Qing Deng

Title: Innovations by Qing Deng in Vertical Cavity Surface Emitting Lasers

Introduction

Qing Deng is a notable inventor based in San Jose, CA, who has made significant contributions to the field of vertical cavity surface emitting lasers (VCSELs). With a total of 4 patents, his work focuses on enhancing the reliability and performance of VCSEL devices.

Latest Patents

One of his latest patents is titled "Reliability-enhancing layers for vertical cavity surface emitting lasers." This invention describes VCSELs that include reliability-enhancing layers designed to perform specific functions at critical locations within the VCSEL structure. These layers help reduce or prevent defect formation and migration that could degrade VCSEL performance. They achieve this by increasing optical absorption in the mirror stacks or by improving the electro-optic properties of the active region. The reliability-enhancing layers are configured to perform functions such as gettering, strain balancing, and defect suppression, ultimately enhancing the reliability and performance of VCSEL devices.

Another significant patent is the "Wide temperature range vertical cavity surface emitting laser." This VCSEL module is designed to operate efficiently across a wide temperature range without compromising its lifetime or requiring excessive drive current. The module includes a heater and a temperature sensor to maintain a minimum temperature within the efficient operation range of the VCSEL. This design reduces the current required for operation and extends the overall lifetime of the VCSEL while ensuring signal quality remains unaffected.

Career Highlights

Qing Deng has worked with prominent companies in the technology sector, including Finisar Corporation and Agilent Technologies, Inc. His experience in these organizations has contributed to his expertise in the development of advanced laser technologies.

Collaborations

Some of his notable coworkers include John Herniman and Ruldolf J Hofmeister, who have collaborated with him on various projects related to VCSEL technology.

Conclusion

Qing Deng's innovative work in the field of vertical cavity surface emitting lasers has led to advancements that enhance the reliability and performance of these devices. His contributions are significant in the ongoing development of laser technology.