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1. 发明专利

CZ6960U1 Device for making light pattern 未知
公开(公告)号：CZ6960U1
公开(公告)日：1998-02-18
申请号：CZ740397
申请日：1996-05-28
申请人： TRAVNICEK VLADISLAV ING , MRVIK PAVEL
发明人： TRAVNICEK VLADISLAV ING , MRVIK PAVEL
IPC分类号： G02F1/335 , G02B6/28 , G09F9/305 , G02F001/335 , G02B006/26 , G02B006/28 , G09F009/38

2. 发明申请

US20020054725A1 Acousto-optical switch for fiber optic lines 失效
标题翻译：光纤线路的声光开关
公开(公告)号：US20020054725A1
公开(公告)日：2002-05-09
申请号：US09790924
申请日：2001-02-22
发明人： Gennadii Ivtsenkov , Valeri Narver , Leonid Magdich , Nikolay Solodovnikov
IPC分类号： G02F001/335 , G02B006/35
CPC分类号： H04Q11/0005 , G02F1/33 , G02F2001/311 , H04Q11/0003 , H04Q2011/0035
摘要： An optical switch for coupling a trunk optic fiber to a selected branch optic fiber is disclosed. The switch includes one or two optically active elements which are capable of being configured to have a different diffraction angle. The elements are configured so that an optical signal emitted from the trunk fiber is directed into the selected branch fiber. The switch may also operate in reverse to couple a signal from the branch fiber into the trunk fiber.
摘要翻译：公开了一种用于将中继光纤耦合到所选分支光纤的光开关。开关包括一个或两个能够被配置为具有不同衍射角的光学活性元件。元件被配置为使得从主干光纤发射的光信号被引导到所选择的分支光纤中。开关也可以相反地操作以将来自分支光纤的信号耦合到干线光纤中。

3. 发明申请

US20020003915A1 Acousto-optic variable attenuator with active cancellation of back reflections 失效
标题翻译：具有反射反射主动消除的声光可变衰减器
公开(公告)号：US20020003915A1
公开(公告)日：2002-01-10
申请号：US09729661
申请日：2000-12-04
发明人： Wayne V. Sorin , Pavel Polynkin , Steven L. Shepherd
IPC分类号： G02F001/335 , G02B006/26
CPC分类号： H04J14/0221 , G02B6/02071 , G02B6/14 , G02B6/2552 , G02B6/266 , G02F1/125 , G02F2201/02 , H04J14/0212
摘要： An acousto-optic filter includes an optical fiber with a first region and a second region. A first acoustic wave generator is coupled to optical fiber. The first acoustic wave generator produces a first acoustic wave that travels in a first direction in the first region. A backward-propagating wave is generated in response to propagation of the first acoustic wave along the optical fiber. The backward-propagating wave travels in an opposite direction relative to the first acoustic wave. A first acoustic wave propagation member is coupled to the optical fiber. A second acoustic wave generator is coupled to the optical fiber at the second region. The second acoustic wave generator produces a second acoustic wave that combines with the backward propagating acoustic wave.
摘要翻译：声光滤波器包括具有第一区域和第二区域的光纤。第一声波发生器耦合到光纤。第一声波发生器产生在第一区域中沿第一方向传播的第一声波。响应于沿着光纤的第一声波的传播而产生反向传播波。反向传播波相对于第一声波在相反方向上行进。第一声波传播构件耦合到光纤。第二声波发生器在第二区域耦合到光纤。第二声波发生器产生与反向传播声波组合的第二声波。

4. 发明申请

US20010055435A1 Opto-acoustic generator of ultrasound waves from laser energy supplied via optical fiber 有权
标题翻译：来自通过光纤提供的激光能量的超声波的光声发生器
公开(公告)号：US20010055435A1
公开(公告)日：2001-12-27
申请号：US09920123
申请日：2001-08-01
发明人： Elena Biagi , Fabrizio Margheri , Leonardo Masotti , David Menichelli
IPC分类号： G02F001/335
CPC分类号： G10K15/046
摘要： The opto-acoustic generator of ultrasound waves comprises an optical fiber associated to a laser-energy source, and an opto-acoustic transducer which is applied to said fiber and is designed to be impinged upon by the laser beam and to absorb partially the energy, converting it into thermal energy, thus bringing about the formation of ultrasound waves by the thermo-acoustic effect. Said opto-acoustic transducer consists of a layer or film containing prevalently graphite, which is applied on a surface of said optical fiber.
摘要翻译：超声波的光声发生器包括与激光能源相关联的光纤，以及光声换能器，其被施加到所述光纤并被设计成被激光束照射并部分地吸收能量，将其转化为热能，从而通过热声效应引起超声波的形成。所述光声换能器由施加在所述光纤表面上的含有普遍石墨的层或膜组成。

5. 发明申请

US20040247224A1 Acousto-optical device based on phonon-induced polaritonic band gaps 失效
标题翻译：基于声子诱导极化带隙的声光装置
公开(公告)号：US20040247224A1
公开(公告)日：2004-12-09
申请号：US10488440
申请日：2004-05-10
发明人： Peter Brent Littlewood , Alexei Ivanov
IPC分类号： G02F001/335
CPC分类号： B82Y20/00 , G02F1/01708 , G02F1/125 , G02F2001/0113
摘要： The device comprises an optical waveguide and an acoustic wave generating device. The waveguide has an optical band gap and a sharp electronic transition (e.g. an excitonic transition) in the band gap, and the acoustic wave generating device generates acoustic waves within the waveguide. Light passing through the waveguide is of a frequency within the band gap of the waveguide and is nearly resonant with the sharp electronic transition. The wave generating device is arranged to generate acoustic waves so as to induce optical band gas in the polariton spectrum, thereby affecting the transmission of the light passing through the waveguide, the transmission of which is thereby affected.
摘要翻译：该装置包括光波导和声波产生装置。波导在带隙中具有光学带隙和尖锐的电子跃迁（例如，激子跃迁），并且声波产生装置在波导内产生声波。穿过波导的光在波导的带隙内具有频率，并且与尖锐的电子跃迁几乎共振。波发生装置被布置成产生声波，以便在极化子谱中诱导光带气体，从而影响穿过波导的光的透射，从而影响透射。

6. 发明申请

US20040151422A1 FIBER-OPTIC MATRIX SWITCH USING PHASED ARRAY ACOUSTO-OPTIC DEVICE 失效
标题翻译：使用相位阵列光纤设备的光纤矩阵开关
公开(公告)号：US20040151422A1
公开(公告)日：2004-08-05
申请号：US10248659
申请日：2003-02-05
发明人： Manhar L. Shah
IPC分类号： G02B006/26 , G02F001/335
CPC分类号： G02F1/332 , G02B6/32 , G02B6/351 , G02B6/3526 , G02B6/3546 , G02B6/3578
摘要： A high-speed high-isolation fiber-optic matrix switch using only one acousto-optic device with phased array transducers is disclosed. Previously disclosed fiber-optic switches either required spatially separated more than one acousto-optic devices making them complex, hard to align and expensive or could not achieve high-isolation and low-insertion loss performance. A simple structure of 2null2 fiber-optic matrix switch with one phased array transducer as disclosed here is expected to make acousto-optic based fiber-optic switches more attractive than similar MEMs based switches. Use of shared lens instead of individual lenses at the input and output fiber array is expected to further reduce complexity and cost of the acousto-optic based fiber-optic switches.
摘要翻译：公开了仅使用一个具有相控阵转换器的声光器件的高速高隔离光纤矩阵开关。以前公开的光纤开关需要在空间上分离多个声光器件，使得它们变得复杂，难于对准和昂贵，或者不能实现高隔离和低插入损耗性能。预期这样公开的具有一个相控阵转换器的2x2光纤矩阵开关的简单结构使基于声光的光纤开关比类似的基于MEM的开关更有吸引力。预计在输入和输出光纤阵列处使用共享镜头而不是单个镜头可进一步降低基于光纤的光纤交换机的复杂性和成本。

7. 发明申请

US20020191879A1 Switchable wavelength filter 审中-公开
标题翻译：可切换波长滤波器
公开(公告)号：US20020191879A1
公开(公告)日：2002-12-19
申请号：US10127417
申请日：2002-04-23
发明人： Wen-fung Liu , Chih-Chung Yang , Ding-Wei Huang
IPC分类号： G02F001/335 , G02B006/34
CPC分类号： G02F1/125 , G02B6/02085 , G02B6/022 , G02F1/0115 , G02F2201/305 , G02F2201/307
摘要： A fiber-optic switchable wavelength filter comprises a fiber grating positioned in the thin section of the fiber, a horn with the tip attached to the side of the fiber, and a piezoelectric transducer fixed to the bottom of the horn. Upon receiving a voltage signal, the piezoelectric transducer can create acoustic wave in the horn, wherein the amplitude of the acoustic vibration in the horn is controlled by the magnitude of the voltage signal. The vibration energy is transferred and focused from the horn to the fiber, such that the operation wavelength is switched by changing the reflectivity of the optical signal at the Bragg wavelength and the reflectivity of the optical signal at the cladding-mode coupling wavelength.
摘要翻译：光纤可切换波长滤波器包括定位在纤维薄部分中的光纤光栅，尖端附着在光纤侧面的喇叭和固定在喇叭底部的压电换能器。在接收到电压信号时，压电换能器可以在喇叭中产生声波，其中喇叭中的声振动的振幅由电压信号的大小控制。振动能量从喇叭转移到光纤，从而通过改变布拉格波长处的光信号的反射率和包层模耦合波长处的光信号的反射率来切换工作波长。

8. 发明申请

US20020031291A1 Stepped acoustic impedance-matching transformer for very narrow channel acoustic traveling wave lens waveguide 有权
公开(公告)号：US20020031291A1
公开(公告)日：2002-03-14
申请号：US09896167
申请日：2001-06-29
申请人： Harris Corporation
发明人： Robert M. Montgomery , Reeder N. Ward , Mark T. Montgomery , Pat O. Bentley
IPC分类号： G02F001/335 , H03H007/38
CPC分类号： G02F1/33 , G02F1/11 , G10K11/02
摘要： An acoustic impedance-matching transformer includes a tapered acoustic energy transmission (metal) block, having an acoustic impedance less than that of a piezo-electric transducer in a metric direction toward that of the acoustic propagation medium of the waveguide, and by an amount that allows tailoring of the relative spatial dimensions of mating surfaces of the transducer and the block, so as to provide efficient broadband coupling of acoustic energy. The surface area of the end face of the block engaging the transducer is a corresponding fraction of the area of the transducer. The tapered block focuses acoustic energy toward the input aperture of the waveguide channel. The taper is determined in accordance with difference between the acoustic impedance of the aluminum block and that of a second acoustic wave propagation element, such as a quarter-wave section of plexiglass, interposed between the waveguide channel and the tapered block.

9. 发明申请

US20040067000A1 Systems and methods for minimally-invasive optical-acoustic imaging 有权
标题翻译：用于微创光声成像的系统和方法
公开(公告)号：US20040067000A1
公开(公告)日：2004-04-08
申请号：US10266082
申请日：2002-10-07
发明人： Kenneth N. Bates , Gil M. Vardi
IPC分类号： G02F001/335 , G02B006/34
CPC分类号： A61B5/0095 , A61B1/00117 , A61B1/00165 , A61B5/0097 , A61B5/02007 , A61B5/6851 , A61B5/6876 , A61B5/742 , A61B8/0833 , A61B8/12 , G01H9/004 , G01N29/24 , G02B6/10
摘要： This document discusses, among other things, an imaging guidewire that includes one or more optical fibers communicating light along the guidewire. At or near its distal end, one or more blazed or other fiber Bragg gratings (FBGs) directs light to a photoacoustic transducer material that provides ultrasonic imaging energy. Returned ultrasound is sensed by an FBG sensor. A responsive signal is optically communicated to the proximal end of the guidewire, and processed to develop a 2D or 3D image. In one example, the guidewire outer diameter is small enough such that an intravascular catheter can be passed over the guidewire. Techniques for improving ultrasound reception include using a high compliance material, resonating the ultrasound sensing transducer, using an attenuation-reducing coating and/or thickness, and/or using optical wavelength discrimination. Techniques for improving the ultrasound generating transducer include using a blazed FBG, designing the photoacoustic material thickness to enhance optical absorption. Techniques for distinguishing plaque or vulnerable plaque may be used to enhance the displayed image.
摘要翻译：本文件尤其涉及一种成像导丝，其包括沿导丝传送光的一个或多个光纤。在其远端处或附近，一个或多个闪耀或其它光纤布拉格光栅（FBG）将光引导到提供超声成像能量的光声换能器材料。返回的超声波由FBG传感器感测。响应信号被光学地传递到导丝的近端，并被处理以形成2D或3D图像。在一个示例中，导丝外径足够小，使得血管内导管可以穿过导丝。用于改善超声波接收的技术包括使用高柔顺性材料，使用衰减减小涂层和/或厚度谐振超声波感测传感器和/或使用光波长鉴别。用于改进超声波产生换能器的技术包括使用闪耀的FBG，设计光声材料厚度以增强光学吸收。用于区分斑块或易损斑块的技术可用于增强显示图像。

10. 发明申请

US20030123774A1 Optical wavelength filter 有权
标题翻译：光波长滤波器
公开(公告)号：US20030123774A1
公开(公告)日：2003-07-03
申请号：US10106359
申请日：2002-03-27
申请人： Fujitsu Limited
发明人： Tadao Nakazawa , Hideyuki Miyata , Masaharu Doi
IPC分类号： G02F001/335 , G02B005/20
CPC分类号： G02F1/125 , G02F1/116 , G02F2201/16 , G02F2203/055 , G02F2203/06
摘要： The present invention aims at providing an optical wavelength filter of band rejection type capable of reliably and stably blocking a light of a desired wavelength from passing through. To this end, the optical wavelength filter of the present invention comprises a plurality of optical filter sections each blocking the light corresponding to the selected wavelength from passing through, the respective optical filter sections being cascade connected to be in a multi-staged structure, wherein the selected wavelengths in the optical filter sections are deviated from one another, to form a blocking band having a wavelength band corresponding to a deviation amount.
摘要翻译：本发明旨在提供一种能够可靠且稳定地阻挡所需波长的光通过的带阻型光波长滤波器。为此，本发明的光波长滤波器包括多个光滤波器部分，每个光滤波器部分阻挡对应于所选波长的光通过，各滤光器部分级联连接成多级结构，其中光滤波器部分中所选择的波长彼此偏离，以形成具有对应于偏差量的波长带的阻挡带。

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