Bruno Thedrez

Title: Bruno Thedrez: Innovator in Optical Telecommunications

Introduction

Bruno Thedrez is a notable inventor based in Paris, France. He has made significant contributions to the field of optical telecommunications, holding two patents that showcase his innovative approach to technology.

Latest Patents

His latest patents include a "Method and system for WDM transmission with chromato-temporal encoding." This invention discloses a transmitter and a receiver for an optical telecommunication system of the WDM type. The transmitter utilizes a chromato-temporal encoder that associates a code matrix with each block of symbols to be transmitted. Each element of the matrix corresponds to a wavelength and a use of the channel. The transmitter features multiple modulators, each modulating a laser beam at a specific wavelength during a channel use, as indicated by the code matrix. The modulated beams are then multiplexed in an optical fiber. Another embodiment proposed involves both wavelength and polarization encoding.

Additionally, he holds a patent for a "Semiconductor optical device on an indium phosphide substrate for long operating wavelengths." This invention pertains to a semiconductor optical device, such as a laser or semiconductor optical amplifier (SOA), based on an indium phosphide substrate. The active layer of the device is based on conventional InGaAs(P) alloy, enhanced with nitrogen to increase the operating wavelength beyond 1.5 µm, ideally within the C- or L-band. The active layer may include quantum wells or be a 'massive' layer with quasi-bulk properties, designed to manipulate light and heavy hole bands effectively.

Career Highlights

Bruno Thedrez has worked with notable companies, including Avonex Corporation and Institut Mines-Telecom. His experience in these organizations has contributed to his expertise in optical telecommunications and semiconductor devices.

Collaborations

He has collaborated with esteemed colleagues such as Jean-Louis Gentner and Francois Alexandre, further enhancing his contributions to the field.

Conclusion

Bruno Thedrez is a distinguished inventor whose work in optical telecommunications and semiconductor devices has led to significant advancements in technology. His patents reflect a deep understanding of complex systems and innovative solutions.