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  • Title: Test of spectral emission and absorption characteristics of active optical fibers by direct side pumping.
    Author: Zhang J, Luo Y, Sathi ZM, Azadpeyma N, Peng GD.
    Journal: Opt Express; 2012 Aug 27; 20(18):20623-8. PubMed ID: 23037109.
    Abstract:
    Emission and absorption are two main properties of active optical fibers that are important for fiber amplifiers and lasers. We propose a direct side pumping scheme for non-deconstructive evaluation of active optical fibers. This scheme enables a simple in situ test of both emission and absorption characteristics without cutting fiber and produces good accuracy with very low pumping background. A commercial Er-doped fiber and a home-made Bi/Er co-doped optical fiber have been tested to demonstrate that the scheme is a useful alternative technique for characterizing active optical fiber or waveguides.
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