Optica Open
Browse

Correlated self-heterodyne method for ultra-low-noise laser linewidth measurements

Download (5.58 kB)
preprint
posted on 2023-11-30, 20:46 authored by Zhiquan Yuan, Heming Wang, Peng Liu, Bohan Li, Boqiang Shen, Maodong Gao, Lin Chang, Warren Jin, Avi Feshali, Mario Paniccia, John Bowers, Kerry Vahala
Narrow-linewidth lasers are important to many applications spanning precision metrology to sensing systems. Characterization of these lasers requires precise measurements of their frequency noise spectra. Here we demonstrate a correlated self-heterodyne (COSH) method capable of measuring frequency noise as low as 0.01 Hz$^2$/Hz at 1 MHz offset frequency. The measurement setup is characterized by both commercial and lab-built lasers, and features low optical power requirements, fast acquisition time and high intensity noise rejection.

History

Disclaimer

This arXiv metadata record was not reviewed or approved by, nor does it necessarily express or reflect the policies or opinions of, arXiv.

Usage metrics

    Categories

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC