13 Apr 2007 EKSPLA offers a new attractive lasing materials ytterbium doped potassium tungstates, namely Yb:KYW and Yb:KGW . A Yb:KGW crystal as a gain medium exhibits high slope efficiency with CW laser and diode pumping at around 980 nm, owing to the small quantum defect level (~5%), the high stimulated-emission cross-section (up to 2.8 x 10 -20 cm2) and suitable Stark-level structure. The large emission and absorption cross-sections associated with Yb:KGW and Yb:KYW materials has resulted in efficient operation of lasers both in continuous–wave and pulsed mode. Compared with Nd-doped media, broader emission bandwidths of Yb:KGW and Yb:KYW make them ideal candidates for the generation of ultrashort pulses by compact diode-pumped laser systems and directly diode pumped regenerative amplifiers.
Moreover, undoped KGW and KYW have attracted much interest as one of most suitable solid-state materials for stimulated Raman scattering (SRS) .
Available Yb3+ dopant level for KGW is up to 5 at. %, while it is not limited for KYW material. Finished elements of size up to 20x20x60 mm at b-cut orientation can be supplied.
Applications
Yb:KGW and Yb:KYW thin (100–150 µm) crystals are used as lasing materials to generate ultrashort (< 100 fs) high power (> 22 W) pulses. Standard pumping at 981 nm, output: 1023–1060 nm
Yb:KGW and Yb:KYW can be used as ultrashort pulses amplifiers
Yb:KGW and Yb:KYW are one of the best materials for high power thin disk lasers.
Features
High absorption coefficient at 981 nm
High stimulated emission cross section
Low laser threshold
Extremely low quantum defect
Broad polarized output at 1023–1060 nm
High slope efficiency with diode pumping (~ 60%)
High Yb doping concentration.
Custom manufacturing capabilities
Various shapes (slabs, rods, cubes)
Different dopant levels
Diversified coatings
Learn more about Yb:KGW crystals
Visit EKSPLA booth at the forthcoming exhibitions:
Optics and optoelectronics 2007 (Prague)
CLEO 2007 (Baltimore)
LASER 2007 (Munich)
About EKSPLA
EKSPLA is ISO 9001:2000 certified manufacturer of lasers and laser systems as well as photonics components for scientific and industrial applications. Featuring more than 20 years experience in design and manufacturing of photonics products, EKSPLA offers its customers one stop solution - from single component to complete system.
Nonlinear and laser crystals
Optical & opto-mechanical components
Opto-electronic components
Diode pumped lasers for material processing and spectroscopy
Laser spectroscopy systems
Picosecond mode-locked Nd:YAG lasers
Nanosecond Q-switched Nd:YAG lasers
For more information about EKSPLA, visit the EKSPLA website
EKSPLA,
Ph. +370 5 264 96 29
Fax: +370 5 264 18 09
e-mail: sales@ekspla.com
web: http://www.ekspla.com |
