Digital coherent transmission technology
An advanced optical transmission method that uses polarity multiplexing, phase modulation, and other modulation techniques to increase frequency utilization efficiency, and combines coherent reception and digital signal processing to greatly increase reception sensitivity.
 Dispersion-shifted fiber in L-band
Dispersion-shifted fiber (DSF) is a type of single-mode optical fiber that is tailored to shift the zero-dispersion wavelength from 1,310 nm to 1,550 nm, a wavelength in which the transmission loss is smaller. It is used in long-haul transmissions.The L-band is the optical wavelength range of 1,565 nm to 1,625 nm used in WDM transmissions over DSF.
Fujitsu is the leading Japanese information and communication technology (ICT) company offering a full range of technology products, solutions and services. Over 170,000 Fujitsu people support customers in more than 100 countries. We use our experience and the power of ICT to shape the future of society with our customers. Fujitsu Limited (TSE:6702) reported consolidated revenues of 4.5 trillion yen (US$54 billion) for the fiscal year ended March 31, 2012. For more information, please see http://www.fujitsu.com.
All other company or product names mentioned herein are trademarks or registered trademarks of their respective owners. Information provided in this press release is accurate at time of publication and is subject to change without advance notice.
Date: 21 June, 2012
Company: Fujitsu Limited, , , , , , , , , ,
Share this page