By using two sections of erbium doped fiber and a fiber optical reflector, a novel, highly efficient L-band amplifier is demonstrated with significantly power-conversion-efficiency enhancement and the gain increasing ...By using two sections of erbium doped fiber and a fiber optical reflector, a novel, highly efficient L-band amplifier is demonstrated with significantly power-conversion-efficiency enhancement and the gain increasing of as much as 13 dB.展开更多
Er^3＋-doped phosphor-tellurite glass for broadband short-length Er^3＋-doped fiber amplifier （EDFA） is fabricated and characterized. The differential value （AT） of onset crystalline temperature （Tx） and glass t...Er^3＋-doped phosphor-tellurite glass for broadband short-length Er^3＋-doped fiber amplifier （EDFA） is fabricated and characterized. The differential value （AT） of onset crystalline temperature （Tx） and glass transition temperature （Tg） is 206 ℃. The stimulated emission cross section of Er^3＋ is calculated from absorption spectrum by McCumber theory and is 0.87 × 10 ^-20 cm^2 at 1532 nm. A broad 1.5-μm fluorescence spectrum with 54-nm full-width at half maximum （FWHM） is demonstrated. Especially, the maximum phonon energy of undoped phosphor-tellurite glass is 1100 cm^- 1, which restricts the upconversion luminescence. It is possible to pump efficiently at 980 nm. These results indicate Er^3＋-doped phosphor-tellurite glass is suitable for fabricating broadband short-length EDFA.展开更多
文摘By using two sections of erbium doped fiber and a fiber optical reflector, a novel, highly efficient L-band amplifier is demonstrated with significantly power-conversion-efficiency enhancement and the gain increasing of as much as 13 dB.
基金the Instrument Science and Technology Opening Fund of Zhejiang Key Discipline(No.2006KF05)the National Natural Science Foundation of China(No.50502030 and 60508014).
文摘Er^3＋-doped phosphor-tellurite glass for broadband short-length Er^3＋-doped fiber amplifier （EDFA） is fabricated and characterized. The differential value （AT） of onset crystalline temperature （Tx） and glass transition temperature （Tg） is 206 ℃. The stimulated emission cross section of Er^3＋ is calculated from absorption spectrum by McCumber theory and is 0.87 × 10 ^-20 cm^2 at 1532 nm. A broad 1.5-μm fluorescence spectrum with 54-nm full-width at half maximum （FWHM） is demonstrated. Especially, the maximum phonon energy of undoped phosphor-tellurite glass is 1100 cm^- 1, which restricts the upconversion luminescence. It is possible to pump efficiently at 980 nm. These results indicate Er^3＋-doped phosphor-tellurite glass is suitable for fabricating broadband short-length EDFA.
