Company Filing History:
Years Active: 1999-2002
Title: Innovations of James G Welker
Introduction
James G Welker is a notable inventor based in Woodland Hills, CA (US). He has made significant contributions to the field of fiber optic technology, holding 2 patents that showcase his expertise and innovative spirit. His work has had a profound impact on the performance and reliability of fiber optic gyroscopes.
Latest Patents
Welker's latest patents include "Automatic gain control of a closed loop fiber optic gyroscope using non-linear control laws." This invention involves a closed loop gain circuit that controls the gain of a variable gain amplifier, ensuring a stable automatic gain control (AGC) response regardless of the actual gain level. The amplifier is designed to amplify electrical signals output from a fiber optic gyroscope. Additionally, a perturbation injection circuit provides a perturbation signal to a phase modulator connected to the fiber optic gyro, while a perturbation compensation circuit applies compensation signals to reduce the magnitude of the perturbation in the amplified signal output.
Another significant patent is the "Method for improving the performance of fiber-optic gyros by calculating." This method enhances the performance of a fiber-optic gyro by utilizing counter-propagating light beams from a broadband source in an optical fiber configured as a coil. The invention focuses on determining the interferometer output light intensity and calculating the error attributable to the use of a broadband light-beam source, ultimately making the bias in the output of a fiber-optic gyro independent of the Sagnac fringe number.
Career Highlights
Throughout his career, Welker has worked with prominent companies such as Northrop Grumman Corporation and Litton Systems, Inc. His experience in these organizations has contributed to his development as an inventor and has allowed him to collaborate on various innovative projects.
Collaborations
Welker has had the opportunity to work alongside talented individuals, including Daniel A Tazartes and John G Mark. These collaborations have further enriched his work and have led to advancements in fiber optic technology.
Conclusion
James G Welker's contributions to the field of fiber optics through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and pave the way for future developments.