Qingyu Li

Title: Innovations by Qingyu Li

Introduction

Qingyu Li is an accomplished inventor based in Cupertino, CA. He has made significant contributions to the field of optical technologies, holding a total of 5 patents. His work focuses on advanced optical devices that enhance the functionality and efficiency of communication systems.

Latest Patents

One of his latest patents is titled "Reconfigurable port arrays for wavelength selectable switch." This invention involves a reconfigurable polarization rotator made up of an array of very small liquid crystal (LC) cells, known as microcells. Each microcell can be controlled independently by a separate electrical voltage input, allowing for precise polarization rotation. This technology enables the formation of polarization rotator windows that can be adjusted based on the configuration of the fiber array being used.

Another notable patent is "Tunable optical wedge for beam steering." This invention features a voltage-controlled optical wedge created by establishing an adjustable voltage gradient along a large-sized LC cell. By applying bias voltages at opposing sides of the cell, a continuous phase variation is achieved, which corresponds to specific beam steering angles. This allows for active and controllable beam steering, making it suitable for various applications.

Career Highlights

Qingyu Li is currently employed at II-VI Delaware, Inc., where he continues to innovate in the field of optical technologies. His work has been instrumental in advancing the capabilities of optical devices used in communication systems.

Collaborations

He collaborates with talented coworkers, including Guomin Jiang and Helen Chen, who contribute to the innovative environment at II-VI Delaware, Inc.

Conclusion

Qingyu Li's contributions to optical technologies through his patents demonstrate his expertise and commitment to innovation. His work continues to influence the development of advanced communication systems, showcasing the importance of inventors in driving technological progress.