发明名称 |
Depolarizer for a fiber optic gyroscope (fog) using high birefringence photonic crystal fiber |
摘要 |
An environmentally robust fiber depolarizer for a fiber optic gyroscope. The depolarizer includes substantially a clockwise propagating leg and a counterclockwise propagating leg, distally coupled at opposite ends of a gyroscope sensing coil. The fiber depolarizer is formed of high birefringence photonic crystal fiber bonded segments. The fiber depolarizer reduces Shupe effect in a FOG and/or depolarizes the light anywhere in the optical circuit of a FOG. The Shupe effect reduction depolarizers may be packaged apart from the FOG sense coil, or wound in a symmetric pattern on the outer diameter of the FOG sense coil.
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申请公布号 |
EP2230484(A1) |
申请公布日期 |
2010.09.22 |
申请号 |
EP20100153643 |
申请日期 |
2010.02.15 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
STRANDJORD, LEE;WILLIAMS, WES |
分类号 |
G01C19/72 |
主分类号 |
G01C19/72 |
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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