发明名称 |
SIGNAL LIGHT MONITORING APPARATUS, OPTICAL AMPLIFICATION APPARATUS AND OPTICAL RECEPTION APPARATUS, AND SIGNAL LIGHT MONITORING METHOD |
摘要 |
According to an aspect of an embodiment, an apparatus includes an optical branching unit for branching an input signal light in four directions, a polarization component extraction unit extracting four polarization components having mutually different polarization parameters from lights branched in four directions by the optical branching unit, and a determination unit determining input/non-input of the signal light based on the four polarization components extracted by the polarization component extraction unit. |
申请公布号 |
US2012230682(A1) |
申请公布日期 |
2012.09.13 |
申请号 |
US201213476351 |
申请日期 |
2012.05.21 |
申请人 |
YUKI MASAHIRO;NAKAMURA KENTARO;ISHIKAWA GEORGE;FUJITSU LIMITED |
发明人 |
YUKI MASAHIRO;NAKAMURA KENTARO;ISHIKAWA GEORGE |
分类号 |
H04B10/08;H04J14/02 |
主分类号 |
H04B10/08 |
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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