How does Third-Harmonic-Generation affect laser linewidth? @yourfavouriteta
How does Third-Harmonic-Generation affect laser linewidth?  @yourfavouriteta
Uploaded November 2024 | Updated September 2026, 2 weeks ago
Explanations of phase noise:
opg.optica.org/oe/fulltext.cfm?uri=oe-20-5-5291&id=227860
https://books.google.dk/books?id=iUld6xblvo0C&pg=PA45&source=gbs_toc_r&cad=2#v=onepage&q&f=false

IEEE definitions of phase noise, power spectra etc.:
cwe.ccsds.org/sea/docs/SEA-TIME/Reference%20Materials/IEEE%20Standard%20Definitions%20of%20Physical%20Quantities%20for%20Fundamental%20Frequency%20and%20Time%20Metrology---Random%20Instabilities.pdf

Autocorrelations and WKT:
comm.utoronto.ca/~frank/notes/wk.pdf
ieee802.org/3/ae/public/adhoc/serial_pmd/documents/useful_IN_formulas.pdf
https://www.unine.ch/files/live/sites/ltf/files/shared/Publications/2017/2017_IEEE-TUFFC_64_1766-1775.pdf

The log-normal distribution:
en.wikipedia.org/wiki/Log-normal_distribution

Link to Python notebook used for simulation in this video:
github.com/OleKrarup123/NLSE-vector-solver/blob/main/TutorialVideos/Linewidth-Video/linewidth.ipynb

SHG increases phase noise power by 6dB (= factor of 4):
https://hal.science/hal-02066183v1/document
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How does Third-Harmonic-Generation affect laser linewidth?

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