Company Filing History:
3 out of 736 
1 out of 98 
1 out of 2,504 
Years Active: 1987-2001
Title: Christian Duchet: Innovator in Semiconductor Technology
Introduction
Christian Duchet is a notable inventor based in Marcoussis, France. He has made significant contributions to the field of semiconductor technology, holding a total of six patents. His work focuses on advancements that enhance optical communication systems and improve the efficiency of semiconductor devices.
Latest Patents
Among his latest patents is the semiconductor phase modulator. This innovative device comprises a lower cladding layer, an active waveguide, and an upper cladding layer, all deposited successively on a substrate made of III-V material. The active waveguide features at least one first active layer with a specific photoluminescence wavelength and a second active layer of compensation. The operating wavelength of the modulator is designed to be higher than the first photoluminescence wavelength by a range of 80 to 200 nm, and it exceeds the second photoluminescence wavelength by more than 300 nm.
Another significant patent is the wavelength demultiplexer. This device includes a diffraction space defined by a reception surface coupled to a grating. To achieve output waves with a flattened spectral response, the input waveguide and the reception surface are dimensioned to ensure that the input wave diffracts over the surface, resulting in multiple secondary lobes. This demultiplexer is particularly applicable to optical communications systems that utilize wavelength multiplexing.
Career Highlights
Christian Duchet has worked with prominent companies in the technology sector, including Alcatel N.V. and Compagnie Générale d'Électricité. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Some of his notable coworkers include Michel Di Maggio and Christian Brot, who have contributed to his projects and advancements in the field.
Conclusion
Christian Duchet's contributions to semiconductor technology through his patents and career experiences highlight his role as an influential inventor. His work continues to impact the field of optical communications and semiconductor devices.