Since joining Bell Labs 6 years ago, he has been primarily working on advanced modulation formats together with coherent detection and digital signal processing for long-haul and ultra long-haul optical fiber transmissions at 40Gb/s and 100Gb/s. His work contributed to several multi-Terabit/s transmission records. For the past three years, he has been extensively involved in forward-looking research for beyond 100G transmission systems employing coherent receivers, demonstrating long-haul and ultra-long haul transmissions at up to 1 Tb/s data rate. He has authored or co-authored over 100 journal and conference papers, and holds over 25 patents in optical communications. Dr. Renaudier is a member of the Alcatel-Lucent Technical Academy.