Dr. Hall has led several technical projects for Praevium, and continues to be involved with Praevium on an advisory basis. He received his BS in Engineering Physics from the University of California, Berkeley in 1995 and his Ph.D. in Materials Science from the University of California, Santa Barbara in 2000 where he developed long-wavelength VCSELs with record output powers and operating temperatures. Prior to joining Praevium in 2006, he was a Member of the Technical Staff at Agility Communications and then at JDSU following its acquisition of Agility in 2005. In that position he led a variety of teams on device design, process development, yield improvement, transfer to manufacturing, and transfer to contract manufacturer of widely tunable telecom transmitters and transponders. Dr. Hall holds eight patents and has authored over 25 papers on compound semiconductor and optoelectronic device technology.