Erlangen 2018 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics V
Q 62.83: Poster
Thursday, March 8, 2018, 16:15–18:15, Redoutensaal
High Power SHG Laser System for 671nm — •Manuel Jäger, Daniel Hoffmann, Thomas Paintner, Wladimir Schoch, Wolfgang Limmer, and Johannes Hecker Denschlag — Institut für Quantenmaterie, Universität Ulm, Deutschland
High-power, stable, single mode lasers have developed into important prerequisites for cold atom production and manipulation. We have built up a narrow-linewidth (< 2 MHz) all-solid-state laser source at 671nm which can be stabilized to the D2 line of 6Li and provides an output power of 1.1 watt. The construction is based on a design of the group of Christophe Salomon [1,2]. The laser system is based on a ring laser at a wavelength of 1342nm which is frequency-doubled in a cavity.
The ring laser consists of a diode-pumped Nd:YVO4 crystal inside a bow-tie cavity. By using frequency-selective elements we can stabilize the laser for single mode emission and reach an output power of 3-4 watt.
We frequency-double this light using a ppMgO:LN crystal, which features a high conversion efficiency. To increase the second harmonic generation this crystal is placed in an enhancement cavity in bow-tie configuration.
[1] Norman Kretzschmar, Ulrich Eismann, Franz Sievers, Frédéric Chevy and Christophe Salomon, Opt. Express 25, 14840-14855 (2017)
[2] U. Eismann, F. Gerbier, C. Canalias, A. Zukauskas, G. Tré, J. Vigué, F. Chevy, C. Salomon, Appl. Phys. B 106, 25 (2012).