A compact, robust, and transportable ultra-stable laser with a fractional frequency instability of 1 x 10-15
A compact, robust, and transportable ultra-stable laser with a fractional frequency instability of 1 x 10-15
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DOI：
10.1063/1.4898334
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发表时间：
2014-11-01
影响因子：
1.6
通讯作者：
Sterr, Uwe
中科院分区：
文献类型：
--
作者：
Chen, Qun-Feng;Nevsky, Alexander;Sterr, Uwe
我们提出了一个紧凑和强大的便携式超稳定激光系统，最小分数频率不稳定性为1 × 10（-15）在1和10秒之间的积分时间。该系统被设想为将用于卫星时空探测器和量子等效原理空间测试（STE-QUEST）使命的微波光学本机振荡器子系统的原型（http：//sci.esa.int/ste-quest/）。因此，它被设计成紧凑的，以承受火箭发射过程中发生的加速度，表现出低振动灵敏度，并达到低频不稳定性。光学系统的总体尺寸为40 cm x 20 cm x 30 cm。测量了三个方向的光频加速度灵敏度分别为1.7 × 10（-11）/g、8.0 × 10（-11）/g和3.9 × 10（-10）/g，并通过三角帽测量确定了绝对频率不稳定性。另外两个腔稳定激光器用于此目的，其中一个在1 s积分时间时具有< 4 x 10（-16）的不稳定性sigma（y）。该设计对于地面应用也是适当和有用的。(C)2014 AIP Publishing LLC.
We present a compact and robust transportable ultra-stable laser system with minimum fractional frequency instability of 1 x 10(-15) at integration times between 1 and 10 s. The system was conceived as a prototype of a subsystem of a microwave-optical local oscillator to be used on the satellite mission Space-Time Explorer and QUantum Equivalence Principle Space Test (STE-QUEST) (http://sci.esa.int/ste-quest/). It was therefore designed to be compact, to sustain accelerations occurring during rocket launch, to exhibit low vibration sensitivity, and to reach a low frequency instability. Overall dimensions of the optical system are 40 cm x 20 cm x 30 cm. The acceleration sensitivities of the optical frequency in the three directions were measured to be 1.7x10(-11)/g, 8.0x10(-11)/g, and 3.9 x 10(-10)/g, and the absolute frequency instability was determined via a three-cornered hat measurement. Two additional cavity-stabilized lasers were used for this purpose, one of which had an instability sigma(y) < 4 x 10(-16) at 1 s integration time. The design is also appropriate and useful for terrestrial applications. (C) 2014 AIP Publishing LLC.