Measuring the nonlinear phase shift in a mode-locked laser

The spectrum of a mode-locked laser (MLL) is down-mixed to electrical frequencies using a tunable continuous-wave laser. By characterizing the sub-threshold low-intensity emission relative to the laser mode positions, one can measure the nonlinear phase shift of the MLL while in operation.

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Bibliographic Details
Published in:Optics letters 2019-05, Vol.44 (10), p.2406-2409
Main Authors: Perilla Rozo, Carlos Andres, Genest, Jérôme, Deschênes, Jean-Daniel
Format: Article
Language:English
Subjects:
Continuous wave lasers
Laser modes
Lasers
Phase shift
Tunable lasers
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Description
Summary:The spectrum of a mode-locked laser (MLL) is down-mixed to electrical frequencies using a tunable continuous-wave laser. By characterizing the sub-threshold low-intensity emission relative to the laser mode positions, one can measure the nonlinear phase shift of the MLL while in operation.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.44.002406