title: Note: Improved technique for ultrashort lasers pulse width stabilization.
abstract: We have developed an improved pulse width stabilization method based on the second harmonic generation (SHG) technique using the relationship between pulse width, input intensity, and SHG intensity. On the basis of an analysis of the improved method accuracy, we then proposed a novel processing algorithm, which allowed us to increase the accuracy of pulse width stabilization to 1.2%. We applied this method to a picosecond Yb-doped fiber laser, which offers pulse widths ranging from 10 to 14 ps. We have demonstrated, for what is believed to be the first time, pulse width stabilization of this laser with an absolute error of less than 200 fs.
authors.affiliation: Bauman Moscow State Technical University, 5/1 2nd Baumanskaya, Moscow 105005, Russia.
authors.forename: Dmitriy
authors.initials: D
authors.lastname: Shelestov
authors.affiliation: Bauman Moscow State Technical University, 5/1 2nd Baumanskaya, Moscow 105005, Russia.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Lazarev
authors.affiliation: Bauman Moscow State Technical University, 5/1 2nd Baumanskaya, Moscow 105005, Russia.
authors.forename: Valeriy
authors.initials: V
authors.lastname: Karasik
authors.affiliation: Bauman Moscow State Technical University, 5/1 2nd Baumanskaya, Moscow 105005, Russia.
authors.forename: Kirill
authors.initials: K
authors.lastname: Koshelev
authors.affiliation: Bauman Moscow State Technical University, 5/1 2nd Baumanskaya, Moscow 105005, Russia.
authors.forename: Alexey
authors.initials: A
authors.lastname: Pnev
authors.affiliation: Fianium Ltd., 20 Compass Point, Ensign Way, Southampton SO31 4RA, United Kingdom.
authors.forename: Anatoly
authors.initials: A
authors.lastname: Grudinin