EFFECT OF PROTON IMPLANTATION ON THE PHOTOSENSITIVITY OF SMF-28 OPTICAL FIBER

Abstract Protons accelerated to multi-MeV energy have enough range in silica to reach the core of 125 μm-diameter single-mode telecommunication optical fibers located 62.5 μm under the outside surface. As a result of proton implantation, a waveguiding region appears near the end of range of the protons. After proton implantation in the core at doses of 5 × 10 15 H + /cm 2 or less the photosensitivity of proton-implanted fibers with respect to ArF excimer laser light was found to decrease.

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