Output spectrum of Yb-doped fiber lasers

An analytical model for self phase modulation in Yb-doped fiber laser (YDFL) describing output spectrum and its broadening with increasing power has been developed. Spectral measurements in continuous wave (CW) cladding-pumped YDFL have proved the validity of the model demonstrating hyperbolic secan...

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Bibliographic Details
Published in:Optics letters 2012-07, Vol.37 (13), p.2508-2510
Main Authors: Kablukov, S I, Zlobina, E A, Podivilov, E V, Babin, S A
Format: Article
Language:English
Subjects:
Cladding
Continuous wave
Fiber lasers
Hole burning
Mathematical analysis
Mathematical models
Phase modulation
Spectral lines
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Summary:An analytical model for self phase modulation in Yb-doped fiber laser (YDFL) describing output spectrum and its broadening with increasing power has been developed. Spectral measurements in continuous wave (CW) cladding-pumped YDFL have proved the validity of the model demonstrating hyperbolic secant shape of the spectrum and linear increase of the line width with power in 1-12 W range. At lower powers, spatial hole burning and line self-sweeping effects become important and define the lower limit for the line width.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.37.002508