We present a compact and robust transportable ultra-stable laser system with minimum fractional frequency instability of 1 × 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 × 20 cm × 30 cm. The acceleration sensitivities of the optical frequency in the three directions were measured to be 1.7 × 10-11/g, 8.0 × 10-11/g, and 3.9 × 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 σy < 4 × 10-16 at 1 s integration time. The design is also appropriate and useful for terrestrial applications.


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    Title :

    A compact, robust, and transportable ultra-stable laser with a fractional frequency instability of 1 x 10-15


    Contributors:

    Published in:

    Review of Scientific Instruments ; 85 , 11, Pt. 1 ; 113107/1-113107/8


    Publication date :

    2014


    Size :

    8 Seiten, Bilder, 27 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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