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[AL17] Phase noise characterization of sub-hertz linewidth lasers via digital cross correlation
Revue Internationale avec comité de lecture : Journal optic letters, vol. 42(7), pp. 1217-1220, 2017, (doi:doi:10.1364/OL.42.001217)Mots clés: laser phase noise cross correlation
Résumé:
Phase noise or frequency noise is a key metric to evaluate
the short-term stability of a laser. This property is of great
interest for the applications but delicate to characterize, especially
for narrow linewidth lasers. In this Letter, we demonstrate
a digital cross-correlation scheme to characterize
the absolute phase noise of sub-hertz linewidth lasers.
Three 1542 nm ultra-stable lasers are used in this approach.
For each measurement, two lasers act as references to characterize
a third one. Phase noise power spectral density from
0.5 Hz to 0.8 MHz Fourier frequencies can be derived for
each laser by a mere change in the configuration of the lasers.
To the best of our knowledge, this is the first time showing
the phase noise of sub-hertz linewidth lasers with no reference
limitation.We also present an analysis of the laser phase
noise performance.
Collaboration:
SYRTE
BibTeX
| @article { | |||
| AL17, | |||
| title | = | "{Phase noise characterization of sub-hertz linewidth lasers via digital cross correlation}", | |
| author | = | "C. Alexandre and y. lecoq", | |
| journal | = | "optic letters", | |
| year | = | 2017, | |
| volume | = | 42, | |
| number | = | 7, | |
| pages | = | "1217-1220", | |
| doi | = | "doi:10.1364/OL.42.001217", | |
| } | |||
