ITTC Project


PMD Monitoring in Live DWDM Optical Networks

Project Award Date: 06-13-2007



Description

In a previous project, ITTC researchers assembled a Polarization Mode Dispersion (PMD) measurement system into a portable package that permitted field measurements. The measurements provided valuable insights into PMD in the Sprint Network, and gave Sprint a non-intrusive way to measure PMD. This project will further work on PMD measuring devices, reducing the complexity of the current device and increasing the detection efficiency.

PMD in optical fibers or systems is a polarization-dependent propagation delay, measured as the Differential Group Delay (DGD) between the fastest and slowest propagation modes. PMD results in increased distortion and bit error rates in optical communications systems. PMD must be well characterized as Sprint moves to higher transmission rates on optical fiber systems in order to properly design the system interconnections. Non-Intrusive PMD measurements on live DWDM systems are becoming increasingly important as ultra-long haul and 40 Gb/s options over installed systems are deployed.


Investigators

Faculty Investigator(s): Rongqing Hui (PI), Christopher Allen

Student Investigator(s): Sathyanarayanan Sundhararajan


Project Sponsors


Primary Sponsor(s): Sprint


Partner with ITTC

The Information and Telecommunication Technology Center at the University of Kansas has developed several assistance policies that enhance interactions between the Center and local, Kansas, or national companies. 

ITTC assistance includes initial free consulting (normally one to five hours). If additional support is needed, ITTC will offer one of the following approaches: 

Sponsored Research Agreement

Individuals and organizations can enter into agreements with KUCR/ITTC and provide funds for sponsored research to be performed at ITTC with the assistance of faculty, staff and students.

Licensing and Royalty/Equity Agreement

An ITTC goal is the development of investment-grade technologies for transfer to, and marketing by, local, Kansas, and national businesses. To enhance this process, the Center has developed flexible policies that allow for licensing, royalty, and equity arrangements to meet both the needs of ITTC and the company.

Commercialization Development

Companies with a technology need that can be satisfied with ITTC's resources can look to us for assistance. We can develop a relationship with interested partners that will provide for the development of a technology suited for commercialization.

ITTC Resource Access

ITTC resources, including computers and software systems, may be made available to Kansas companies in accordance with the Center's mission and applicable Regents and University policies.

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