Christopher Erickson received his PhD in Physics from Brigham Young University working on hot and cold atom matter-wave interferometers. He received a Science Mathematics and Research for Transformation Fellowship from the Department of Defense to develop diode-pumped alkali lasers, which led to employment with the Air Force Research Laboratory (AFRL). There he first helped develop cold atom inertial sensors before moving on to optical atomic clocks based on rubidium and calcium and the development of portable fiber-based frequency combs. He briefly served as the principle investigator for space atomic clocks on the Navigation Technology Satellite-3 before taking an assignment as speech writer for the AFRL HQ executive group. He currently leads atomic physics time and frequency activities at the UK’s Defence Science and Technology Laboratory (Dstl) under the Engineer and Scientist Exchange Program