Richard K DeFreez

Title: Innovations of Richard K DeFreez

Introduction

Richard K DeFreez is a notable inventor based in Hillsboro, Oregon. He has made significant contributions to the field of semiconductor laser technology. With a total of three patents to his name, his work has advanced the capabilities of laser arrays.

Latest Patents

DeFreez's latest patents include the "Longitudinally Coupled Surface Emitting Semiconductor Laser Array" and the "Two-Dimensional Phase-Locked Surface Emitting Semiconductor Laser Array." The first patent describes a coherent, surface emitting semiconductor laser array that utilizes focused ion beam micromachining to create parabolic mirrored surfaces. This design allows for longitudinal injection coupling of diode laser pairs, resulting in coherent laser energy being emitted efficiently. The second patent expands on this concept by introducing a two-dimensional phase-locked array, which enhances coupling across the array's extent. This innovation allows for high-power, coherent laser energy to be reflected normally away from the surface of the monolithic structure.

Career Highlights

Richard K DeFreez is associated with the Oregon Graduate Center, where he has contributed to research and development in semiconductor technologies. His work has been instrumental in pushing the boundaries of laser technology, making significant strides in the field.

Collaborations

DeFreez has collaborated with notable colleagues, including Joseph Puretz and Richard A Elliott. Their combined expertise has fostered advancements in semiconductor laser applications.

Conclusion

Richard K DeFreez's innovative work in semiconductor laser technology has led to significant advancements in the field. His patents reflect a deep understanding of laser systems and their applications. His contributions continue to influence the development of coherent laser technologies.