Patrick Garabedian

Title: The Innovations of Patrick Garabedian

Introduction

Patrick Garabedian is a notable inventor based in Arpajon, France. He has made significant contributions to the field of semiconductor lasers, holding 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest patents is for a surface emitting semiconductor laser. This invention features two semiconductor layers that form a tunnel junction, allowing an electrical current for pumping the laser to pass from an N doped semiconductor Bragg mirror to a P doped injection layer within the light-amplifying structure. The Bragg mirror works in conjunction with another mirror of the same type, which has the same doping, to include the structure in an optical cavity of the laser. In a variant of this design, the tunnel junction may be buried and positioned to serve as confinement means for the pumping current. This laser technology can be utilized in optical fiber communications networks.

Another significant patent by Garabedian is for a double channel semiconductor laser and the method of fabricating it. In this design, the energization current of an indium phosphide or gallium arsenide double channel semiconductor laser is confined within a laser stripe through near and far current blocking arrangements. The near current blocking arrangements are created by a blocking junction formed in two lateral channels that define the stripe. The far current blocking arrangements are established by an iron-doped semi-insulative layer that is grown epitaxially before the lateral channels are etched. This invention has particular applications in the fabrication of pump lasers used in optical amplifiers for optical fiber links.

Career Highlights

Throughout his career, Patrick Garabedian has worked with prominent companies such as Alcatel and Alcatel Cit. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the field of semiconductor lasers.

Collaborations

Garabedian has collaborated with notable individuals in his field, including Francois Brillouet and Leon Goldstein. These partnerships have likely enriched his work and led to further advancements in semiconductor technology.

Conclusion

Patrick Garabedian's contributions to the field of semiconductor lasers are noteworthy and demonstrate his innovative capabilities. His patents reflect a deep understanding of laser technology and its applications in modern communication systems.