Compact tunable diode laser with diffraction-limited 1 Watt for atom cooling and trapping

Sandra Stry; Lars Hildebrandt; Joachim Sacher; Christian Buggle; Mark Kemmann; Wolf von Klitzing

doi:10.1117/12.525059

1 June 2004 Compact tunable diode laser with diffraction-limited 1 Watt for atom cooling and trapping

Sandra Stry, Lars Hildebrandt, Joachim Sacher, Christian Buggle, Mark Kemmann, Wolf von Klitzing

Proceedings Volume 5336, High-Power Diode Laser Technology and Applications II; (2004) https://doi.org/10.1117/12.525059
Event: Lasers and Applications in Science and Engineering, 2004, San Jose, Ca, United States

Abstract

Since the introduction of laser-cooling techniques for neutral atoms, the enhancement of high-power lasers with excellent spectral and spatial quality has been an important research subject. We report a new principle of using high-power laserdiodes directly in an external cavity. The very compact design offers an output power of up to 1 W and an excellent beam quality (M² < 1.2). The coupling efficiency for a single mode fiber exceeds 60%. The center wavelength can be tuned between 775 nm and 785 nm. This laser operates single mode with a mode-hop free tuning range of up to 15 GHz without current modulation and a side-mode suppression better than 55 dB. Demonstrating the suitability for neutral atom cooling we used this laser as light source in the production of a BEC of over a million ⁸⁷Rb atoms.

Citation Download Citation

Sandra Stry, Lars Hildebrandt, Joachim Sacher, Christian Buggle, Mark Kemmann, and Wolf von Klitzing "Compact tunable diode laser with diffraction-limited 1 Watt for atom cooling and trapping", Proc. SPIE 5336, High-Power Diode Laser Technology and Applications II, (1 June 2004); https://doi.org/10.1117/12.525059

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