20 February 2007 Fibers with resonant mode suppression
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Noise can limit the power in a fiber amplifier by competing with the signal for gain. Disributed filtering offers a way of overcoming current high-power limitations by selectively removing noise before it is amplified. Resonant mode suppression is a flexible strategy for wavelength filtering as well as suppression of unwanted transverse modes. An Yb-doped gain fiber with distributed filtering of stimulated Raman scattering (SRS) was demonstrated in a cladding-pumped amplifier. Substantial suppression of SRS was demonstrated in this fiber, with a core and resonant Ge-doped ring made using standard solid-fiber fabrication. Simulations explore generalizations to large-mode-area and filters with multiple band-stop features.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. M. Fini, J. M. Fini, M. D. Mermelstein, M. D. Mermelstein, M. F. Yan, M. F. Yan, R. T. Bise, R. T. Bise, A. D. Yablon, A. D. Yablon, P. W. Wisk, P. W. Wisk, M. J. Andrejco, M. J. Andrejco, "Fibers with resonant mode suppression", Proc. SPIE 6453, Fiber Lasers IV: Technology, Systems, and Applications, 64530F (20 February 2007); doi: 10.1117/12.717622; https://doi.org/10.1117/12.717622

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