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Nonlinear refractive index of a rare-earth-doped fiber laser
1Nonlinear Optics and Solid State Lasers Branch (DELO), Directed Energy Directorate, Air Force Research Laboratory, Kirtland Air Force Base, New Mexico 87117, USA.
Optics Letters
|November 10, 2004
Abstract:
An expression is derived for the intensity-dependent index of refraction of a rare-earth-doped fiber laser by use of a Kramers-Kronig relation and simple rate equations. The solution is applied to examine the properties of the nonlinear index of an ytterbium-doped silicate fiber laser at 975-nm pump and 1080-nm laser wavelengths.
