Nonlinear optical fiber
A single-mode optical fiber that has a distinctive structure that increases the nonlinear optical effect. It produces ten times the nonlinear optical effect of conventional optical fibers. In the future, it is expected that the performance will be enhanced by ten- to as much as one hundred-fold above current levels by developing the fiber's structure and material.
 Optical amplitude noise
Spontaneous emission noise generated when using an optical amplifier to amplify optical signals.
One trillionth of a second.
 Optical parametric amplification effect
A type of nonlinear optical effect in which when a strong pump optical wave and signal optical wave are input into fiber, a new signal optical wave and idler wave are output. During the process, the optical signal power is amplified.
 Differential phase shift keying(DPSK)
A phase modulation scheme in which the phase of a signal is modulated by 180 degrees corresponding to the digital data of "0" or "1". In this scheme, the phase difference between two successive signals carries data.
Founded in 1968 as a wholly owned subsidiary of Fujitsu Limited, Fujitsu Laboratories Limited is one of the premier research centers in the world. With a global network of laboratories in Japan, China, the United States and Europe, the organization conducts a wide range of basic and applied research in the areas of Multimedia, Personal Systems, Networks, Peripherals, Advanced Materials and Electronic Devices.
For more information, please see: http://jp.fujitsu.com/group/labs/en/
Research and development activities at the Heinrich-Hertz-Institut (HHI) are concentrated to expand the principles of information technology and to demonstrate new applications for new products in partnership with the industry.
The core competencies of HHI are in the areas
• Photonic Networks and Systems (highly capacitive and flexible signal transmission)
• Broadband Mobile Communications (resource management for broadband applications for UMTS and beyond (3GPP LTE))
• Photonic Components (customized active III-V semi-conducting components)
• Image Processing (encoder / decoder for video and audio transmission)
• Interactive Media - Human Factors (2D and 3D display technologies; man machine interface)
We put science into action!
For more information, please see: http://www.hhi.fraunhofer.de/english/
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Date: 06 March, 2008
City: Kawasaki, Japan and Berlin
Company: Fujitsu Laboratories Ltd., Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, , , ,