用于冷原子传感、光学原子钟和精密计量的氮化镓激光二极管

S. Najda, P. Perlin, T. Suski, S. Stanczyk, A. Kafar, M. Leszczynski, D. Schiavon, T. Slight, S. Gwyn, S. Watson, A. Kelly, M. Knapp, M. Haji
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引用次数: 0

摘要

包含关键GaN激光组件的量子技术将使新一代精密传感器、光学原子钟和安全通信系统成为可能,用于下一代导航、重力测绘和定时等许多应用,因为AlGaInN材料系统允许在从紫外线到可见光的广泛波长范围内制造激光二极管。我们报告了一系列AlGaInN二极管激光器的最新结果,这些激光器旨在满足量子传感器(如光学时钟和冷原子干涉测量系统)的线宽,波长和功率要求。这包括在422 nm的锶离子光学时钟中的[5s2s1/2 - 5p2p1 /2]冷却转变,在461 nm的中性锶时钟中的[5s21S0-5p1P1]冷却转变,以及在420 nm的铷中的[5s2s1/2 - 6p2P3/2]转变。采用了几种方法来实现所需的线宽、波长和功率,包括扩展腔激光二极管(ECLD)系统和片上光栅、分布反馈(DFB) GaN激光二极管。
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GaN laser diodes for cold-atom sensing, optical atomic clocks and precision metrology
Quantum technologies containing key GaN laser components will enable a new generation of precision sensors, optical atomic clocks and secure communication systems for many applications such as next generation navigation, gravity mapping and timing since the AlGaInN material system allows for laser diodes to be fabricated over a wide range of wavelengths from the U.V. to the visible. We report our latest results on a range of AlGaInN diode-lasers targeted to meet the linewidth, wavelength and power requirements suitable for quantum sensors such as optical clocks and cold-atom interferometry systems. This includes the [5s2S1/2-5p2P1/2] cooling transition in strontium+ ion optical clocks at 422 nm, the [5s21S0-5p1P1] cooling transition in neutral strontium clocks at 461 nm and the [5s2s1/2 – 6p2P3/2] transition in rubidium at 420 nm. Several approaches are taken to achieve the required linewidth, wavelength and power, including an extended cavity laser diode (ECLD) system and an on-chip grating, distributed feedback (DFB) GaN laser diode.
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审稿时长
9 weeks
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