ITTC Project

Bi-directional Optical Recirculating Loop for Multi Channel WDM Applications

Project Award Date: 02-01-1999


Optical fiber recirculating loop has been used widely in fiber optical communication labs. It is a very important way to evaluate transmission performance of both ultra long distance submarine fiber-optic systems and wideband terrestrial fiber-optic systems without actually using many spans of fibers and optical amplifiers. To date, all of the optical fiber recirculating loop test beds were designed for unidirectional operation. To evaluate transmission performance of bi-directional optical systems, the development of a bi-directional, fiber-optic recirculating loop test bed is indispensable.

We investigate and optimize the configurations of bi-directional, fiber-optic recirculating loops to construct a well packaged, user-friendly, bi-directional loop test fundation that can be used in high-speed bi-directional SONET/SDH fiber-optic transmission experiments.


Faculty Investigator(s): Rongqing Hui (PI)

Project Sponsors

Primary Sponsor(s): Nortel Broadband Networks

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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