Fremont, CA, United States of America

Xiangjun Zhao

This inventor holds 26 USPTO granted patents and 1 published patent application and 11 EPO patents, primarily in Optical Networking. Top assignee: Google Inc.. Active years: 2015-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Xiangjun Zhao. Retrieved from https://idiyas.com/inventor/xiangjun-zhao

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

USPTO Granted Patents = 26 

% Patents Active = 100.0

 

Average Co-Inventor Count = 5.6

ph-index = 4

Forward Citations = 57(Granted Patents)


Company Filing History:


Years Active: 2015-2026

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Areas of Expertise:
Ultra-Wideband Ranging
Tunable Laser
Wavelength Tuning
Optical Network Unit
Burst-Mode Laser
TWDM Passive Optical Network
Laser Driving Circuit
In-Field Calibration
Feeder Fiber Redundancy
Common Cathode Laser
Gain Clamped EDFA
PON Systems Upgrade
26 patents (USPTO):Explore Patents

Title: **Innovative Contributions of Xiangjun Zhao in Laser Technology**

Introduction:

Xiangjun Zhao, based in Fremont, CA, is a notable inventor with an impressive portfolio of 25 patents to his name. His work primarily focuses on advancements in laser technology, particularly in the areas of tunable lasers and related electrical circuits.

Latest Patents:

Among his latest patents is a breakthrough titled **Switching Circuit for Burst-Mode Tunable Laser**. This patent outlines a method for tuning a tunable laser by delivering bias currents to specific components while responding to burst mode signals that indicate the laser's operational state. The invention details how to manage bias currents to optimize performance during both burst-on and burst-off states.

Another significant patent is **Wavelength Drift Suppression for Burst-Mode Tunable EML Laser**. This invention describes a method for biasing a tunable laser during its operational phases by utilizing controlled bias currents for different sections of the laser. Zhao’s ingenious approach seeks to enhance the stability and performance of lasers while they operate in a burst mode.

Career Highlights:

Xiangjun Zhao’s contributions to technology have been recognized through his extensive patent portfolio. He works at Google Inc., where he continues to push the boundaries of what is possible in laser technology. His inventions have potential applications across various sectors, including telecommunications and data transfer industries.

Collaborations:

Throughout his career, Zhao has collaborated with notable colleagues such as Cedric Fung Lam and Changhong Joy Jiang. These collaborations have fostered a creative environment, leading to innovative solutions in the realm of laser technology and electronic circuits.

Conclusion:

Xiangjun Zhao exemplifies the spirit of innovation and dedication to advancing technology. His work on tunable lasers not only highlights his inventive prowess but also showcases his commitment to enhancing technological capabilities. As advancements in laser technology continue to evolve, inventors like Zhao will undoubtedly play a pivotal role in shaping the future.

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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