基于铷冷原子阱的立方体卫星量子重力测量用Zn:MgO:PPLN波导

2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) Pub Date : 2019-06-24 DOI:10.1109/CLEOE-EQEC.2019.8871679

L. Carpenter, S. Berry, T. Legg, M. Farries, Chloe J. Watson, R. Bannerman, A. Gray, C. Holmes, J. Gates, Peter G. R. Smith, C. Gawith

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摘要

基于卫星的实验要求激光系统紧凑、高效，能够抵抗振动、辐射和热循环。在Innovate UK量子技术“冷原子空间有效载荷(CASPA)”项目的支持下，我们制造了PPLN(周期性极化铌酸锂)脊波导，作为有效的频率转换器，通过电信激光器的二次谐波产生(SHG)冷却铷原子。CASPA是微立方体卫星内磁光冷却技术的示范，为新型重力测量和全球定位技术奠定了基础[1]。

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Zn:MgO:PPLN Waveguides for Rb Cold Atom Trap Based Quantum Gravitometry in a CubeSat

Satellite based experiments require laser systems that are compact and efficient, which are robust against vibration, radiation and thermal cycling. Supported by Innovate UK's Quantum Technology ‘Cold Atom Space PAyload (CASPA)‘ project we have fabricated PPLN (Periodically Poled Lithium Niobate) ridge waveguides to act as efficient frequency converters for rubidium atom cooling via second harmonic generation (SHG) of telecoms lasers. CASPA is a technology demonstrator for magneto-optical cooling within a micro CubeSat laying the foundations for novel gravitometry and global positioning techniques [1].

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2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

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