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公开(公告)号：US09574956B2
公开(公告)日：2017-02-21
申请号：US14405938
申请日：2013-06-06
Applicant: Technical University of Denmark
Inventor： Kasper Reck , Christian Østergaard , Ole Hansen , Erik Vilain Thomsen
CPC classification number: G01L1/246 , G01L11/02 , G01N21/55 , G01N2201/061 , G01N2201/0633 , G01N2201/084 , G02B6/10
Abstract: The present invention relates to an all-optical sensor utilizing effective index modulation of a waveguide and detection of a wavelength shift of reflected light and a force sensing system accommodating said optical sensor. One embodiment of the invention relates to a sensor system comprising at least one multimode light source, one or more optical sensors comprising a multimode sensor optical waveguide accommodating a distributed Bragg reflector, at least one transmitting optical waveguide for guiding light from said at least one light source to said one or more multimode sensor optical waveguides, a detector for measuring light reflected from said Bragg reflector in said one or more multimode sensor optical waveguides, and a data processor adapted for analyzing variations in the Bragg wavelength of at least one higher order mode of the reflected light.
Abstract translation: 本发明涉及利用波导的有效折射率调制和检测反射光的波长偏移的全光学传感器以及容纳所述光学传感器的力感测系统。 本发明的一个实施例涉及包括至少一个多模光源的传感器系统，一个或多个光学传感器，其包括容纳分布式布拉格反射器的多模传感器光波导，至少一个发射光波导，用于引导来自所述至少一个光的光 源到所述一个或多个多模传感器光波导，用于测量在所述一个或多个多模传感器光波导中从所述布拉格反射器反射的光的检测器，以及适于分析至少一个高阶模的布拉格波长的变化的数据处理器 的反射光。
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公开(公告)号：US20150131100A1
公开(公告)日：2015-05-14
申请号：US14405938
申请日：2013-06-06
Applicant: Technical University of Denmark
Inventor： Kasper Reck , Christian Østergaard , Ole Hansen , Erik Vilain Thomsen
CPC classification number: G01L1/246 , G01L11/02 , G01N21/55 , G01N2201/061 , G01N2201/0633 , G01N2201/084 , G02B6/10
Abstract: The present invention relates to an all-optical sensor utilizing effective index modulation of a waveguide and detection of a wavelength shift of reflected light and a force sensing system accommodating said optical sensor. One embodiment of the invention relates to a sensor system comprising at least one multimode light source, one or more optical sensors comprising a multimode sensor optical waveguide accommodating a distributed Bragg reflector, at least one transmitting optical waveguide for guiding light from said at least one light source to said one or more multimode sensor optical waveguides, a detector for measuring light reflected from said Bragg reflector in said one or more multimode sensor optical waveguides, and a data processor adapted for analyzing variations in the Bragg wavelength of at least one higher order mode of the reflected light.
Abstract translation: 本发明涉及利用波导的有效折射率调制和检测反射光的波长偏移的全光学传感器以及容纳所述光学传感器的力感测系统。 本发明的一个实施例涉及包括至少一个多模光源的传感器系统，一个或多个光学传感器，其包括容纳分布式布拉格反射器的多模传感器光波导，至少一个发射光波导，用于引导来自所述至少一个光的光 源到所述一个或多个多模传感器光波导，用于测量在所述一个或多个多模传感器光波导中从所述布拉格反射器反射的光的检测器，以及适于分析至少一个高阶模的布拉格波长的变化的数据处理器 的反射光。
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公开(公告)号：US20160123829A1
公开(公告)日：2016-05-05
申请号：US14896357
申请日：2014-06-04
Applicant: Technical University of Denmark
Inventor： Kasper Reck , Christian Østergaard , Ole Hansen , Erik Vilain Thomsen
IPC: G01L9/00
CPC classification number: G01L9/0076 , G01L23/16 , H04R23/008 , H04R2201/003
Abstract: The present invention relates to an all-optical pressure sensor comprising a waveguide accommodating a distributed Bragg reflector. Pressure sensing can then be provided by utilizing effective index modulation of the waveguide and detection of a wavelength shift of light reflected from the Bragg reflector. Sound sensing may also be provided thereby having an all-optical microphone. One embodiment of the invention relates to an optical pressure sensor comprising at least one outer membrane and a waveguide, the waveguide comprising at least one core for confining and guiding light, at least one distributed Bragg reflector located in said at least one core, and at least one inner deflecting element forming at least a part of the core, wherein the pressure sensor is configured such that the geometry and/or dimension of the at least one core is changed when the at least one outer membrane is submitted to pressure.
Abstract translation: 全光压力传感器技术领域本发明涉及一种全光压力传感器，其包括容纳分布式布拉格反射器的波导。 然后可以通过利用波导的有效折射率调制和从布拉格反射器反射的光的波长偏移的检测来提供压力感测。 也可以提供声音感测，从而具有全光麦克风。 本发明的一个实施例涉及一种包括至少一个外膜和波导的光学压力传感器，该波导包括用于限制和引导光的至少一个芯，至少一个位于所述至少一个芯中的分布式布拉格反射器，以及位于 至少一个内部偏转元件，其形成所述芯的至少一部分，其中所述压力传感器被构造成使得当所述至少一个外膜被施加压力时所述至少一个芯的几何形状和/或尺寸改变。
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公开(公告)号：US09658123B2
公开(公告)日：2017-05-23
申请号：US14896357
申请日：2014-06-04
Applicant: Technical University of Denmark
Inventor： Kasper Reck , Christian Østergaard , Ole Hansen , Erik Vilain Thomsen
CPC classification number: G01L9/0076 , G01L23/16 , H04R23/008 , H04R2201/003
Abstract: The present invention relates to an all-optical pressure sensor comprising a waveguide accommodating a distributed Bragg reflector. Pressure sensing can then be provided by utilizing effective index modulation of the waveguide and detection of a wavelength shift of light reflected from the Bragg reflector. Sound sensing may also be provided thereby having an all-optical microphone. One embodiment of the invention relates to an optical pressure sensor comprising at least one outer membrane and a waveguide, the waveguide comprising at least one core for confining and guiding light, at least one distributed Bragg reflector located in said at least one core, and at least one inner deflecting element forming at least a part of the core, wherein the pressure sensor is configured such that the geometry and/or dimension of the at least one core is changed when the at least one outer membrane is submitted to pressure.
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