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Fujitsu creates 25Gbps quantum dot laser communication

Posted on Friday, May 21 2010 @ 22:04:23 CEST by


Fujitsu and the University of Tokyo announced world's first quantum dot laser-based 25Gbps data transmission:
Fujitsu Limited, Fujitsu Laboratories Ltd., and the University of Tokyo today announced the world's first quantum dot laser -based 25 Gbps high-speed data transmission. Quantum dot lasers are a type of laser being anticipated as a next-generation semiconductor laser capable of handling high-speed data transmissions while consuming minimal power. As increasing the number of quantum dots is known to improve a quantum dot laser's operation speed, layers of quantum dots with a higher density than conventionally employed were stacked, thereby doubling the laser's operation speed and enabling a significant improvement over previous technologies. This new technology is expected to be employed for optical sources for next-generation high-speed data communications that aim to achieve data transmission speeds of 100 Gbps, ten times faster than current data transmission speeds.

Details of the technology will be presented at the Conference on Lasers and Electro-Optics and the Quantum Electronics and Laser Science Conference (CLEO/QELC 2010), being held from May 16 - 21 in San Jose, U.S. Part of this research belongs to a project contracted to the Photonics Electronics Technology Research Association (PETRA) by the New Energy and Industrial Technology Development Organization (NEDO), while part of the research was carried out under Japan's Ministry of Education, Culture, Sports, Science and Technology's Special Coordination Funds for Promoting Science and Technology. In addition, joint research and development of quantum dot lasers is being pursued through collaboration between Professor Yasuhiko Arakawa's laboratory at the University of Tokyo, Fujitsu, Fujitsu Laboratories, and QD Laser, Inc.
More technical details can be read over here.


 



 

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