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Press Release

Successful Circuit Board Implementation of Chip-scale Optical Transceivers

-Realizing 25 Gbps Transfer Rates between High-Performance LSIs-
September  30,2015
New Energy and Industrial Technology Development Organization (NEDO)
Photonics Electronics Technology Research Association (PETRA)

To realize the creation of optical transceivers for high-performance LSI interconnects, NEDO and Photonics Electronics Technology Research Association (PETRA) developed a new circuit board implementation with the world’s smallest 5mm square chip-scale optical transceivers (optical I/O cores*1) using previously-developed silicon photonics technology*2 installed around high-performance LSIs, as well as high-speed data transmission technology for the effective management of signal reflection and attenuation in response to challenges in data transmission between high-performance LSIs and optical I/O cores. This resulted in high-speed data transmission at rates of 25 Gbps (Gigabits per second)*3 per channel.

Based on the technology, future demonstration tests of large-capacity transmissions of up to 2.4 Tbps (Terabits per second) across the board while connecting high-performance LSIs and keeping power consumption to a ratio of 1/3 or less of that of conventional connections are expected to realize smaller, faster, and more energy-efficient information and communications technology (ICT) equipment such as servers as well as compact and energy-efficient data centers.

  • Photo: Circuit board implementation of chip-scale optical transceivers (optical I/O cores) installed around a high-performance LSI.
    Photo: Circuit board implementation of chip-scale optical transceivers (optical I/O cores)
    installed around a high-performance LSI.

【Glossary】

*1 Optical I/O core
The name of the ultra-small optical transceiver chip using silicon photonics technology named by PETRA.
*2 Silicon photonics technology
A technology for forming a photonics device on a silicon substrate. By using silicon, it enables miniaturization of the optical circuit and makes large-scale integration possible. In addition, it has features such as the creation of fully integrated optical and electronic circuits and the potential of reducing manufacturing costs.
*3 Gbps (gigabits per second)
A unit of measurement for the transmission of data across a communication connection in a computerized system. 1 Gbps represents the transmission of one billion (giga = 1 x 109) bits of data in one second.

For more information, please contact:

NEDO Electronics, Materials Technology and Nanotechnology Department
Mizuno, Haza
TEL: +81-44-520-5211

Photonics Electronics Technology Research Association (PETRA)
TEL: +81-3-5225-2362