论文标题
下一代便携式光学时钟的微型光学频率标准
Miniaturized optical frequency standard for next-generation portable optical clocks
论文作者
论文摘要
光学频率标准标准，稳定在原子或分子跃迁的激光器在长度计量和激光范围内广泛使用，为光学通信提供了骨架，并位于下一代光原子钟的核心。在这里，我们演示了一个基于在微观磁场面包板上实现的778 nm的Rubidium-87中的无多普勒，两光子过渡的紧凑，低功率光频率标准。光学标准的分数频率稳定性为2.9x10 $^{ - 12} $/$/$ \sqrtτ$，用于平均时间$τ$小于10 $^{3} $ s，体积的$ \ $ \ $ 35 cm $^3 $，可在$ \ \ $ 450 mw的电力上运行。这些结果证明了朝着紧凑型光钟发展和可si-Tabe-tabentable波长参考的广泛传播迈出的关键步骤。
Optical frequency standards, lasers stabilized to atomic or molecular transitions, are widely used in length metrology and laser ranging, provide a backbone for optical communications and lie at the heart of next-generation optical atomic clocks. Here we demonstrate a compact, low-power optical frequency standard based on the Doppler-free, two-photon transition in rubidium-87 at 778 nm implemented on a micro-optics breadboard. The optical standard achieves a fractional frequency stability of 2.9x10$^{-12}$/$\sqrtτ$ for averaging times $τ$ less than 10$^{3}$ s, has a volume of $\approx$35 cm$^3$ and operates on $\approx$450 mW of electrical power. These results demonstrate a key step towards the development of compact optical clocks and the broad dissemination of SI-traceable wavelength references.
