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Modern optical telecommunication requires materials having a broad emission band centered on 1.5μm to use as optical amplifier in WDM systems. Oxyfluoride glass demonstrate characteristics to satisfy this demand. Thin films of Er 3+ -doped oxyfluoride glass have been produced by Pulsed laser deposition technique using a KrF pulsed excimer laser and low-pressure (1–10Pa) oxygen atmosphere....
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