Wan Seok Seo

Title: Wan Seok Seo: Optical Communications Inventor

Introduction

Wan Seok Seo is an inventor based in Taejon, South Korea. His patent work focuses on optical communications, including optical switching and monitoring wavelength-division-multiplexed signals. He is associated with the Electronics and Telecommunications Research Institute and has 2 patents.

Latest Patents

Seo’s listed patents address two challenges in optical networks: routing signals while limiting interference and identifying channel information efficiently.

- **Optical gate based optical space division switch.** This invention uses optical gates in a two-stage arrangement to route signals from input ports to a desired output port while avoiding internal collisions. Its splitting, selective amplification, and coupling sections help reduce crosstalk and improve the signal-to-noise ratio.

- **Apparatus and method for detecting channel information from WDM optical signal by using wavelength selective photo detector.** This invention monitors wavelength-division-multiplexed optical signals using conventional and wavelength-selective photodetectors. By normalizing their electrical outputs and consulting a lookup table, the system can determine the number and locations of channels in a simple, rapid, and economical way.

Career Highlights

Seo’s work reflects an emphasis on practical optical-network technologies. His inventions address signal routing, crosstalk reduction, and channel monitoring, all of which support the operation and management of optical communication systems. The Electronics and Telecommunications Research Institute is among the organizations associated with his career.

Collaborations

Seo’s named collaborators include Byeong Ho Yoon and Joon Hak Bang.

Conclusion

Wan Seok Seo’s patents focus on improving optical communication networks through more reliable signal switching and efficient WDM channel detection.