Stephen Richard Friberg

Title: The Innovations of Stephen Richard Friberg

Introduction

Stephen Richard Friberg is a notable inventor based in Mountain View, CA. He has made significant contributions to the field of nonlinear optics, holding a total of 4 patents. His work focuses on improving the performance of nonlinear crystals and developing advanced optical detection systems.

Latest Patents

One of Friberg's latest patents is titled "Resonant cavity conditioning for improved nonlinear crystal performance." This invention presents systems and methods to enhance the performance of nonlinear crystals within a resonant cavity. The innovation involves supplying a humidified purge gas to a laser-based illumination source that includes a nonlinear crystal. By adding a small amount of water vapor to a clean, dry purge gas, excessive drying of the nonlinear crystal during storage or operation is prevented. The patent also describes a humidity injection system with at least two parallel flow paths, where one includes a humidity injector and the other does not. The amount of water vapor added is regulated based on the relative flow rate between these paths and measurements of humidity in the resonant cavity.

Another significant patent by Friberg is the "Optical beamsplitter for a polarization insensitive wavelength detector and a polarization sensor." This invention details a wavelength detector that includes a beamsplitter with a wedged back surface. This design reflects incoming optical signals into two paths, where filters—at least one of which varies with the wavelength—are present. The filtered light is detected by a photodetector, and the output electrical signals are log amplified. The log amplified signals are then processed by a difference amplifier, providing an output indicative of the wavelength or polarization of the incident optical signal.

Career Highlights

Throughout his career, Stephen Friberg has worked with several prominent companies, including Lambda Control, Inc. and KLA-Tencor Corporation. His experience in these organizations has contributed to his expertise in optical technologies and innovations.

Collaborations

Friberg has collaborated with notable professionals in his field, including Charles C. Harb and Igor N. Germanenko. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

Stephen Richard Friberg's contributions to nonlinear optics and optical detection systems demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to enhancing technology in significant ways.