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High-performance iodine fiber frequency standard

机译:高性能碘纤维频率标准

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摘要

We have constructed a compact and robust optical frequency standard based around iodine vapor loaded into the core of a hollow-core photonic crystal fiber (HC-PCF). A 532 nm laser was frequency locked to one hyperfine component of the R(56) 32-0 ~(127)I_(2) transition using modulation transfer spectroscopy. The stabilized laser demonstrated a frequency stability of 2.3 X 10~(-12) at 1 s, almost an order of magnitude better than previously reported for a laser stabilized to a gas-filled HC-PCF. This limit is set by the shot noise in the detection system. We present a discussion of the current limitations to the performance and a route to improve the performance by more than an order of magnitude.
机译:我们基于加载到空心光子晶体光纤(HC-PCF)的芯中的碘蒸气,构建了一个紧凑而强大的光频率标准。使用调制转移光谱法将一532 nm激光器锁频到R(56)32-0〜(127)I_(2)跃迁的一个超精细分量。稳定的激光器在1 s时表现出2.3 X 10〜(-12)的频率稳定性,几乎比以前报道的稳定到充气HC-PCF激光器的频率稳定性高一个数量级。此限制由检测系统中的散粒噪声设置。我们将讨论当前对性能的限制以及将性能提高一个数量级以上的途径。

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