Zobrazeno 1 - 10
of 108
pro vyhledávání: '"77"'
Autor:
Damian Janicki
Publikováno v:
Laser Technology 2012: Applications of Lasers.
The study of laser bead-on-plate welding of nickel based superalloy Rene 77 using single mode high power fiber laser has been undertaken to determine the effect of process parameters, such as laser power, welding speed and laser beam defocusing, on t
Publikováno v:
SPIE Proceedings.
Laser glazing, using a KrF excimer laser (λ = 248 nm, τ = 22 ns), has been used to improve the corrosion resistance properties of crystallized Fe40Ni38Mo4B18 (Metglas 2826MB) and the permanent magnet material Nd15Fe77B8. The formation of an amorpho
Publikováno v:
Optical Components and Materials XVIII.
In the pursuit of new mid-IR laser gain materials, dysprosium-doped barium fluoride was evaluated for its potential laser emission in the 3-μm spectral region. Comprehensive spectroscopic characterization was performed, including absorption, fluores
Autor:
Valery Filippov, Andrei Fedotov, Vasilii Ustimchik, Regina Gumenyuk, Teppo Noronen, Yuri Chamorovskii, Joona Rissanen
Publikováno v:
Fiber Lasers XVII: Technology and Systems.
We present a single-mode narrow band linear-polarized picosecond green fiber source delivered up to 146.4 kW of peak power. The laser architecture is composed of frequency-doubled all-fiber MOPA system operating at 1064 nm. The commercially available
Autor:
Michal Němec, Michal Jelínek, V. V. Osiko, N. O. Kovalenko, Igor S. Terzin, Jan Šulc, Helena Jelínková, Maxim E. Doroshenko
Publikováno v:
SPIE Proceedings.
Fe2+:Cd1-xMnxTe solid solution spectroscopic and lasing properties depending on temperature and Mn concentration x were investigated. A set of Fe2+:Cd1-xMnxTe crystals with different concentration of Mn (x = 0.1, 0.52, 0.68, and 0.78) was synthesized
Autor:
Jan Šulc, Helena Jelínková, A. N. Nakladov, Vasilii A. Konyushkin, Michal Němec, Maxim E. Doroshenko, V. V. Osiko, Karel Veselský
Publikováno v:
SPIE Proceedings.
The goal of this work was an investigation of the temperature influence (in range 77 - 300 K) on laser properties of Tm:SrF2-CaF2 solid-solution, which is suitable as a gain medium for generation of radiation at 1.8-2 μm. The tested Tm:SrF2-CaF2 sam
Publikováno v:
SPIE Proceedings.
The 1.6 μm emission properties originating from the 3 F 3 , 3 F 4 → 3 H 4 transition of Pr 3+ ions in Pr-doped PbCl 2 crystals were investigated for possible application in resonantly-pumped, eye-safe laser development. Pr: PbCl 2 was synthesized
Autor:
G. A. Newburgh, Mark Dubinskii
Publikováno v:
Laser Technology for Defense and Security VII.
We report what is believed to be the first laser operation based on Ho 3+ -doped YVO 4 . The Ho +3 : YVO 4 was resonantly diode-pumped at ~1.93 μm to produce up to 1.6 W of continuous wave (CW) output power at ~2.054 μm. The laser had a slope effic
Publikováno v:
SPIE Proceedings.
We report on an ytterbium-doped fiber laser (FL) pumped by an Yb:YAG thin disk laser [1]. The FL essentially acts as a brilliance converter suitable for applications requiring a diffraction limited kilowatt-class laser source. The FL can be positione
Publikováno v:
SPIE Proceedings.
We have proposed a new physical approach for the design of mid-IR lasers operating at λ = 3.2 - 3.26 μm based on type II heterojunctions with a large asymmetric band-offset at the interface (ΔE C > 0.6 eV and ΔE V > 0.35 eV). These high potential