Louis B Allard

Title: Louis B. Allard: Innovator in Polarization Technology

Introduction

Louis B. Allard is a notable inventor based in Ottawa, Canada. He has made significant contributions to the field of optical technology, particularly in polarization control. With a total of 3 patents to his name, Allard's work has advanced the understanding and application of polarization in photonic devices.

Latest Patents

One of Allard's latest patents is a **Polarization Controller**. This invention comprises means for generating linearly polarized light and at least one liquid crystal cell. A preferred embodiment of the invention includes a linear polarizer and two liquid crystal cells. In this embodiment, the polarization direction of the polarizer and the orientation of the fast axis of the liquid crystal cells are arranged to transform linearly polarized light into any state of polarization at the output of the second liquid crystal cell. This invention provides full coverage of the Poincaré sphere.

Another significant patent is for **Polarization Dependent Loss Measurement in Photonic Devices**. This patent outlines a method for calibrating an apparatus to measure the polarization dependent loss of an optical device. The process involves generating a set of nominal polarization states of incident light, passing it through a polarization rotator, and measuring the transmission characteristics through a standard optical component. The calculated polarization dependent loss values are then processed to minimize aggregate error, allowing for accurate measurement of unknown optical devices.

Career Highlights

Louis B. Allard is currently associated with JDS Uniphase Corporation, a company known for its innovations in optical technology. His work at the company has allowed him to explore and develop advanced solutions in polarization technology.

Collaborations

Throughout his career, Allard has collaborated with notable colleagues, including Jonathan Paradis and John Martinho. These collaborations have contributed to the successful development of his patents and innovations.

Conclusion

Louis B. Allard's contributions to polarization technology have made a significant impact in the field of optics. His innovative patents and work at JDS Uniphase Corporation highlight his role as a leading inventor in this specialized area.