11 W narrow linewidth laser source at 780 nm for laser cooling and manipulation of Rubidium.
11 W narrow linewidth laser source at 780 nm for laser cooling and manipulation of Rubidium.
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DOI：
10.1364/oe.20.008915
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发表时间：
2012-02
期刊：
影响因子：
3.8
通讯作者：
S. Sané;S. Bennetts;J. Debs;Carlos C. N. Kuhn;G. McDonald;P. Altin;J. Close;N. Robins
中科院分区：
文献类型：
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作者：
S. Sané;S. Bennetts;J. Debs;Carlos C. N. Kuhn;G. McDonald;P. Altin;J. Close;N. Robins
我们提出了一种窄线宽连续激光源，在780 nm的输出功率超过11 W，基于单通倍频的放大1560 nm光纤激光器，效率为36%。该源提供了高功率，简单，模式质量和稳定性的组合。在没有任何主动稳定的情况下，线宽测量值低于10khz。该纤维种子可在60 GHz以上调谐，从而允许在⁸⁷Rb和⁸35 Rb中获得D₂跃迁，为激光冷却和原子干涉测量中的大动量转移分束器提供了可行的高功率源。这种类型的光源将为新一代高通量、高占空比的简并量子气体实验铺平道路。
We present a narrow linewidth continuous laser source with over 11 W output power at 780 nm, based on single-pass frequency doubling of an amplified 1560 nm fibre laser with 36% efficiency. This source offers a combination of high power, simplicity, mode quality and stability. Without any active stabilization, the linewidth is measured to be below 10 kHz. The fibre seed is tunable over 60 GHz, which allows access to the D₂ transitions in ⁸⁷Rb and ⁸⁵Rb, providing a viable high-power source for laser cooling as well as for large-momentum-transfer beamsplitters in atom interferometry. Sources of this type will pave the way for a new generation of high flux, high duty-cycle degenerate quantum gas experiments.