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Tunable laser C-WAVE at work with trapped ions

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Professor Dr. Tobias Schätz from the Amo Research Group at the University of Freiburg (Germany) describes the group’s experimental work with trapped ion systems in the below AN. In this applications note, we read how the flexibility of the C-WAVE’s single frequency tunable wavelength can be utilized for ion trapping experiments.

Coulomb crystals consisting of isotopically pure Magnesium ions are build employing a new tunable continuous-wave (cw) laser light source: Mg atoms are isotope-selective ionized by resonant two-photon excitation at a wavelength of 285.3 nm. The UV laser light is generated via resonant second-harmonic generation of the output of a new cw laser C-WAVE that offers about 0.5 W singlefrequency output power that is tunable in the range 450 – 650 nm. The created Mg ions are trapped and cooled, building 2D Coulomb crystals which are used for further investigation.

Download the full applications note: C-WAVE at work with trapped ions

SPIE: Prism Award

The C-WAVE (from Hübner GmbH & Co. KG) is the only continuous-wave and single-frequency laser light source that covers the wavelength ranges 450 – 525 nm, 532 nm, 540 – 650 nm, 900 – 1050 nm, and 1080 – 1300 nm as a single laser device. Until now, this wavelength coverage has only been achieved with pulsed laser light sources.

The wavelength tuning of C-WAVE is fully computer controlled: no manual change of optics or crystals is required and no realignment is necessary. All other widely tunable continuous-wave laser light sources that cover parts of the visible wavelength range require manual change of crystals, dyes or optics, or even a realignment after tuning.

The C-WAVE is the only widely tunable continuous laser light source for the visible wavelength range that can be transported between different labs. Other laser systems require an extensive set-up and realignment procedure after change of location.

All properties listed above have been implemented for various pulsed lasers, but Hübner’s C-WAVE is currently the only continuous-wave laser that comprises these characteristics.

Parts of the technology have been registered at the “Europäische Patentanmeldung” – Brief summary of content: The patent describes the advantageous usage of both the signal and the idler waves originating from the OPO process for generating tunable laser light in the wide range of C-WAVE´s spectral coverage. Furthermore, a specific oven construction allows for gradient heating of the OPO crystal to improve the phase matching capabilities and thus the performance of the setup.