Company Filing History:
2 out of 701 
1 out of 7 
2 out of 832,912 Years Active: 2000-2005
Title: Karl-Friedrich Klein: Innovator in Optical Waveguide Technology
Introduction
Karl-Friedrich Klein is a notable inventor based in Friedberg, Germany. He has made significant contributions to the field of optical waveguides, holding a total of five patents. His work focuses on improving the performance and efficiency of optical fibers, which are essential for modern communication technologies.
Latest Patents
One of his latest patents is for a fused silica-based optical waveguide and the method for its manufacture. This invention addresses the internal mechanical stresses that occur during the production of optical fibers, which can affect their performance. By selecting the difference in linear thermal coefficients of expansion of the core and sheathing material through appropriate doping, Klein's invention significantly reduces or eliminates these internal stresses. This results in lower attenuation and improved polarization mode dispersion (PMD) values compared to prior art optical waveguides. Another patent involves the development of glass for optical waveguides that have reduced infrared absorption and attenuation coefficients. This glass is composed of silicon and oxygen atoms with higher mass numbers, making it suitable for transmitting high-energy laser light.
Career Highlights
Throughout his career, Karl-Friedrich Klein has worked with various companies, including Deutsche Telekom AG. His innovative approaches have led to advancements in optical technology, making him a respected figure in the field.
Collaborations
Klein has collaborated with notable individuals such as Walter Heitmann and Georg Hillrichs. These partnerships have contributed to the development of his groundbreaking inventions.
Conclusion
Karl-Friedrich Klein's work in optical waveguide technology exemplifies the impact of innovation in communication systems. His patents reflect a commitment to enhancing the efficiency and performance of optical fibers, paving the way for future advancements in the field.