Won Kyu Lee

Title: Innovations of Won Kyu Lee

Introduction

Won Kyu Lee is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of optical and medical technologies. With a total of 2 patents, his work showcases a blend of innovation and practical application.

Latest Patents

One of his latest patents is the "Discretely ITU-T channel grid wavelength tunable single longitudinal mode erbium-doped fiber ring laser." This invention provides a fiber ring laser capable of obtaining a back-up laser light and standard light with a wavelength continuously tuned in a single mode. The laser operates with equal spacing of 12.5 GHz, 25 GHz, 50 GHz, or 100 GHz, as recommended by ITU-T Recommendations G. 692 & G. 694.1 in both C-band and L-band. The design utilizes a fiber tunable etalon filter, an air gap etalon filter, and a saturable absorber within an optical fiber laser resonator. This innovation allows for the generation of laser light with a wavelength tuned by more than 70 nm, excellent output power flatness, and a source spontaneous emission ratio exceeding 70 dB across 361 channels.

Another significant patent is for "Biocompatible metallic materials grafted with biologically active compounds and preparation thereof." This invention involves surface-modified medical metallic materials that are prepared by coating a gold or silver thin layer onto a base metal. A polyfunctional sulfur compound is then adsorbed onto this layer, allowing for the chemical bonding of biologically active materials such as heparin or estradiol. These advancements significantly improve antithrombogenicity and biocompatibility, making the materials suitable for various implants, including stents and artificial cardiac valves.

Career Highlights

Won Kyu Lee has worked with prestigious institutions such as the Korea Institute of Science and Technology and the Korea Research Institute of Standards and Science. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

He has collaborated with notable colleagues, including Young Ha Kim and Ki Dong Park. Their joint efforts have further advanced the research and development of innovative solutions in their respective fields.

Conclusion

Won Kyu Lee's contributions to the fields of optical and medical technologies highlight his innovative spirit and dedication to improving existing technologies