发明名称 |
Method of and apparatus for measuring polarization beat-length in highly-birefringent single-mode optical fibers |
摘要 |
A constant force perpendicular to the fiber axis is applied to the fiber and is displaced step by step along the fiber axis. The state of polarization of a radiation outgoing from the fiber is determined at each step and the beat-length values are obtained from both the amplitude ratio and the phase difference between the components, along the two birefringence axes, of the electrical field associated with a radiation launched into the fiber.
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申请公布号 |
US4759624(A) |
申请公布日期 |
1988.07.26 |
申请号 |
US19870058333 |
申请日期 |
1987.06.04 |
申请人 |
CSELT - CENTRO STUDI E LABORATORI TELECOMUNICAZIONI S.P.A. |
发明人 |
CALVANI, RICCARDO;COPPA, GIANNI |
分类号 |
G02B6/00;G01M11/00;(IPC1-7):G01N21/84;G01N21/21 |
主分类号 |
G02B6/00 |
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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