Marcel Franz Christian Schemann

Title: Marcel Franz Christian Schemann: Innovator in Distributed Feedback Lasers

Introduction

Marcel Franz Christian Schemann is a notable inventor based in Maria Hoop, Netherlands. He has made significant contributions to the field of semiconductor technology, particularly in the development of distributed feedback (DFB) lasers.

Latest Patents

Schemann holds a patent for a Distributed Feedback (DFB) Laser with Slab Waveguide. This innovative laser design features a substrate made of compound semiconductor material, with quantum-well (QW) active layers positioned above it. The structure includes a p-doped cladding layer on one side of the active layer and an n-doped cladding layer on the opposite side. A grating within one of the cladding layers is specifically designed to select the operating wavelength for the DFB laser. Additionally, the waveguide structure in the n-doped cladding layer incorporates a waveguide layer that is compositionally different from the compound semiconductor material, with an optical thickness ranging from 0.7 to 1.5 times the guided wavelength.

Career Highlights

Schemann is currently associated with Gooch and Housego Plc, where he continues to advance his research and development efforts in laser technology. His work has been instrumental in enhancing the performance and efficiency of DFB lasers.

Collaborations

One of his notable collaborators is Alexander Rosiewicz, with whom he has worked on various projects related to semiconductor lasers.

Conclusion

Marcel Franz Christian Schemann is a prominent figure in the field of laser technology, with a focus on distributed feedback lasers. His innovative patent and ongoing work at Gooch and Housego Plc highlight his contributions to advancing semiconductor technology.