Innovation Sphere


  • Lim Nguyen



Project TitleSpatial Mode Filtering Method to Mitigate Modal Dispersion and Increase Data Rate in a Step-Index Plastic Optical Fiber Link
Track Code2017-015
Short Description

This technology decreases modal dispersion in step-index plastic optical fiber to provide high speed networks over a short range.

Tagsinformation technology, data rate increase, modal dispersion, optical fiber
Posted DateApr 25, 2017 10:34 AM


Lim Nguyen

Technology Description

Step-index plastic optical fibers (SI-POF) are not only less expensive and more flexible than silica optical fibers, they are also immune to electromagnetic interference and are easy to install. However, data transfer rates over SI-POF networks are lower than that of silica optical fiber networks. Researchers at the University of Nebraska-Lincoln have developed a method to increase data transfer rates in SI-POF networks by filtration of higher order modes through a capillary tube. This effective and low cost technique to reduce the dispersion loss enables gigabit Ethernet over short range SI-POF networks.

Inventive Feature(s)

• Use of capillary tube to filter higher order modes


•  Improved data transfer in POF networks
•  Low cost
•  Easy to implement
•  Ability to retrofit existing networks

Potential Application(s)

•  High-speed home networking
•  Automobiles
•  Aviation

Intellectual Property

Patent Application Filed


Naji Ali Albakay and Lim Nguyen,“Achieving 1 GBPS Over Step-Index Plastic Optical Fiber by controlling the effective Numerical Apertures”, Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP), 2015 IEEE DOI: 10.1109/AVFOP.2015.7356618, 10, 333-339 (2016)

Related Technologies

Licensing Contact

Zane Gernhart, Ph.D.
Technology Manager
Phone: 515-408-4685

About NUtech Ventures

NUtech Ventures is the non-profit technology commercialization affiliate of the University of Nebraska-Lincoln. Our mission is to facilitate the commercialization and practical use of innovations generated through the research activities at the University of Nebraska.


File Name Description
Capillary Tube None Download
Tech Brief 2017-015 None Download