Lianhua Ji

Title: Lianhua Ji: Innovator in Optical Technologies

Introduction

Lianhua Ji is a notable inventor based in Boulder, CO, who has made significant contributions to the field of optical technologies. With a total of 2 patents, Ji's work focuses on advancements that enhance the functionality and efficiency of optical devices.

Latest Patents

One of Ji's latest patents is for an optical attenuator, which features a multiple quantum well structure (MQWS) and a feedback system that regulates the attenuation of the MQWS. This invention includes various embodiments, such as integrating the MQWS into a photo intrinsic diode or a self-electro-optic effect device (SEED). The design allows for multiple MQWSs arranged in a serial stack or parallel plane, facilitating light passage through prisms. Additionally, the patent describes a method for combining the attenuator with an erbium-doped fiber amplifier (EDFA) to achieve a flat gain across different wavelengths. Another significant patent involves a method for operating a liquid crystal cell using DC-balancing techniques. This method enhances system brightness by displaying an inverse image while preventing visibility, thus optimizing the electric fields applied to the liquid crystal material.

Career Highlights

Throughout his career, Lianhua Ji has worked with several companies, including Displaytech, Inc. and Photonport Technologies, Inc. His experience in these organizations has contributed to his expertise in optical technologies and innovation.

Collaborations

Ji has collaborated with notable individuals in the field, including Jiuzhi Xue and Mark A Handschy. These partnerships have likely fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Lianhua Ji's contributions to optical technologies through his patents and collaborations highlight his role as an influential inventor in the industry. His innovative approaches continue to shape advancements in optical devices and systems.