This inventor holds 9 USPTO granted patents. Top assignees: Ac Photonics, Inc., Oplink Communications, Inc., Bay Photonics, Inc.. Active years: 2002-2007.
Company Filing History:
6 out of 7 
2 out of 115 
1 out of 1 Years Active: 2002-2007
Title: Yiqiang Li: Innovator in Optical Technologies
Introduction
Yiqiang Li is a prominent inventor based in San Jose, CA, known for his contributions to optical technologies. With a total of 9 patents to his name, he has made significant advancements in the field of optical multiplexers and demultiplexers.
Latest Patents
Among his latest patents is the "Integrated Optical Multiplexer and Demultiplexer." This innovative apparatus includes a first and second laser diode pair, a polarization rotator, and an output port. It is designed to multiplex distinct light signals emitted from the laser diodes and can also demultiplex an input light beam with multiple channels. Another notable patent is the "Reduced Element Optical Add-Drop Multiplexer," which features a compact design with improved optical isolation and low insertion loss. This device utilizes a 4-port configuration with fibers arranged to optimize signal routing.
Career Highlights
Yiqiang Li has worked with several notable companies, including Ac Photonics, Inc. and Oplink Communications, Inc. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge optical technologies.
Collaborations
Throughout his career, Yiqiang has collaborated with talented individuals such as Yongjian Wang and Yang Sheng. These partnerships have fostered innovation and the development of advanced optical solutions.
Conclusion
Yiqiang Li's work in optical technologies has led to significant advancements in the field, showcasing his expertise and innovative spirit. His contributions continue to influence the industry and inspire future developments.