发明授权
- 专利标题： Dual mode fiber-optic interferometer with circular-core fibers and birefringent modal filters and an interfering method thereof
- 专利标题（中）： 具有圆芯纤维和双折射模态滤波器的双模光纤干涉仪及其干扰方法
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申请号： US10447623申请日： 2003-05-29
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公开(公告)号： US07030992B2公开(公告)日： 2006-04-18
- 发明人: Tien-Jung Chen , Shu-Hsia Chen
- 申请人： Tien-Jung Chen , Shu-Hsia Chen
- 代理机构： The Webb Law Firm
- 优先权： TW91111785A 20020531
- 主分类号： G01B9/02
- IPC分类号： G01B9/02
摘要：
A fiber-optic interferometer is provided. The interferometer includes a first dual-mode optical fiber for receiving a light input and exciting a first and a second spatial, modes, a first modal processor connected to the first dual-mode optical fiber for selecting the first and the second spatial modes, a second dual-mode optical fiber connected to the first modal processor for propagating the first and the second spatial modes and producing a phase shift (Δφ) between the first and the second spatial modes in response to an external perturbation effect, a second modal processor connected to the second dual-mode optical fiber for re-selecting the first and the second spatial modes and producing a first light output interference pattern, and an analyzer connected to the second modal filter for adjusting the first light output interference pattern to produce a second light output interference pattern.
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