Er3+ doped phosphor tellurite glass for broadband short length Er3+ doped fiber

Er3+-doped phosphor-tellurite glass for broadband short-length Er3+-doped fiber amplifier (EDFA) is fabricated and characterized. The differential value (\DeltaT] of onset crystalline temperature (Tx) and glass transition temperature (Tg) is 206 oC. The stimulated emission cross section of Er3+ is c