Claude Fabre is Emeritus Professor in Physics at Sorbonne University at the Kastler–Brossel Laboratory in Paris, and has made pioneering contributions within the field of quantum optics, especially concerning the manipulation of quantum fluctuations and correlations in light and quantum parameter estimation. He is Fellow of the Optical Society of America and an honorary member of the Institut Universitaire de France. He was awarded the Grand Prix Léon Brillouin. He co-authored the successful textbook Introduction to Quantum Optics (2010) with Gilbert Grynberg and Alain Aspect.