Location History:
- Paris, FR (2015)
- Orsay, FR (2012 - 2018)
Company Filing History:
3 out of 14 
2 out of 10 
1 out of 1 
Years Active: 2012-2018
Title: **Innovative Contributions of Arnaud Landragin**
Introduction
Arnaud Landragin is a prominent inventor based in Orsay, France, known for his significant contributions to the field of coherent spectroscopy and gravitational measurement systems. With a total of four patents to his name, Landragin has made remarkable advancements that have potential applications in various scientific and technological domains.
Latest Patents
Among his latest innovations are two noteworthy patents:
1. **Coherent Spectroscopic Methods with Extended Interrogation Times**: This patent describes methods to measure the total phase difference during extended interrogation intervals between signals generated by a local oscillator and those produced by a quantum system. The innovative approach involves reading out intermediate error signals at the end of successive sub-intervals, enabling accurate characterization of phase differences while maintaining coherence. This method facilitates the reconstruction of total phase differences over extended periods, advancing the accuracy of quantum measurements.
2. **Cold Atom Gravity Gradiometer**: This patent outlines a system that employs a cold atom gravity gradiometer, which includes a laser source and reflectors for generating and manipulating laser beams. The system is designed to improve precision in measuring gravitational fields, thereby enhancing research capabilities in geophysics and related fields.
Career Highlights
Throughout his career, Arnaud Landragin has worked with esteemed institutions such as the Observatoire de Paris and the Institut d'Optique Graduate School. His tenure at these organizations has fostered an environment for groundbreaking research and development in physics and optical sciences, contributing to the frontier of measurement science.
Collaborations
Landragin is known for collaborating with notable professionals, including Philippe Bouyer and Bruno Desruelle. These partnerships have enriched his research endeavors, leading to the creation of advanced technologies and methodologies that benefit various scientific communities.
Conclusion
Arnaud Landragin stands out as a remarkable inventor whose patents advance the fields of coherent spectroscopy and gravitational measurement. His dedication to innovation and research has not only enhanced the scientific understanding of quantum systems but also paved the way for future technological advancements.