title: Development of an amplitude-modulated Nd:YAG pulsed laser with modulation frequency tunability up to 60 GHz by dual seed injection.
abstract: A pulsed, modulation frequency tunable, frequency-doubled Nd:YAG laser has been devised for use in target detection through turbid media. A modulated pulse laser radar system offers many advantages in target detection, such as significant signal contrast enhancement, compared with conventional remote-sensing systems. By implementation of the dual-longitudinal-mode seed injection technique, the modulation frequency of the designed Q-switched laser can be tuned from 250 MHz up to 60 GHz in steps of 250 MHz while maintaining a modulation depth of at least 75%. This provides the ability to explore propagation and scattering properties further at previously unattainable high RF modulation frequencies.
authors.affiliation: Applied Research Laboratory, Pennsylvania State University, State College, Pennsylvania 16802, USA.
authors.forename: Daniel C
authors.initials: DC
authors.lastname: Kao
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Kane
authors.forename: Linda J
authors.initials: LJ
authors.lastname: Mullen