Development of 40 Gb/s Test Capability
Project Award Date: 01-01-2001
During the past decade, tremendous advances have been made in the development of high-speed DWM optical systems and networks. To make full use of the optical bandwidth provided by the fiber, WDM channel count has been increased from 4 to 160 in a single fiber and the data rate per channel has also been increased from 622 Mb/s to 10 Gb/s in many commercial optical systems. To further increase the optical bandwidth efficiency, 40 Gb/s optical systems are been developed by several industrial leaders and will be in the commercial market very soon.
The impact of the upcoming 40 Gb/s (OC-768) optical systems to telecommunication service providers, such as Sprint, will be tremendous. On one hand, OC-768 may greatly increase the optical bandwidth efficiency and increase the optical network capacity. But on the other hand, high-speed TDM systems like OC-768 will suffer more from fiber chromatic dispersion, PMD, and fiber nonlinearity compared to OC192 and OC48. Precise dispersion compensation, maybe in the per-channel base, will be required; and the system performance will be more sensitive to fiber types than ever.
A good understanding in 40 Gb/s optical systems will help Sprint in the decision-making process for the technical planning and integration.
The goal of this research it to develop basic capabilities in support of 40 Gb/s optical signal transmission, transport, and reception to support future research thrusts requiring this capability.
We will (1) develop requirements for a 40 Gb/s testbed, (2) design a 40 Gb/s testbed consistent with the available budget, (3) assemble and test the 40 Gb/s testbed, and (4) perform comparisons between different 40Gb/s optical system technologies.
Primary Sponsor(s): Sprint