发明名称 |
Rare-earth-doped, large-mode-area, multimode, hybrid optical fibers and devices using the same |
摘要 |
A large mode area, rare-earth-doped optical fiber is configured to support multiple transverse modes of signal radiation within its core region. The fiber is a hybrid design that includes at least two axial segments having different characteristics. In a first axial segment the transverse refractive index profile is not radially uniform being characterized by a radial dip in refractive index. The first segment supports more than one transverse mode. In a second axial segment the transverse refractive index profile is more uniform than that of the first segment. The two segments are adiabatically coupled to one another. Illustratively, the second segment is a terminal portion of the fiber which facilitates coupling to other components. In one embodiment, in the first segment M 1 2 > 1.0, and in the second segment M 2 2 « M 1 2 . In a preferred embodiment, M 1 2 >> 1.0 and M 2 2 ~ 1.0. |
申请公布号 |
EP1811616(B1) |
申请公布日期 |
2017.01.04 |
申请号 |
EP20060021833 |
申请日期 |
2006.10.18 |
申请人 |
OFS Fitel, LLC |
发明人 |
Windeler, Robert S.;Yablon, Andrew D. |
分类号 |
H01S3/067;G02B6/02;G02B6/036;G02B6/14;G02B6/26 |
主分类号 |
H01S3/067 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|