发明名称 |
Method and device for controlling the refractive index in an optical fiber |
摘要 |
The invention relates to a method and a device for controlling the refractive index in the core of an optical fiber. According to the invention, an optical fiber is provided with a longitudinal electrode running along the core of the fiber. An electric current is passed through the electrode to induce ohmic heating thereof, causing thermal expansion and consequently a compressing force upon the core of the fiber. This compression of the core leads to induced changes in the refractive index in the direction of the compressing force, and hence induces or alters birefringence in the core.
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申请公布号 |
US6973247(B2) |
申请公布日期 |
2005.12.06 |
申请号 |
US20040482304 |
申请日期 |
2004.12.03 |
申请人 |
ACREO AB |
发明人 |
FOKINE MICHAEL;NILSSON LARS-ERIK;CLAESSON AASA;MARGULIS WALTER;KJELLBERG LEIF;ARSALANE HANIA;TORRES PEDRO |
分类号 |
G02B6/024;C03C17/00;C03C25/10;G02B6/02;G02B6/10;G02B6/26;G02B6/34;G02B6/44;G02F1/01;(IPC1-7):G02B6/02;G02B6/16 |
主分类号 |
G02B6/024 |
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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