Peter Cross

Title: The Innovative Contributions of Peter Cross in Semiconductor Laser Technology

Introduction

Peter Cross, a prominent inventor based in Palo Alto, CA, has made significant contributions to the field of semiconductor laser technology. With a total of six patents to his name, he has been at the forefront of innovations that enhance the effectiveness and efficiency of laser arrays.

Latest Patents

Among his latest patents are two notable inventions:

1. **Method of Forming a Semiconductor Laser**

This patent details a method for creating semiconductor laser arrays characterized by an impurity disordered pattern of waveguides. The invention ensures that lightwaves propagating through adjacent waveguides maintain an in-phase relationship, which is crucial for achieving a diffraction-limited single lobe far-field output. The approach outlines the use of different impurity doses and disordering depths, balancing strong and weak waveguiding to minimize evanescent coupling specifically at branching junctions.

2. **Hybrid Y-Junction Laser Array**

This patent focuses on a semiconductor laser array featuring several waveguides that are connected at Y-junctions. Similar to his previous patent, it emphasizes preserving the in-phase relationship of lightwaves, resulting in a powerful and precise output. The strong waveguides are designed to prevent evanescent coupling at Y-junctions while allowing it to occur near the ends, ensuring optimal operation dynamics.

Career Highlights

Peter is currently associated with Spectra Diode Laboratories, Inc., where he continues to innovate and refine laser technologies. His work has been pivotal in enhancing the performance of semiconductor lasers, which are essential for various applications, including telecommunications and medical devices.

Collaborations

Throughout his career, Peter has collaborated with esteemed colleagues such as Donald R. Scifres and William Streifer. Their collective expertise has further advanced the development of semiconductor laser technology and has contributed to the success of their joint projects.

Conclusion

Peter Cross stands out as a significant figure in the field of semiconductor lasers. His innovative approaches have not only led to multiple patents but have also paved the way for future advancements in laser technology. As he continues to work with talented colleagues at Spectra Diode Laboratories, Inc., the impact of his contributions will undoubtedly resonate throughout the industry for years to come.