发明名称 |
Method and apparatus for preventing distortion of powerful fiber-laser systems by backreflected signals |
摘要 |
A powerful fiber laser system is configured with at least one filtering element capable of preventing a backreflected Raman component of the main signal from propagating along the upstream stretch of the system. The filtering element includes a slanted fiber grating, one or more cladding formations disposed in a cladding of fiber and having a refractive index greater than that one of the cladding, but lower than a refractive index of the core, and/or a combination of two spaced apart single mode fibers and a low mode fiber spliced to the opposing ends of the respective SM fibers.
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申请公布号 |
US7912099(B2) |
申请公布日期 |
2011.03.22 |
申请号 |
US20080288497 |
申请日期 |
2008.10.21 |
申请人 |
GAPONTSEV VALENTIN P;SHCHERBAKOV EUGENE;FOMIN VALENTIN |
发明人 |
GAPONTSEV VALENTIN P.;SHCHERBAKOV EUGENE;FOMIN VALENTIN |
分类号 |
H01S3/30 |
主分类号 |
H01S3/30 |
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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