Milpitas, CA, United States of America

Yiqiang Li

This inventor holds 2 USPTO granted patents. Top assignee: Optical Coating Laboratory, Inc.. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yiqiang Li. Retrieved from https://idiyas.com/inventor/yiqiang-li-7rnfao9v

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 2

Forward Citations = 16(Granted Patents)


Company Filing History:


Years Active: 2002

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2 patents (USPTO):Explore Patents

Title: Yiqiang Li: Innovator in Optical Technology

Introduction

Yiqiang Li is a prominent inventor based in Milpitas, CA, known for his contributions to optical technology. With a total of 2 patents, he has made significant advancements in the field of optical communication systems.

Latest Patents

One of his latest patents is the Optical Wedge Switch. This innovative optical switch utilizes a refractive optical element to direct a light beam in selected directions upon operation of the switch. The design features an optical wedge that has a first portion transmitting a light beam in one direction and a second portion transmitting it in another direction. This configuration is less sensitive to misalignment compared to reflective elements. Additionally, the optical wedge can be combined with wavelength-selective filters to provide channel DROP and/or ADD functions with high isolation.

Another notable patent is the Integrated Modular Optical Amplifier. This assembly integrates wavelength-selective input and output filters with a doped fiber optical amplifier stage. The integration allows for a modular amplifier suitable for wavelength division multiplexed optical communication systems. A center tap provides access to the selected light signal after the first amplifier stage, enabling signal modification before it returns to a second amplifier stage. Furthermore, a pump interconnect allows both amplifier stages to operate from a single pump light source.

Career Highlights

Yiqiang Li works at Optical Coating Laboratory, Inc., where he continues to develop innovative optical solutions. His work has significantly impacted the field of optical communication, enhancing the efficiency and functionality of optical systems.

Collaborations

He collaborates with talented coworkers, including Kevin J Zhang and Michael A Scobey, contributing to a dynamic and innovative work environment.

Conclusion

Yiqiang Li's contributions to optical technology through his patents and work at Optical Coating Laboratory, Inc. highlight his role as a key innovator in the field. His advancements continue to shape the future of optical communication systems.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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