All-fiber passively Q-switched 604 nm praseodymium laser with a Bi<sub>2</sub>Se<sub>3</sub> saturable absorber.

Title All-fiber passively Q-switched 604 nm praseodymium laser with a Bi<sub>2</sub>Se<sub>3</sub> saturable absorber.
Authors Lin, H.Y.; Li, W.S.; Lan, J.L.; Guan, X.F.; Xu, H.Y.; Cai, Z.P.
Journal Appl Opt
DOI 10.1364/AO.56.000802
Abstract

We experimentally demonstrated a simple passively Q-switched praseodymium (Pr3+)-doped all-fiber laser at 604 nm with a Bi2Se3 saturable absorber (SA). A Bi2Se3/polyvinyl alcohol composite film is sandwiched between two ferrules to construct a fiber-compatible Q-switcher. Two fiber end facet mirrors build a compact-linear resonator. The repetition rate of the achieved 604 nm Q-switching pulse can be widely tuned from 86.2 to 187.4 kHz, and the pulse duration can be as narrow as 494 ns. To the best of our knowledge, this is the shortest operation wavelength of a Bi2Se3-based pulsed all-fiber laser at 604 nm.

Citation Lin, H.Y.; Li, W.S.; Lan, J.L.; Guan, X.F.; Xu, H.Y.; Cai, Z.P..All-fiber passively Q-switched 604 nm praseodymium laser with a Bi<sub>2</sub>Se<sub>3</sub> saturable absorber..

Related Elements

Praseodymium

59 Pr 140.907650000 Praseodymium

See more Praseodymium products. Praseodymium (atomic symbol: Pr, atomic number: 59) is a Block F, Group 3, Period 6 element with an atomic weight of 140.90765. Praseodymium Bohr Model The number of electrons in each of praseodymium's shells is 2, 8, 18, 21, 8, 2 and its electron configuration is [Xe]4f3 6s2. The praseodymium atom has a radius of 182 pm and a Van der Waals radius of 239 pm. Praseodymium resembles the typical trivalent rare earths, however, it will exhibit a +4 state when stabilized in a zirconia host. Elemental PraseodymiumUnlike other rare-earth metals, which show antiferromagnetic and / or ferromagnetic ordering at low temperatures, praseodymium is paramagnetic at any temperature above 1 K. Praseodymium is found in the minerals monazite and bastnasite. Praseodymium was discovered by Carl Auer von Welsbach in 1885. The origin of the element name comes from the Greek words prasios didymos, meaning green twin.

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