发明名称 |
Enhanced pump absorbing double-clad fiber |
摘要 |
An optical fiber amplifier is considered comprising a mono-mode core, a first cladding around said core and at least a further cladding around said first cladding while said first cladding includes a ring shaped active region doped with rare earth material surrounding said mono-mode core. Advantageously, the first cladding is designed with a radial refractive index following an almost continuous decreasing function for increasing radius. The use of a continuously decreasing refractive index for the cladding at the outer border of the ring shaped active medium optimize the efficiency of the coupling between the core and the cladding.
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申请公布号 |
US2004085623(A1) |
申请公布日期 |
2004.05.06 |
申请号 |
US20030671482 |
申请日期 |
2003.09.29 |
申请人 |
ALCATEL |
发明人 |
PROVOST LIONEL;SIMONNEAU CHRISTIAN;BONGRAND ISABELLE;BOUSSELET PHILIPPE;MOREAU CHRISTINE;BAYART DOMINIQUE;GASCA LAURENT |
分类号 |
H01S3/067;(IPC1-7):H01S3/00 |
主分类号 |
H01S3/067 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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