Results 21 to 30 of about 29,145 (300)

Double tungstate lasers: From bulk toward on-chip integrated waveguide devices [PDF]

, 2007
It has been recognized that the monoclinic double tungstates $KY{(WO_4)}_2$, $KGd{(WO_4)}_2$, and $KLu{(WO_4)}_2$ possess a high potential as rare-earth-ion-doped solid-state laser materials, partly due to the high absorption and emission cross sections ...
Borca, Camelia N., Delfyett, P.J., Gardillou, Florent, Griebner, Uwe, Petrov, Valentin, Pollnau, Markus, Rivier, Simon, Romanyuk, Yaroslav E.   +7 more
core   +2 more sources

Investigation on efficiency declines due to spectral overlap between LDAs pump and laser medium in high power double face pumped slab laser

Results in Physics, 2018
In high power diode lasers, the input cooling water temperature would affect both output power and output spectrum. In double face pumped slab laser, the spectrum of two laser diode arrays (LDAs) must be optimized for efficiency reason.
Ye Lang, Yanzhong Chen, Lifen Liao, Guangyan Guo, Jianguo He, Zhongwei Fan   +5 more
doaj   +1 more source

Analysis of heat generation and thermal lensing in erbium 3-µm lasers [PDF]

, 2003
The influence of energy-transfer upconversion (ETU) between neighboring ions in the upper and lower laser levels of erbium 3-µm continuous-wave lasers on heat generation and thermal lensing is investigated.
Pollnau, Markus
core   +2 more sources

Medium-power diode-pumped Nd:BaY2F8 laser

Optics Express, 2003
We report what is to our knowledge the first Nd:BaY2F8 (Nd:BaYF) laser pumped with a multiwatt fiber-coupled diode array tuned at approximately 804 nm. As much as 2.4 W were obtained with 6.2 W of absorbed pump power, showing efficient operation (51% slope efficiency), excellent beam quality (M2=1.1), and weak thermal lensing. Small intracavity losses (
Agnesi A, Guandalini A, Lucca A, Sani E, TONCELLI, ALESSANDRA, TONELLI, MAURO, Dell'Acqua S.   +6 more
openaire   +5 more sources

Diode-pumped 99 fs Yb:CaF_2 oscillator

Optics Letters, 2009
We demonstrate the generation of 99 fs pulses by a mode-locked laser oscillator built around a Yb:CaF(2) crystal. An average power of 380 mW for a 13 nm bandwidth spectrum centered at 1053 nm is obtained. The short-pulse operation is achieved thanks to a saturable absorber mirror and is stabilized by the Kerr lens effect.
Friebel, Florence, Druon, Frédéric, Boudeile, Justine, Papadopoulos, Dimitris N., Hanna, Marc, Georges, Patrick, Camy, Patrice, Doualan, Jean-Louis, Benayad, Abdel, Moncorgé, Richard, Cassagnes, C., Boudebs, G.   +11 more
openaire   +5 more sources

Efficient long-wave infrared ZGP optical parametric oscillator pumped by a diode-pumped AO Q-switched Ho:YAG laser

Frontiers in Physics
We describe an efficient long-wave infrared optical parametric oscillator based on ZnGeP2 crystal pumped by a diode-pumped AO Q-switched Ho:YAG laser in this paper.
Zuoxun Hou, Song Yang, Guoxian Zheng
doaj   +1 more source

330 mJ single-frequency Ho:YLF slab amplifier [PDF]

, 2013
We report on a double-pass Ho:YLF slab amplifier which delivered 350 ns long single-frequency pulses of up to 330 mJ at 2064 nm, with a maximum M-2 of 1.5 at 50 Hz.
Bollig, C., Collett, O. J. P., Esser, Daniel, Jacobs, C., Koen, W., Preussler, D., Strauss, H. J.   +6 more
core   +1 more source

OLED-Pumped Organic Laser Diode

Photonics
A theoretical analysis is presented for a recently proposed high-speed µ-OLED optically pumped organic laser. We confirm that for this configuration, the laser threshold is reached at a lower current density than in the case of a direct-electrically ...
Daan Lenstra, Alexis Fischer
doaj   +1 more source

Directly diode-pumped, Kerr-lens mode-locked, few-cycle Cr:ZnSe oscillator

, 2019
Lasers based on Cr$^{2+}$-doped II-VI material, often known as the Ti:Sapphire of the mid-infrared, can directly provide few-cycle pulses with super-octave-spanning spectra, and serve as efficient drivers for generating broadband mid-infrared radiation ...
Gröbmeyer, Sebastian, Krausz, Ferenc, Mak, Ka Fai, Nagl, Nathalie, Pervak, Vladimir, Pronin, Oleg   +5 more
core   +1 more source

Red and orange laser operation of Pr:KYF4 pumped by a Nd:YAG/LBO laser at 469.1nm and a InGaN laser diode at 444nm [PDF]

, 2013
We report the basic luminescence properties and the continuous-wave (CW) laser operation of a Pr3+-doped KYF4 single crystal in the Red and Orange spectral regions by using a new pumping scheme.
Braud, A., Bretenaker, F., Cai, Z. P., Camy, P., Doualan, J. L., Goldner, Philippe, Moncorgé, R., Paboeuf, D., Starecki, F., Xu, B.   +9 more
core   +1 more source