Synchronization of dual-line lasing and subsequent gigahertzmodulation of iodine lasers through mode locking

摘要

Dual hyperfine line lasing of a Zeeman-tuned photolytic iodinenlaser resulting in 14-GHz modulated laser radiation was studiednexperimentally and theoretically as a function of the applied magneticnfield. Synchronization of the phases of the two hyperfine linesnnecessary for optimum gigahertz modulation was achieved by mode locking.nThe resulting pulse durations of 740 ps were shorter than thosenpreviously observed without a magnetic field. Short pulses, togethernwith the possibility of scaling the results to high-powernchemical-oxygen iodine lasers, make this concept attractive for anlaser-driven ultrawideband microwave source