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公开(公告)号：US20110134432A1
公开(公告)日：2011-06-09
申请号：US13026049
申请日：2011-02-11
CPC分类号： G01D5/35303 , G01C19/721 , Y10T29/49826
摘要： An optical sensor includes at least one optical coupler and an optical waveguide in optical communication with the at least one optical coupler. The optical waveguide is configured to receive a first optical signal from the at least one optical coupler. The first optical signal has a group velocity and a phase velocity while propagating through at least a portion of the optical waveguide, the group velocity less than the phase velocity. An interference between the first optical signal and a second optical signal is affected by relative movement between the optical waveguide and the at least one optical coupler.
摘要翻译： 光学传感器包括至少一个光耦合器和与所述至少一个光耦合器光学通信的光波导。 光波导被配置为从至少一个光耦合器接收第一光信号。 第一光信号在传播通过光波导的至少一部分时具有组速度和相速度，组速度小于相速度。 第一光信号和第二光信号之间的干涉受到光波导与至少一个光耦合器之间的相对移动的影响。
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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
申请人： Michel J.F. Digonnet , Shanhui Fan , He Wen , Matthew A. Terrel
发明人： Michel J.F. Digonnet , Shanhui Fan , He Wen , Matthew A. Terrel
CPC分类号： G01J9/0246 , G01D5/35316 , G01K11/3206 , G01L1/246 , G02B6/02076 , G02B6/0208
摘要： 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.
摘要翻译： 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：US20090059238A1
公开(公告)日：2009-03-05
申请号：US12139169
申请日：2008-06-13
CPC分类号： G01D5/35303 , G01C19/721 , Y10T29/49826
摘要： An optical sensor includes at least one optical coupler and an optical waveguide in optical communication with the at least one optical coupler. The optical waveguide is configured to receive a first optical signal from the at least one optical coupler. The first optical signal has a group velocity and a phase velocity while propagating through at least a portion of the optical waveguide, the group velocity less than the phase velocity. An interference between the first optical signal and a second optical signal is affected by perturbations to at least a portion of the optical sensor.
摘要翻译： 光学传感器包括至少一个光耦合器和与所述至少一个光耦合器光学通信的光波导。 光波导被配置为从至少一个光耦合器接收第一光信号。 第一光信号在传播通过光波导的至少一部分时具有组速度和相速度，组速度小于相速度。 第一光信号和第二光信号之间的干扰受到对光传感器的至少一部分的扰动的影响。
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公开(公告)号：US20120069346A1
公开(公告)日：2012-03-22
申请号：US13237591
申请日：2011-09-20
IPC分类号： G01C19/66
CPC分类号： G01C19/727 , G01C19/721
摘要： A method for detecting rotation includes providing a plurality of resonant waveguides generally adjacent to one another and optically coupled to one another. Each resonant waveguide of the plurality of resonant waveguides is configured to allow light to propagate along the resonant waveguide in a planar path. The method further includes propagating light along each path in a clockwise direction or along each path in a counterclockwise direction.
摘要翻译： 一种用于检测旋转的方法包括提供大体上彼此相邻并且彼此光学耦合的多个谐振波导。 多个谐振波导的每个谐振波导被配置为允许光在平面路径中沿着谐振波导传播。 该方法还包括沿着每个路径沿顺时针方向沿着逆时针方向沿着每个路径传播光。
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公开(公告)号：US20100021115A1
公开(公告)日：2010-01-28
申请号：US12575330
申请日：2009-10-07
CPC分类号： G02F1/0136 , G02B6/02304 , G02B6/02328 , G02F1/0134 , G02F2202/32
摘要： An optical device includes a hollow-core photonic-bandgap fiber, wherein at least a portion of the hollow-core photonic-bandgap fiber is adjustably axially twisted.
摘要翻译： 光学器件包括中空光子带隙光纤，其中至少一部分中空光子带隙光纤可调节地轴向扭曲。
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公开(公告)号：US20090244544A1
公开(公告)日：2009-10-01
申请号：US12416767
申请日：2009-04-01
IPC分类号： G01C19/72
CPC分类号： G01C19/727 , G01C19/721
摘要： An optical waveguide gyroscope includes at least one optical coupler configured to receive a first optical signal at a first port, to transmit a second optical signal to a second port, and to transmit a third optical signal to a third port. The optical waveguide gyroscope further includes a plurality of resonant waveguides optically coupled to the second port and the third port. The resonant waveguides are generally adjacent to one another and optically coupled to one another. At least a portion of the second optical signal propagates from the second port to the third port by propagating through the plurality of resonant waveguides, and at least a portion of the third optical signal propagates from the third port to the second port by propagating through the plurality of resonant waveguides. The at least a portion of the second optical signal propagates through each resonant waveguide of the plurality of resonant waveguides in a clockwise direction and the at least a portion of the third optical signal propagates through each resonant waveguide of the plurality of resonant waveguides in a counterclockwise direction.
摘要翻译： 光波导陀螺仪包括至少一个光耦合器，被配置为在第一端口处接收第一光信号，以将第二光信号传输到第二端口，并将第三光信号传输到第三端口。 光波导陀螺仪还包括光耦合到第二端口和第三端口的多个谐振波导。 谐振波导通常彼此相邻并且彼此光学耦合。 通过传播多个谐振波导，第二光信号的至少一部分从第二端口传播到第三端口，并且第三光信号的至少一部分从第三端口传播到第二端口，传播通过 多个谐振波导。 第二光信号的至少一部分沿顺时针方向传播通过多个谐振波导的每个谐振波导，并且第三光信号的至少一部分沿逆时针方向传播通过多个谐振波导的每个谐振波导 方向。
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公开(公告)号：US20090052829A1
公开(公告)日：2009-02-26
申请号：US12194490
申请日：2008-08-19
IPC分类号： G02B6/032
CPC分类号： G02F1/0136 , G02B6/02304 , G02B6/02328 , G02F1/0134 , G02F2202/32
摘要： An optical device includes a hollow-core photonic-bandgap fiber, wherein at least a portion of the hollow-core photonic-bandgap fiber has a longitudinal axis and is twisted about the longitudinal axis.
摘要翻译： 光学器件包括中空光子带隙光纤，其中至少一部分中空光子带隙光纤具有纵向轴线并围绕纵向轴线扭曲。
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公开(公告)号：US08437005B2
公开(公告)日：2013-05-07
申请号：US13493844
申请日：2012-06-11
申请人： Michel J.F. Digonnet , Shanhui Fan , Seth Lloyd
发明人： Michel J.F. Digonnet , Shanhui Fan , Seth Lloyd
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： An optical sensor, a method of configuring an optical sensor, and a method of using an optical sensor are provided. The optical sensor includes an optical waveguide having a length and a laser source optically coupled to the waveguide. The laser source has a coherence length. Light from the source is transmitted to the waveguide as a first signal propagating along the waveguide in a first direction and a second signal propagating along the waveguide in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the waveguide to generate a third signal. The coherence length is greater than 1 meter or is in a range between 200 microns and 10 centimeters.
摘要翻译： 提供光学传感器，配置光学传感器的方法以及使用光学传感器的方法。 光学传感器包括具有光学耦合到波导的长度的光波导和激光源。 激光源具有相干长度。 源自光源的光作为沿着波导沿第一方向传播的第一信号被传输到波导，第二信号沿着与第一方向相反的第二方向沿着波导传播。 第一信号和第二信号的光路基本上彼此相互倒数，并且在通过波导传播之后将第一信号和第二信号组合在一起以产生第三信号。 相干长度大于1米或处于200微米至10厘米之间的范围内。
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公开(公告)号：US20090175584A1
公开(公告)日：2009-07-09
申请号：US12356510
申请日：2009-01-20
申请人： Hyang Kyun Kim , Shanhui Fan , Gordon S. Kino , Jonghwa Shin , Michel J.F. Digonnet , Vinayak Dangui
发明人： Hyang Kyun Kim , Shanhui Fan , Gordon S. Kino , Jonghwa Shin , Michel J.F. Digonnet , Vinayak Dangui
IPC分类号： G02B6/032
CPC分类号： G02B6/02328 , G02B6/02338 , G02B6/02347
摘要： An optical fiber includes a cladding with a material having a first refractive index and a pattern of regions formed therein. Each of the regions has a second refractive index lower than the first refractive index. The optical fiber further includes a core region and a core ring having an inner perimeter, an outer perimeter, and a thickness between the inner perimeter and the outer perimeter. The thickness is sized to reduce the number of ring surface modes supported by the core ring.
摘要翻译： 光纤包括具有第一折射率的材料和其中形成的区域的图案的包层。 每个区域具有低于第一折射率的第二折射率。 光纤还包括芯区域和芯环，其具有内周边，外周边和内周边与外周边之间的厚度。 厚度的大小可以减小由芯环支撑的环表面模式的数量。
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公开(公告)号：US20120281225A1
公开(公告)日：2012-11-08
申请号：US13493844
申请日：2012-06-11
申请人： Michel J.F. Digonnet , Shanhui Fan , Seth Lloyd
发明人： Michel J.F. Digonnet , Shanhui Fan , Seth Lloyd
CPC分类号： G01C19/721
摘要： An optical sensor, a method of configuring an optical sensor, and a method of using an optical sensor are provided. The optical sensor includes an optical waveguide having a length and a laser source optically coupled to the waveguide. The laser source has a coherence length. Light from the source is transmitted to the waveguide as a first signal propagating along the waveguide in a first direction and a second signal propagating along the waveguide in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the waveguide to generate a third signal. The coherence length is greater than 1 meter or is in a range between 200 microns and 10 centimeters.
摘要翻译： 提供光学传感器，配置光学传感器的方法以及使用光学传感器的方法。 光学传感器包括具有光学耦合到波导的长度的光波导和激光源。 激光源具有相干长度。 源自光源的光作为沿着波导沿第一方向传播的第一信号被传输到波导，第二信号沿着与第一方向相反的第二方向沿着波导传播。 第一信号和第二信号的光路基本上彼此相互倒数，并且在通过波导传播之后将第一信号和第二信号组合在一起以产生第三信号。 相干长度大于1米或处于200微米至10厘米之间的范围内。
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