| 发明名称 | Fibre-optic sensor and use thereof | ||
| 摘要 | The invention relates to a fiber-optic sensor comprising an optical waveguide having at least one first core and a cladding surrounding the first core, wherein the first core extends substantially over the entire length of the optical waveguide, wherein the sensor has at least one second core which is at least partly surrounded by the cladding, wherein the longitudinal extent of the second core is less than the total length of the optical waveguide and at least one Bragg grating is introduced into the second core. Furthermore, the invention relates to a use of the fiber-optic sensor. | ||
| 申请公布号 | US9612394(B2) | 申请公布日期 | 2017.04.04 |
| 申请号 | US201414779998 | 申请日期 | 2014.03.18 |
| 申请人 | Fraunhofer Gesellschaft Zur Forderung Der Angew. Forschung E.V. | 发明人 | Schade Wolfgang;Burgmeier Jörg |
| 分类号 | G02B6/00;G02B6/02;G01D5/353;G01B11/16;G01D5/26 | 主分类号 | G02B6/00 |
| 代理机构 | Alix, Yale & Ristas, LLP | 代理人 | Alix, Yale & Ristas, LLP |
| 主权项 | 1. A fiber-optic sensor, comprising an optical waveguide, which has at least one first core and a cladding surrounding the first core, wherein the first core extends substantially over the entire length of the optical waveguide, wherein said sensor has at least one second core which is at least partly surrounded by the cladding, wherein the longitudinal extension of the second core is less than the total length of the optical waveguide and at least one Bragg grating is arranged in the second core, said at least one Bragg grating configured to reflect a portion of light guided in said second core, said reflected portion coupled to said first core such that a wavelength shift of said reflected portion due to temperature or mechanical strain can be detected. | ||
| 地址 | Munich DE | ||