Stephen L Palfrey

Title: The Innovations of Stephen L. Palfrey

Introduction

Stephen L. Palfrey is a notable inventor based in Robbinsville, NJ (US). He has made significant contributions to the field of semiconductor technology. His work primarily focuses on improving the performance of semiconductor diode lasers.

Latest Patents

Palfrey holds a patent for a semiconductor diode laser that features smaller beam divergence. This innovative design includes a distributed feedback semiconductor diode laser with a substrate of n-type conductivity gallium arsenide. The structure comprises a channel along one surface of the substrate, which is filled with a first clad layer of n-type gallium aluminum arsenide. The design also incorporates a thin active layer of undoped aluminum gallium arsenide, a spacer layer of p-type conductivity aluminum gallium arsenide, and a grating layer that enhances the laser's performance. The result is a diode laser that produces an output beam with a relatively low divergence angle of about 27 degrees.

Career Highlights

Stephen L. Palfrey has had a distinguished career at Eastman Kodak Company, where he has been instrumental in advancing semiconductor technologies. His innovative approaches have led to improvements in laser performance, which are crucial for various applications in the industry.

Collaborations

Palfrey has collaborated with John C. Connolly, contributing to the development of advanced semiconductor technologies. Their partnership has fostered innovation and has led to significant advancements in their field.

Conclusion

Stephen L. Palfrey's contributions to semiconductor technology, particularly in the area of diode lasers, highlight his role as a key innovator in the industry. His patent for a semiconductor diode laser with reduced beam divergence showcases his commitment to enhancing laser performance.