Carl-Fredrik Carlström

Title: Innovations by Carl-Fredrik Carlström

Introduction

Carl-Fredrik Carlström is a notable inventor based in Farsta, Sweden. He has made significant contributions to the field of laser technology, particularly in the development of methods to create contamination-free surfaces for laser mirrors. With a total of 2 patents, his work has implications for the efficiency and performance of GaAs-based lasers.

Latest Patents

Carlström's latest patents include a method to obtain contamination-free laser mirrors and a method for GaAs-based lasers. The first patent focuses on creating contamination-free surfaces on materials such as GaAs, GaAlAs, InGaAs, InGaAsP, and InGaAs at crystal mirror facets for GaAs-based laser cavities. This method involves cleaving the crystal mirror facets and exposing them to a controlled ambient atmosphere. Any oxides and contaminants are removed through dry etching in a vacuum, followed by the growth of a native nitride layer using nitrogen treatment.

The second patent relates to a method that employs dry etching to achieve contamination-free surfaces on GaAs-based lasers. This process includes the use of a mask to protect certain areas of the laser surface from etching. The laser is placed in a vacuum, and dry etching is performed using chemically reactive gases or inert gases. A native nitride layer is then created using nitrogen plasma, followed by the addition of a protective layer or mirror coating.

Career Highlights

Carlström is associated with Comlase AB, where he continues to innovate in the field of laser technology. His work has been instrumental in advancing the capabilities of GaAs-based lasers, which are widely used in various applications.

Collaborations

Some of his notable coworkers include L Karsten V Lindström and N Peter Blixt. Their collaborative efforts contribute to the ongoing research and development in laser technology.

Conclusion

Carl-Fredrik Carlström's contributions to the field of laser technology through his innovative patents highlight his expertise and commitment to advancing this critical area of research. His work continues to influence the development of efficient laser systems.