Company Filing History:
Years Active: 2007-2008
Title: Innovations of Jeffrey D Bull
Introduction
Jeffrey D Bull is a notable inventor based in Vancouver, Canada, recognized for his contributions to optical technologies. He holds a total of four patents, showcasing his expertise in enhancing mode converters and polarization modulation.
Latest Patents
One of his latest patents is titled "Method and apparatus for enhancing the extinction ratio in mode converters." This invention focuses on optimizing a non-ideal mode converter to achieve performance close to that of an ideal mode converter. The method involves adjusting the input linear polarization to balance the power in the principal modes at the output, maximizing the orthogonality of the output polarization states. Additionally, he has developed an electro-optical mode converter that allows for the adjustment of the input polarization state to enhance mode conversion and extinction ratio.
Another significant patent is the "Passive method and apparatus for inducing mode conversion." This invention describes a waveguide designed for use in polarization mode converters and modulators. It utilizes extrinsic strain to prerotate the principal axes and control birefringence. The invention emphasizes the importance of pre-stressing the waveguide to achieve an ideal orientation of the principal propagation axes.
Career Highlights
Jeffrey D Bull has made substantial contributions to the field of optical engineering through his work at Versawave Technologies Inc. His innovative approaches have led to advancements in the efficiency and effectiveness of optical devices.
Collaborations
Throughout his career, he has collaborated with notable colleagues, including Nicolas August Fleming Jaeger and Hiroshi Kato, further enhancing the impact of his inventions.
Conclusion
Jeffrey D Bull's work exemplifies the spirit of innovation in optical technology, with his patents paving the way for advancements in mode conversion and polarization modulation. His contributions continue to influence the field significantly.