Location History:
- Woburn, MA (US) (2000)
- Lexington, MA (US) (2000 - 2005)
Company Filing History:
2 out of 3 
1 out of 75 
3 out of 832,761 Years Active: 2000-2005
Title: Zhijiang Hang: Innovator in Laser Technology
Introduction
Zhijiang Hang is a prominent inventor based in Lexington, MA (US), known for his significant contributions to laser technology. With a total of five patents to his name, he has made remarkable advancements in high-power surface emitting lasers and optical pickup systems.
Latest Patents
One of his latest patents is titled "High-power surface emitting laser and fabrication methods thereof." This invention involves producing high-powered lasers of various wavelengths through a specific process that includes a substrate with an epi structure, a gain region with multiple quantum wells, and a mirror stack. The process also entails dividing the conductive layer into central and peripheral areas, attaching a conductive plate, thinning the substrate for better light passage, and attaching an electrode to the substrate remnant.
Another notable patent is the "Monolithic VCSEL-based optical pickup and servo control device." This invention features a VCSEL-based optical pickup system designed for optical recording media. It includes a retaining member, multiple VCSELs for emitting laser beams, detectors for receiving reflected beams, and a stepped micro-mirror for directing laser beams. The system is designed to enhance the efficiency of optical recording and retrieval processes.
Career Highlights
Zhijiang Hang has worked with various companies, including New Dimension Research Instrument, Inc. His work has significantly impacted the field of laser technology, particularly in the development of innovative optical systems.
Collaborations
Throughout his career, Zhijiang has collaborated with notable individuals such as Victor Lazarev and Robert H Webb. These collaborations have contributed to the advancement of his research and inventions.
Conclusion
Zhijiang Hang's contributions to laser technology through his patents and collaborations highlight his role as a leading inventor in the field. His innovative work continues to influence advancements in optical systems and laser applications.