发明名称 |
MEASUREMENT OF FIBER TWIST BY POLARIZATION TRACKING |
摘要 |
<p>An apparatus and accompanying method to measure fiber twist. The method includes independent determination of fiber bending by measuring strain sensing in outer cores of the same fiber. The apparatus includes a multi-core optical fiber comprising a center core and a plurality of peripheral cores at a distance radially from the center core and running parallel to the center core. The center core includes at least one fiber Bragg grating with polarization-dependent reflectivity. The fiber Bragg grating reflects the launched light as reflected light. The apparatus includes a multi-core optical fiber bend sensing system operable to communicate with the multi-core optical fiber. The multi-core optical fiber bend sensing system is operable to sense a bend in the multi-core optical fiber. The apparatus includes a processor operable to communicate with the polarization controller.</p> |
申请公布号 |
WO2010054262(A1) |
申请公布日期 |
2010.05.14 |
申请号 |
WO2009US63644 |
申请日期 |
2009.11.06 |
申请人 |
THE GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY;ASKINS, CHARLES, G. |
发明人 |
ASKINS, CHARLES, G. |
分类号 |
G02B6/00 |
主分类号 |
G02B6/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|