René Todt

Title: Innovations of René Todt in Semiconductor Laser Technology

Introduction

René Todt is a notable inventor based in Adliswil, Switzerland. He has made significant contributions to the field of semiconductor laser technology, holding 2 patents that showcase his innovative approach to high power laser sources.

Latest Patents

One of his latest patents involves high power semiconductor laser diodes. This invention describes a high power laser source that comprises a bar of laser diodes with a specific coefficient of thermal expansion (CTE) on a submount that has a different CTE, along with a cooler that also has its own CTE. The assembly of the submount and cooler results in an effective fourth coefficient of thermal expansion that differs from the original CTE. This difference can lead to deformation of the crystal lattice in the active regions of the lasers due to mechanical stress. The CTE is strategically selected to be either lower than both the submount and cooler CTEs or positioned between them. The submount may consist of layers of materials with varying CTEs, such as a copper layer of 10-40 micrometers in thickness and a molybdenum layer of 100-400 micrometers in thickness, or it may be made from a single material with a varying CTE. Both configurations result in a CTE that varies across the thickness of the submount.

Career Highlights

Throughout his career, René Todt has worked with various companies, including Oclaro Technology Limited. His work has significantly impacted the development of high power laser technologies.

Collaborations

René has collaborated with notable professionals in the field, including Martin Krejci and Norbert Lichtenstein. Their combined expertise has contributed to advancements in semiconductor laser technology.

Conclusion

René Todt's innovative work in high power semiconductor laser diodes exemplifies his commitment to advancing technology in this field. His patents reflect a deep understanding of material properties and their applications in laser technology.