公开(公告)号：US20130028557A1

公开(公告)日：2013-01-31

申请号：US13191954

申请日：2011-07-27

申请人： Ming-Chang Lee ,  Ren-Young Liu

发明人： Ming-Chang Lee ,  Ren-Young Liu

IPC分类号： G02B6/26 ,  B23P11/00

CPC分类号： G02B6/26 ,  G02B6/105 ,  G02B6/2813

摘要： This patent disclosure is based on silicon instead of LiNbO3, waveguide chip. The disclosed silicon-based multi-function integrated-optic chip comprises of unique design and fabrication features onto it. First, a unique polarization-diversity coupler is designed and fabricated to couple the external light into the silicon waveguide structure. Then TE mode is guided into a silicon slab waveguide, but TM mode is confined and diverted 90 degree in a silicon carbide structure till the chip edges for TM-mode suppression. Second, a unique two-step (vertical and lateral) taper waveguide region is designed and fabricated to bridge the polarization-diversity coupler output with the input of a multi-mode interferometer (MMI) splitter for power loss reduction. In this configuration, MMI may be a 1×2 or 2×2 structure to divide the input TE mode into a 50/50 splitting ratio output to form a Y-junction. Third, at either end of the Y-junction output, there is a phase modulator to achieve optical phase modulation through various physics mechanisms such as plasma dispersion, electro-optics, thermo-optics, or photo-elastic effect. With this newly-developed silicon-based multi-function integrated optic chip, the size and cost of fiber sensors including FOG's can be greatly reduced.

摘要翻译： 该专利公开是基于硅而不是LiNbO 3，波导芯片。 所公开的硅基多功能集成光学芯片包括独特的设计和制造特征。 首先，设计和制造了一种独特的偏振分集耦合器，将外部光耦合到硅波导结构中。 然后将TE模式引导到硅平板波导中，但TM模式在碳化硅结构中被限制并转向90度，直到芯片边缘为TM模式抑制。 第二，设计并制造了一个独特的两步（垂直和横向）锥形波导区域，以便将偏振分集耦合器输出与多模干涉仪（MMI）分离器的输入端桥接，以减少功率损耗。 在该结构中，MMI可以是1×2或2×2结构，以将输入TE模式分成50/50分频比输出以形成Y结。 第三，在Y结输出的任一端，存在通过各种物理机制（诸如等离子体分散，电光学，热光学或光弹性效应）实现光相位调制的相位调制器。 利用这种新开发的硅基多功能集成光学芯片，可大大降低包括FOG在内的光纤传感器的尺寸和成本。

公开(公告)号：US08744222B2

公开(公告)日：2014-06-03

申请号：US13191954

申请日：2011-07-27

申请人： Ming-Chang Lee ,  Ren-Young Liu

发明人： Ming-Chang Lee ,  Ren-Young Liu

IPC分类号： G02B6/27

CPC分类号： G02B6/26 ,  G02B6/105 ,  G02B6/2813

摘要： This patent disclosure is based on silicon instead of LiNbO3, waveguide chip. The disclosed silicon-based multi-function integrated-optic chip comprises of unique design and fabrication features onto it. First, a unique polarization-diversity coupler is designed and fabricated to couple the external light into the silicon waveguide structure. Then TE mode is guided into a silicon slab waveguide, but TM mode is confined and diverted 90 degree in a silicon carbide structure till the chip edges for TM-mode suppression. Second, a unique two-step (vertical and lateral) taper waveguide region is designed and fabricated to bridge the polarization-diversity coupler output with the input of a multi-mode interferometer (MMI) splitter for power loss reduction. In this configuration, MMI may be a 1×2 or 2×2 structure to divide the input TE mode into a 50/50 splitting ratio output to form a Y-junction. Third, at either end of the Y-junction output, there is a phase modulator to achieve optical phase modulation through various physics mechanisms such as plasma dispersion, electro-optics, thermo-optics, or photo-elastic effect. With this newly-developed silicon-based multi-function integrated optic chip, the size and cost of fiber sensors including FOG's can be greatly reduced.

摘要翻译： 该专利公开是基于硅而不是LiNbO 3，波导芯片。 所公开的硅基多功能集成光学芯片包括独特的设计和制造特征。 首先，设计和制造了一种独特的偏振分集耦合器，将外部光耦合到硅波导结构中。 然后将TE模式引导到硅平板波导中，但TM模式在碳化硅结构中被限制并转向90度，直到芯片边缘为TM模式抑制。 第二，设计并制造了一个独特的两步（垂直和横向）锥形波导区域，以便将偏振分集耦合器输出与多模干涉仪（MMI）分离器的输入端桥接，以减少功率损耗。 在该结构中，MMI可以是1×2或2×2结构，以将输入TE模式分成50/50分频比输出以形成Y结。 第三，在Y结输出的任一端，存在通过各种物理机制（诸如等离子体分散，电光学，热光学或光弹性效应）实现光相位调制的相位调制器。 利用这种新开发的硅基多功能集成光学芯片，可大大降低包括FOG在内的光纤传感器的尺寸和成本。

公开(公告)号：US08578739B2

公开(公告)日：2013-11-12

申请号：US12897059

申请日：2010-10-04

申请人： Tz-Shiuan Peng ,  Ren-Young Liu ,  Lon Wang

发明人： Tz-Shiuan Peng ,  Ren-Young Liu ,  Lon Wang

IPC分类号： C03B37/10 ,  C03C3/095 ,  H04B10/17

CPC分类号： H01S3/06754 ,  H01S3/067 ,  H01S3/094003 ,  H01S3/094023 ,  H01S3/1608

摘要： An optical fiber apparatus is suitable to operate under irradiation, more particularly to mitigating the damage of a rare-earth-doped optical fiber element as part of an optical fiber assembly causes by irradiation. The irradiation mitigation attributes to a photo-annealing apparatus including at least a shorter wavelength photo-annealing spectral content, which is relative to that of a pump light source, for effectively photo-annealing the rare-earth-doped fiber element. Photo-annealing by such shorter wavelength light results in a fast and nearly complete recovery of radiation induced attenuation of the rare-earth-doped optical fiber element in the wavelength range from 900 nm to 1700 nm.

公开(公告)号：US20120081781A1

公开(公告)日：2012-04-05

申请号：US12897059

申请日：2010-10-04

申请人： Tz-Shiuan Peng ,  Ren-Young Liu ,  Lon Wang

发明人： Tz-Shiuan Peng ,  Ren-Young Liu ,  Lon Wang

IPC分类号： H01S3/067

CPC分类号： H01S3/06754 ,  H01S3/067 ,  H01S3/094003 ,  H01S3/094023 ,  H01S3/1608

摘要： An optical fiber apparatus is suitable to operate under irradiation, more particularly to mitigating the damage of a rare-earth-doped optical fiber element as part of an optical fiber assembly causes by irradiation. The irradiation mitigation attributes to a photo-annealing apparatus including at least a shorter wavelength photo-annealing spectral content, which is relative to that of a pump light source, for effectively photo-annealing the rare-earth-doped fiber element. Photo-annealing by such shorter wavelength light results in a fast and nearly complete recovery of radiation induced attenuation of the rare-earth-doped optical fiber element in the wavelength range from 900 nm to 1700 nm.

摘要翻译： 光纤设备适合于在照射下进行操作，更具体地说，是减轻作为光纤组件的一部分的掺杂稀土元素光纤元件的损害。 照射减轻属性属于光退火装置，其包括相对于泵浦光源的至少较短的波长光退火光谱含量，用于有效地对稀土掺杂的光纤元件进行光退火。 通过这种较短波长的光的光退火导致在900nm至1700nm的波长范围内的稀土掺杂光纤元件的辐射诱导衰减的快速且几乎完全的恢复。

公开(公告)号：US5475772A

公开(公告)日：1995-12-12

申请号：US252704

申请日：1994-06-02

申请人： Henry H. Hung ,  Ren-Young Liu

发明人： Henry H. Hung ,  Ren-Young Liu

IPC分类号： G01C19/72 ,  G02B6/12 ,  G02B6/126 ,  G02B6/14 ,  G02B6/10

CPC分类号： G02B6/276 ,  G02B6/126 ,  G02B6/14 ,  G02B2006/12183 ,  G02B6/30

摘要： A proton exchange polarizer with a spatial filter positioned to reduce cross coupling of unguided radiation. A photoconductor substrate is fabricated from LiNbO.sub.3 or LiTaO.sub.3. The substrate has a spatial filter located at a primary reflection point on a bottom of the substrate so as to block unguided TM mode light from reaching the output of the substrate. The spatial filter is fabricated by physical or chemical methods such as saw cutting, diamond machining, etching, micro-machining, laser-machining and/or damaging the surface of the substrate. The unguided TM mode light is attenuated by blockage or interruption of the transmissive region.

摘要翻译： 具有空间滤波器的质子交换偏振器，其定位成减少非导向辐射的交叉耦合。 光电导体衬底由LiNbO 3或LiTaO 3制成。 衬底具有位于衬底底部的主要反射点处的空间滤光器，以阻止未导向的TM模式光到达衬底的输出。 空间滤波器通过诸如锯切，金刚石加工，蚀刻，微加工，激光加工和/或损坏基板的表面的物理或化学方法制造。 无导向的TM模式光被阻挡或透过区域中断而衰减。

公开(公告)号：US09448116B2

公开(公告)日：2016-09-20

申请号：US13149208

申请日：2011-05-31

申请人： Yu-Lung Lo ,  Ren-Young Liu ,  Chih-Chung Yen ,  Yi-Fan Chung

发明人： Yu-Lung Lo ,  Ren-Young Liu ,  Chih-Chung Yen ,  Yi-Fan Chung

IPC分类号： G01J4/00 ,  G01J4/04 ,  G02B6/27 ,  G01C19/72

CPC分类号： G01J4/00 ,  G01C19/72 ,  G01J4/04 ,  G02B6/2793

摘要： This invention revealed and demonstrated a method of measuring and deriving a Jones Matrix of a fiber or fiber component, and to compensate the fiber or fiber component such that the fiber or fiber component plus the compensated optical circuit act as if an Unitary Matrix free space condition. In this way, all compensated fibers or fiber components act the same no matter what their original conditions are. It greatly enhances the fiber or fiber component repeatability and stability throughout the fiber or fiber component production line. The compensated circuit for Unitary Matrix can be applied externally or internally.

摘要翻译： 本发明揭示并演示了一种测量和导出光纤或光纤部件的琼斯矩阵的方法，并且补偿光纤或光纤部件，使得光纤或光纤部件加上经补偿的光电路起到如同单一矩阵自由空间条件 。 以这种方式，所有补偿的纤维或纤维组分的作用相同，无论其原始条件如何。 它大大提高纤维或纤维组分生产线上纤维或纤维组分的重复性和稳定性。 单位矩阵的补偿电路可以在外部或内部应用。

公开(公告)号：US20120182551A1

公开(公告)日：2012-07-19

申请号：US13149208

申请日：2011-05-31

申请人： Yu-Lung Lo ,  Ren-Young Liu ,  Chih-Chung Yen ,  Yi-Fan Chung

发明人： Yu-Lung Lo ,  Ren-Young Liu ,  Chih-Chung Yen ,  Yi-Fan Chung

IPC分类号： G01J4/00 ,  G02F1/01 ,  G02B27/28

CPC分类号： G01J4/00 ,  G01C19/72 ,  G01J4/04 ,  G02B6/2793

摘要： This invention revealed and demonstrated a method of measuring and deriving a Jones Matrix of a fiber or fiber component, and to compensate the fiber or fiber component such that the fiber or fiber component plus the compensated optical circuit act as if an Unitary Matrix free space condition. In this way, all compensated fibers or fiber components act the same no matter what their original conditions are. It greatly enhances the fiber or fiber component repeatability and stability throughout the fiber or fiber component production line. The compensated circuit for Unitary Matrix can be applied externally or internally.For the external approach, for example, compensators such as variable retarder and half-wave plate may be added, or equivalently polarization controllers may be employed. For the internal approach, no component is added, and the compensation is realized through fiber bending, twisting or other means at either or both ends of a fiber or fiber component.The disclosed free space single-mode fiber invention not only greatly enhances repeatability in the fiber and fiber component production line, it also can be employed to accelerate the design simulation for optical circuit optimization of optical fiber sensors employed fiber and fiber coil such as fiber optic gyros.

摘要翻译： 本发明揭示并演示了一种测量和导出光纤或光纤部件的琼斯矩阵的方法，并且补偿光纤或光纤部件，使得光纤或光纤部件加上经补偿的光电路起到如同单一矩阵自由空间条件 。 以这种方式，所有补偿的纤维或纤维组分的作用相同，无论其原始条件如何。 它大大提高纤维或纤维组分生产线上纤维或纤维组分的重复性和稳定性。 单位矩阵的补偿电路可以在外部或内部应用。 对于外部方法，例如，可以添加诸如可变延迟器和半波片的补偿器，或者可以采用等效的偏振控制器。 对于内部方法，不添加组件，并且通过纤维或纤维组件的两端或两端的纤维弯曲，扭曲或其它方式实现补偿。 所公开的自由空间单模光纤发明不仅大大提高了光纤和光纤部件生产线的重复性，还可用于加速光纤传感器的光电路优化设计仿真，采用光纤和光纤线圈如光纤 陀螺仪。

公开(公告)号：US4542653A

公开(公告)日：1985-09-24

申请号：US554017

申请日：1983-11-21

申请人： Ren-Young Liu

发明人： Ren-Young Liu

IPC分类号： G01N29/26 ,  G10K11/34 ,  G01N29/00

CPC分类号： G10K11/346 ,  G01N29/262 ,  Y10S367/905

摘要： Electronically changing the effective element spacing of an array of acoustic transducer elements between the transmit and receive modes of operation of an ultrasound apparatus results in reducing the deleterious effects of grating lobes present in the pattern of the array because of element spacings in excess of one half of a wavelength. A linear or quadratic time delay distribution, or both simultaneously, is applied to the array for scanning and/or focusing by setting individually the time delay of the energy associated with each element of the array during one mode of operation, e.g. transmit. The array is organized into groups of elements, e.g. pairs, and the time delay distribution is applied by setting the time delay of the energy associated with each group of the array during the remaining mode of operation, e.g. receive.

摘要翻译： 在超声装置的发射和接收工作模式之间电子改变声换能器阵列阵列的有效元件间距导致由于元件间距超过一半而导致存在于阵列图案中的栅瓣的有害影响 的波长。 线性或二次时间延迟分布或两者同时被施加到阵列用于扫描和/或聚焦，通过在一个操作模式期间单独设置与阵列的每个元件相关联的能量的时间延迟。 发送。 阵列被组织成一组元素，例如 并且通过在剩余操作模式期间设置与阵列的每组相关联的能量的时间延迟来应用时间延迟分布，例如。 接收。

公开(公告)号：US06888981B2

公开(公告)日：2005-05-03

申请号：US10243113

申请日：2002-09-13

申请人： James Blake ,  Ren-Young Liu

发明人： James Blake ,  Ren-Young Liu

IPC分类号： G02B6/42 ,  G02B6/00 ,  G02B6/28 ,  G02B6/293 ,  G02B6/34 ,  G02B6/26

CPC分类号： G02B6/29332 ,  G02B6/0219 ,  G02B6/2821 ,  G02B6/29398

摘要： A method and system for adjusting power at output ports of a wavelength division multiplexing (WDM) coupler. A loss element may be placed at one or more of the output ports of the WDM coupler. The loss element may have a filter characteristic that matches the temperature sensitivity coefficient of the WDM coupler. The filter characteristic may reject power at one of the two output ports as a function of temperature. As a result, the loss element may balance the power at the output ports of the WDM coupler despite temperature variations.

摘要翻译： 一种调整波分复用（WDM）耦合器输出端口功率的方法和系统。 损耗元件可以放置在WDM耦合器的一个或多个输出端口处。 损耗元件可以具有与WDM耦合器的温度灵敏度系数匹配的滤波器特性。 滤波器特性可以在两个输出端口之一处拒绝功率作为温度的函数。 因此，尽管温度变化，损耗元件可以平衡WDM耦合器的输出端口的功率。

公开(公告)号：US06744966B2

公开(公告)日：2004-06-01

申请号：US09993995

申请日：2001-11-14

申请人： Dick Ang ,  Timothy L. Spicer ,  Ren-Young Liu

发明人： Dick Ang ,  Timothy L. Spicer ,  Ren-Young Liu

IPC分类号： G02B600

CPC分类号： G01C19/721 ,  H01S3/067

摘要： An example of a fiber optic light source has a pump laser that feeds light to a length of doped optical fiber. The optical fiber produces light that has a mean wavelength, for example in the range of 1515 nm to 1544 nm, such that the light is substantially unaffected when exposed to weapons level radiation.

摘要翻译： 光纤光源的示例具有将光馈送到一定长度的掺杂光纤的泵浦激光器。 光纤产生具有平均波长的光，例如在1515nm至1544nm的范围内，使得当暴露于武器级辐射时光基本上不受影响。