are essential for the realization of ultrahigh-speed and high-capacity optical fiber communication systems in the future, published under the following titles: Wide Bandwidth and high Responsivity Operation of InP-based p-i-n Photodiode Array Monolithically Integrated with 90° Hybrid for Over 400 Gbps Coherent Transmission Systems (during the General Conference) and InP-based Waveguide Photodetector Monolithically Integrated with 90˚ Hybrid Having High-responsivity Characteristics over the L-band Wavelength Range (during the Society Conference).

Encouraged by the award, Sumitomo Electric will continue its research and development of excellent optical semiconductor communication devices, anticipating the future requirements of our customers and society as a whole.

The award winner, Takuya Okimoto (Sumitomo Electric Device Innovations, Inc.) and coauthors.

The award winner, Takuya Okimoto (Sumitomo Electric Device Innovations, Inc.) and coauthors.

  • Photodetector for Coherent Transmission

    Photodetector for Coherent Transmission

  • Award Certificate

    Award Certificate


* Photodetector for Coherent Transmission:
A coherent transmission system uses the interference of optical waves to enable high-capacity transmission over 100 Gbps in long-distance optical communications of more than 100 km. Conventional optical transmission uses intensity signals that turn a light on and off to express 1 and 0, while coherent transmission uses phase signals that shift optical phases to change signal waves. Intensity signals are directly detectable and convertible to electric signals by photodiodes, while phase signals are not. Therefore, our photodetector for coherent transmission uses an integrated chip developed under our proprietary semiconductor integration technique to have an optical function that interferes with the signal light using another light to convert phase signals to intensity signals directly detectable by photodiodes.

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