Patents by Inventor Yong-Won Song

Yong-Won Song has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Devices and applications based on tunable wave-guiding bragg gratings with nonlinear group delays

Publication number: 20030086647

Abstract: Techniques, devices, and systems for generating tunable dispersions to control or compensate for dispersions in optical signals by using wave-guiding grating elements with nonlinear group delays.

Type: Application

Filed: June 13, 2002

Publication date: May 8, 2003

Inventors: Alan E. Willner, Yong-Won Song, Joshua E. Rothenberg, S.M. Reza Motaghian Nezam
Compensation for polarization-mode dispersion in multiple wavelength-division multiplexed channels without separate composition for each individual channel

Publication number: 20010055437

Abstract: Techniques for compensating for PMD in multiple WDM channels by processing all WDM channels in the same manner without demultpliexing the channels. A feedback control is provided to decrease the worst-case power penalty and the channel fading probability by optimizing over the entire group of WDM channels.

Type: Application

Filed: March 6, 2001

Publication date: December 27, 2001

Inventors: Reza Khosravani, Steven A. Havstad, Yong-Won Song, Paniz Ebrahimi, Alan E. Willner

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Devices and applications based on tunable wave-guiding bragg gratings with nonlinear group delays

Compensation for polarization-mode dispersion in multiple wavelength-division multiplexed channels without separate composition for each individual channel