Company Filing History:
Years Active: 2010-2012
Title: The Innovations of Christian Dourthe
Introduction
Christian Dourthe is a notable inventor based in Lannion, France. He has made significant contributions to the field of optical communications, particularly in measuring differential group delay in optical fiber connections. With a total of two patents to his name, Dourthe's work has advanced the understanding and functionality of optical signal processing.
Latest Patents
Dourthe's latest patents focus on innovative methods for measuring differential group delay in optical fiber connections. One patent describes a technique where the differential group delay is measured for an optical signal undergoing phase modulation, such as BPSK or DPSK. This method involves a polarization controller that scans the polarization states of the modulated optical signal. An emulator introduces an additional delay in the signal, which is then combined with the non-delayed signal to create a resulting optical signal. The final output is analyzed using a digital oscilloscope or an optical spectrum analyzer to determine the differential group delay.
Another patent outlines an apparatus designed for measuring the differential group delay in an optical fiber connection. This apparatus includes a generator for producing a binary signal sequence, along with two polarization controllers that independently scan the polarization states of the incoming and outgoing signals. A differential group delay emulator introduces a variable additional group delay, while an analyzer device detects the equality in the resulting signal sequence.
Career Highlights
Throughout his career, Christian Dourthe has worked with prominent companies in the telecommunications sector, including France Telecom and Orange. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical communications.
Collaborations
Dourthe has collaborated with several professionals in his field, including Daniel Hui Bon Hoa and Paulette Gavignet. These collaborations have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Christian Dourthe's contributions to optical communications through his patents demonstrate his expertise and innovative spirit. His work continues to influence the field, paving the way for future advancements in optical signal processing.