Joseph D DesChamps

Title: Joseph D DesChamps: Innovator in Avalanche Photodiode Technology

Introduction

Joseph D DesChamps is a notable inventor based in California, recognized for his contributions to the field of photonics. He holds a patent that significantly enhances the functionality of avalanche photodiodes (APDs), which are crucial in various applications, including medical imaging and telecommunications.

Latest Patents

DesChamps' patent, titled "Active quench circuit and reset circuit for avalanche photodiode," focuses on an innovative active quench circuit designed to interrupt the current flow in an APD operating in Geiger mode. This invention not only increases the speed of quenching but also reduces the time required to restore the APD voltage above the breakdown voltage. The circuit features a small inductor that isolates the reset circuit from the APD during the initial discharge, providing a current pulse into the APD immediately after quenching to recharge the diode. Additionally, the reset circuit includes a diode assembly that enhances the speed of the avalanche current pulse while preventing oscillation or latching under specific operating conditions. This design presents a low impedance to the APD during reset and is less sensitive to APD capacitance compared to prior art circuits. DesChamps holds 1 patent.

Career Highlights

Joseph D DesChamps has made significant strides in his career, particularly through his work at EG&G, Inc. His innovative approach to circuit design has positioned him as a key figure in the development of advanced photonic technologies.

Collaborations

DesChamps has collaborated with Henri P Dautet, further enhancing the scope of his work and contributing to the advancement of technology in their field.

Conclusion

Joseph D DesChamps is a distinguished inventor whose work on the active quench circuit for avalanche photodiodes has made a lasting impact on the industry. His innovative solutions continue to pave the way for advancements in photonic applications.