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公开(公告)号：US20120186353A1
公开(公告)日：2012-07-26
申请号：US13356432
申请日：2012-01-23
Applicant: Onur Kilic , Olav Solgaard , Michel J.F. Digonnet , Gordon S. Kino
Inventor： Onur Kilic , Olav Solgaard , Michel J.F. Digonnet , Gordon S. Kino
IPC: G01H9/00
Abstract: An acoustic sensor includes at least one photonic crystal structure and an optical fiber in optical communication with the at least one photonic crystal structure. The at least one photonic crystal structure has at least one optical resonance with a resonance frequency and a resonance lineshape, wherein at least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the acoustic sensor. The acoustic sensor further includes an optical fiber in optical communication with the at least one photonic crystal structure. The optical fiber is configured to transmit light which impinges the at least one photonic crystal structure and to receive at least a portion of the light which impinges the at least one photonic crystal structure.
Abstract translation: 声学传感器包括至少一个光子晶体结构和与所述至少一个光子晶体结构光学通信的光纤。 至少一个光子晶体结构具有至少一个具有谐振频率和谐振线形的光学谐振，其中谐振频率和谐振线形形状中的至少一个对入射到声学传感器上的声波作出响应。 声学传感器还包括与至少一个光子晶体结构光学通信的光纤。 光纤被配置为透射照射至少一个光子晶体结构的光并且接收照射至少一个光子晶体结构的光的至少一部分。
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公开(公告)号：US20110176140A1
公开(公告)日：2011-07-21
申请号：US13027873
申请日：2011-02-15
Applicant: Stéphane Blin , Michel J.F. Digonnet , Gordon S. Kino , Seth Lloyd
Inventor： Stéphane Blin , Michel J.F. Digonnet , Gordon S. Kino , Seth Lloyd
IPC: G01C19/72
CPC classification number: G01C19/721
Abstract: A fiber-optic sensor includes an optical fiber coil and a laser source optically coupled to the coil. Light from the source is transmitted to the coil as a first optical signal and a second optical signal counter-propagating through the coil. The optical paths of the first optical signal and the second optical signal are substantially reciprocal with one another and the first optical signal and the second optical signal are combined together after counter-propagating through the coil to generate a third optical signal. The laser source is frequency-modulated or can have a coherence length longer than a length of the coil.
Abstract translation: 光纤传感器包括光纤线圈和光耦合到线圈的激光源。 来自光源的光作为第一光信号传输到线圈，第二光信号通过线圈反向传播。 第一光信号和第二光信号的光路基本上互相倒数，并且第一光信号和第二光信号在通过线圈反向传播之后被组合在一起，以产生第三光信号。 激光源被调频，或者可以具有比线圈长度更长的相干长度。
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43.发明申请公开(公告)号：US20110041616A1
公开(公告)日：2011-02-24
申请号：US12874104
申请日：2010-09-01
Applicant: Onur Kilic , Olav Solgaard , Michel J.F. Digonnet , Gordon S. Kino
Inventor： Onur Kilic , Olav Solgaard , Michel J.F. Digonnet , Gordon S. Kino
IPC: G01H9/00
Abstract: An acoustic sensor includes at least one structure including at least one photonic crystal slab and an optical fiber optically coupled to the at least one photonic crystal slab, and having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing mechanically coupled to the at least one structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.
Abstract translation: 声学传感器包括至少一个结构，其包括至少一个光子晶体板和光学耦合到所述至少一个光子晶体板的光纤，并且具有至少一个具有谐振频率和谐振线形的光学谐振。 声学传感器还包括机械地联接到所述至少一个结构的壳体。 谐振频率和谐振线形形状中的至少一个响应于入射到壳体上的声波。
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公开(公告)号：US20110001981A1
公开(公告)日：2011-01-06
申请号：US12792631
申请日：2010-06-02
Applicant: Michel J.F. Digonnet , Shanhui Fan , He Wen , Matthew A. Terrel
Inventor： Michel J.F. Digonnet , Shanhui Fan , He Wen , Matthew A. Terrel
CPC classification number: G01J9/0246 , G01D5/35316 , G01K11/3206 , G01L1/246 , G02B6/02076 , G02B6/0208
Abstract: In certain embodiments, an optical device and a method of use is provided. The optical device includes a fiber Bragg grating having a substantially periodic refractive index modulation along a length of the fiber Bragg grating. The fiber Bragg grating has a power transmission spectrum with a plurality of local transmission minima, wherein each pair of neighboring local transmission minima has a local transmission maximum therebetween. The local transmission maximum has a maximum power at a transmission peak wavelength. The optical device further includes a narrowband optical source in optical communication with a first optical path and a second optical path. The narrowband optical source is configured to generate light having a wavelength at or in the vicinity of a local transmission maximum or at or in the vicinity of a wavelength at which the power transmission spectrum has a maximum slope between a local transmission maximum and either one of two local transmission minima neighboring the local transmission maximum.
Abstract translation: 在某些实施例中，提供了光学装置和使用方法。 光学装置包括光纤布拉格光栅，其具有沿着光纤布拉格光栅的长度的基本上周期性的折射率调制。 光纤布喇格光栅具有多个局部透射最小值的功率透射光谱，其中每对相邻的局部透射最小值在其间具有局部透射最大值。 本地传输最大值在传输峰值波长处具有最大功率。 光学装置还包括与第一光路和第二光路光学通信的窄带光源。 窄带光源被配置为产生具有在本地发射最大值附近或附近的波长的光，或者在功率透射光谱具有局部透射最大值与本发明最大值之间的最大斜率的波长附近或附近 两个本地传输最小值相邻本地传输最大值。
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公开(公告)号：US20100309474A1
公开(公告)日：2010-12-09
申请号：US12770545
申请日：2010-04-29
Applicant: Onur Kilic , Michel J.F. Digonnet , Gordon S. Kino , Olav Solgaard
Inventor： Onur Kilic , Michel J.F. Digonnet , Gordon S. Kino , Olav Solgaard
IPC: G01C19/72
CPC classification number: G01C19/56 , G01C19/5712 , G01C19/5776 , Y10T29/49609
Abstract: A gyroscope and a method of detecting rotation are provided. The gyroscope includes a structure configured to be driven to move about a drive axis. The structure is further configured to move about a sense axis in response to a Coriolis force generated by rotation of the structure about a rotational axis while moving about the drive axis. The gyroscope further includes an optical sensor system configured to optically measure movement of the structure about the sense axis. In certain embodiments, the gyroscope is a microelectromechanical system (MEMS) gyroscope.
Abstract translation: 提供了陀螺仪和旋转检测方法。 陀螺仪包括构造成被驱动以围绕驱动轴线移动的结构。 该结构进一步构造成响应于围绕驱动轴线移动而围绕旋转轴线的旋转旋转产生的科里奥利力而围绕感测轴移动。 陀螺仪还包括光学传感器系统，其被配置为光学地测量围绕感测轴的结构的移动。 在某些实施例中，陀螺仪是微机电系统（MEMS）陀螺仪。
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Patent Agency Ranking
公开(公告)号：US20090263090A1
公开(公告)日：2009-10-22
申请号：US12435294
申请日：2009-05-04
Applicant: Vinayak Dangui , Michel J.F. Digonnet , Gordon S. Kino
Inventor： Vinayak Dangui , Michel J.F. Digonnet , Gordon S. Kino
CPC classification number: G02B6/02042 , G02B6/02328 , G02B6/02338 , G02B6/02347 , G02B6/2821
Abstract: An optical fiber includes a cladding, a first core, and a second core. At least one of the first core and the second core is hollow and is substantially surrounded by the cladding. At least a portion of the first core is generally parallel to and spaced from at least a portion of the second core. The optical fiber includes a defect substantially surrounded by the cladding, the defect increasing a coupling coefficient between the first core and the second core.
Abstract translation: 光纤包括包层，第一芯和第二芯。 第一芯和第二芯中的至少一个是中空的并且基本上被包层包围。 第一芯的至少一部分通常与第二芯的至少一部分平行并间隔开。 光纤包括基本上被包层围绕的缺陷，缺陷增加了第一芯和第二芯之间的耦合系数。
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公开(公告)号：US20090208163A1
公开(公告)日：2009-08-20
申请号：US12369709
申请日：2009-02-11
Applicant: Onur Kilic , Olav Solgaard , Michel J.F. Digonnet , Gordon S. Kino
Inventor： Onur Kilic , Olav Solgaard , Michel J.F. Digonnet , Gordon S. Kino
IPC: G02B6/00
Abstract: An acoustic sensor includes at least one photonic crystal structure having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing mechanically coupled to the at least one photonic crystal structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.
Abstract translation: 声传感器包括至少一个光子晶体结构，其具有至少一个具有谐振频率和谐振线形的光学谐振。 声学传感器还包括机械耦合到所述至少一个光子晶体结构的壳体。 谐振频率和谐振线形形状中的至少一个响应于入射到壳体上的声波。
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48.发明申请公开(公告)号：US20090192769A1
公开(公告)日：2009-07-30
申请号：US12369671
申请日：2009-02-11
Applicant: Vinayak Dangui , Michel J.F. Digonnet , Gordon S. Kino
Inventor： Vinayak Dangui , Michel J.F. Digonnet , Gordon S. Kino
CPC classification number: G02B6/02328 , B82Y20/00 , G02B6/02323 , G02B6/02338 , G02B6/02347
Abstract: A method and apparatus models one or more electromagnetic field modes of a waveguide. The method includes calculating a first matrix having a plurality of elements and having a first bandwidth using a refractive index profile of the waveguide. The plurality of elements of the first matrix represents an action of Maxwell's equations on a transverse magnetic field within the waveguide. The method further includes rearranging the plurality of elements of the first matrix to form a second matrix having a second bandwidth smaller than the first bandwidth. The method further includes shifting the second matrix and inverting the shifted second matrix to form a third matrix. The method further includes calculating one or more eigenvalues or eigenvectors of the third matrix corresponding to one or more modes of the waveguide.
Abstract translation: 一种对波导的一个或多个电磁场模式进行建模的方法和装置。 该方法包括使用波导的折射率分布来计算具有多个元素并具有第一带宽的第一矩阵。 第一矩阵的多个元素表示麦克斯韦方程对波导内的横向磁场的作用。 该方法还包括重排第一矩阵的多个元素以形成具有小于第一带宽的第二带宽的第二矩阵。 该方法还包括移动第二矩阵并使移位的第二矩阵反转以形成第三矩阵。 该方法还包括计算与波导的一个或多个模式对应的第三矩阵的一个或多个特征值或特征向量。
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公开(公告)号：US20080180681A1
公开(公告)日：2008-07-31
申请号：US11770613
申请日：2007-06-28
Applicant: Michel J.F. Digonnet
Inventor： Michel J.F. Digonnet
IPC: G01B9/02
CPC classification number: G01C19/722 , G02B6/02328 , G02B6/02361
Abstract: An optical sensor includes a directional coupler comprising at least a first port, a second port, and a third port. The first port is in optical communication with the second port and with the third port such that a first optical signal received by the first port is split into a second optical signal that propagates to the second port and a third optical signal that propagates to the third port. The optical sensor further includes a Bragg fiber in optical communication with the second port and with the third port. The second optical signal and the third optical signal counterpropagate through the Bragg fiber and return to the third port and the second port, respectively.
Abstract translation: 光学传感器包括至少包括第一端口，第二端口和第三端口的定向耦合器。 第一端口与第二端口和第三端口光通信，使得由第一端口接收的第一光信号被分裂成传播到第二端口的第二光信号和传播到第三端口的第三光信号 港口。 光学传感器还包括与第二端口和第三端口光学通信的布拉格光纤。 第二光信号和第三光信号通过布拉格光纤反向传播并分别返回到第三端口和第二端口。
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50.发明授权Time domain multiplexed amplified sensor array with improved signal to noise ratios 失效具有改善的信噪比的时域多路复用放大传感器阵列
公开(公告)号：US5866898A
公开(公告)日：1999-02-02
申请号：US814548
申请日：1997-03-11
Applicant: Craig W. Hodgson , Jefferson L. Wagener , Michel J.F. Digonnet , H. John Shaw
Inventor： Craig W. Hodgson , Jefferson L. Wagener , Michel J.F. Digonnet , H. John Shaw
CPC classification number: H04B10/2939 , G01D5/35383 , G01H9/004
Abstract: The present invention significantly improves the signal to noise ratio (SNR) in a passive optical array by adding erbium-doped optical amplifiers between the sensor couplings to offset the coupler splitting losses. Optical amplifiers are inserted between the sensor couplings along the signal path, and the gain of the amplifiers is designed to offset losses due to the previous coupling. The overall SNR can be maintained without significant degradation even for large numbers of sensors. In a first aspect of the present invention, the amplifiers are located along the distribution and return buses directly after the couplers, except possibly for the last sensor. In a second aspect of the present invention, the amplifiers are located directly before the couplers. The optical amplifiers preferably are made of short lengths of erbium-doped fiber spliced into the distribution and return buses. Improvements can be made to the SNR when the distribution bus coupling ratios are set at optimal values. The value of the optimal coupling ratio depends upon the amplifier configuration, the excess loss and other configuration parameters. In alternative embodiments, sensors are grouped into parallel configurations along the distribution and return buses to increase the number of sensors without a corresponding increase in the number of amplifiers and with an improvement in system performance to a certain point.
Abstract translation: 本发明通过在传感器耦合之间添加掺铒光放大器来显着提高无源光学阵列中的信噪比（SNR），以抵消耦合器分离损耗。 光放大器被插入到沿着信号路径的传感器耦合之间，并且放大器的增益被设计成抵消由于先前的耦合引起的损耗。 即使对于大量的传感器也可以保持整体SNR而没有显着的降低。 在本发明的第一方面中，除了最后一个传感器之外，放大器沿着分配和返回总线直接位于耦合器之后。 在本发明的第二方面中，放大器直接位于耦合器之前。 光放大器优选地由拼接到分配和返回总线中的短长度的掺铒光纤制成。 当分配总线耦合比被设置为最佳值时，可以对SNR进行改进。 最佳耦合比的值取决于放大器配置，过剩损耗和其他配置参数。 在替代实施例中，传感器沿着分配和返回总线被分组成并行配置，以增加传感器的数量，而不会相应地增加放大器的数量，并且将系统性能提高到某一点。
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