公开(公告)号：EP1186936A4

公开(公告)日：2003-10-29

申请号：EP01912411

申请日：2001-03-15

申请人： SUMITOMO OSAKA CEMENT CO LTD

发明人： YAMADA MANABU ,  MIYAZAKI TOKUICHI ,  HARA TOKUTAKA

IPC分类号： G02B6/30 ,  G02B6/42 ,  G02F1/01 ,  G02F1/21 ,  G02F1/225 ,  G02F1/035

CPC分类号： G02F1/0123 ,  G02B6/30 ,  G02B6/4214 ,  G02B6/423 ,  G02B6/4246 ,  G02F1/035 ,  G02F1/225 ,  G02F1/2255 ,  G02F1/295 ,  G02F2001/212 ,  G02F2201/58 ,  G02F2203/21

摘要： An optical waveguide modulator with an output light monitor hardly restricted in dimension, having a high reliability, produced at low production cost, and comprising an optical waveguide element (including surface waveguide parts formed on a dielectric substrate, a coupling part for convergently coupling them, and an output light output waveguide part continuous with the coupling part), an output light optical fiber connected to the output end of the output light output waveguide part of the optical waveguide element, a reinforcing capillary for reinforcing the connection part between the optical waveguide element and the output light optical fiber, and monitor light light-receiving means, wherein the reinforcing capillary has a through hole or groove accommodating and holding the output light optical fiber, a joined surface joined to the end face on the output side of the substrate of the optical waveguide element, and a fore end face opposite to the joined surface, the reinforcing capillary receives the monitor light outputted from the optical waveguide element by means of at least one of the reinforcing capillary itself and the monitor light optical fiber disposed therein, propagates the monitor light, and outputs it outside the reinforcing capillary, and the monitor light light-receiving means is disposed in a position where it receives the monitor light outputted from the reinforcing capillary and has a photo-electric transducing element.

公开(公告)号：EP1354382A2

公开(公告)日：2003-10-22

申请号：EP01981415.1

申请日：2001-10-09

申请人： SpectraSensors, Inc.

发明人： MAY, Randy, Dean

IPC分类号： H01S5/0687 ,  H01S5/40 ,  H04B10/18 ,  H04J14/02 ,  G02B26/00 ,  G02F1/21

CPC分类号： H01S5/0687 ,  H01S3/1303 ,  H01S5/0617 ,  H01S5/4087

摘要： The method and system operate to calibrate a transmission laser of the dense wavelength division multiplexer (DWDM) and to lock the laser to a selected transmission wavelength. In one example, the transmission laser is a widely tunable laser (WTL) to be tuned to one of a set of International Telecommunications Union (ITU) transmission grid lines for transmission through an optic fiber. To lock the WTL to an ITU grid line, a portion of the output beam from the WTL is routed through the etalon to split the beam into a set of transmission lines for detection by an etalon fringe detector. Another portion of the beam is routed directly to a laser wavelength detector. A wavelength-locking controller compares signals from the two detectors and adjusts the temperature of the etalon to align the wavelength of one of the transmission lines of the etalon with the wavelength of the output beam, then controls the WTL in a feedback loop to lock the laser to the etalon line. The wavelength-locking controller thereafter monitors the temperature of the etalon and keeps the temperature constant to prevent any wavelength drift in the etalon. In one example, the optical components are aligned so that laser wavelength detector receives a portion of the laser beam directly from the laser so that phase characteristics of the laser beam are not affected by an intervening beamsplitter thereby permitting improved wavelength locking. In another embodiment, an etalon chirp filter is provided for reducing or eliminating optical frequency chirp, regardless of the particular ITU channel being used for transmission.

公开(公告)号：EP1336892A1

公开(公告)日：2003-08-20

申请号：EP02003599.4

申请日：2002-02-15

申请人： Paul Drude-Institut für Festkörperelektronik im Forschungsverbund Berlin e.V.

发明人： Santos, Paulo, V., Dr. ,  Krishnamurthy, Srini, Dr.

IPC分类号： G02F1/125 ,  G02F1/11 ,  G02F1/21

CPC分类号： G02F1/125 ,  G02F1/11 ,  G02F2001/212 ,  G02F2201/307 ,  G02F2201/346 ,  G02F2202/32

摘要： An controllable optical device for integrated optics applications comprises a material structure, at least one optical cavity defined in said material structure and having a refractive index, a dimension, and first and second sides, said material structure including a plurality of alternating transparent layer regions of alternating refractive indices forming first and second Bragg mirrors disposed one at each of said first and second sides of said optical cavity, and at least one transducer provided on said material structure for the generation of acoustic waves adapted to modulate said refractive index and said dimension of said optical cavity whereby to influence a light beam incident on said Bragg mirrors and said optical cavity. The device can be designed to have acoustic and optic waves propagating in arbitrary directions.

摘要翻译： 用于集成光学应用的可控光学装置包括材料结构，在所述材料结构中限定的具有折射率，尺寸以及第一和第二侧面的至少一个光学腔，所述材料结构包括多个交替透明层区域 形成第一和第二布拉格反射镜的交替折射率，所述第一和第二布拉格反射镜在所述光学腔的所述第一和第二侧中的每一个处设置一个，以及设置在所述材料结构上的至少一个换能器，用于产生适于调节所述折射率和所述尺寸的 所述光腔由此影响入射在所述布拉格反射镜和所述光腔上的光束。 该设备可以被设计成具有在任意方向上传播的声波和光波。

公开(公告)号：EP1081538A3

公开(公告)日：2003-08-13

申请号：EP00114523.4

申请日：2000-07-06

申请人： Agilent Technologies, Inc. (a Delaware corporation)

发明人： Chen, Yong ,  Corzine, Scott W. ,  Wang, Shih-Yuan

IPC分类号： G02F1/19 ,  G02F1/315 ,  G02F1/21 ,  G11C13/04

CPC分类号： G11C13/041 ,  G02F1/19 ,  G02F1/21 ,  G02F1/315 ,  G02F2203/02 ,  G02F2203/023

摘要： An optical element having a variable index of refraction. The optical element utilizes a layer of a transparent dielectric material having an index of refraction determined by the concentration of hydrogen in the dielectric material. A layer of a hydrogen reservoir medium that includes a material that acts as a source or a sink for hydrogen is placed adjacent to the transparent dielectric layer. The reservoir medium accepts hydrogen from the transparent layer in response to a first electric field being applied across the transparent layer and reservoir layer and donates hydrogen to the transparent layer in response to a second electric field being applied across the transparent layer and the reservoir layer. The electric fields are generated by applying appropriate potentials across first and second electrodes that sandwich the dielectric and reservoir layers. The preferred reservoir material is KOH. The transparent dielectric material preferably includes a material chosen from the group consisting of hydrides of an alkali, alkaline-earth, rare-earth metals, and alloys thereof.

公开(公告)号：EP0801766A4

公开(公告)日：2002-11-06

申请号：EP95918880

申请日：1995-05-01

申请人： ETALON INC

发明人： MILES MARK W

IPC分类号： G02F1/01 ,  G01J3/26 ,  G02B26/00 ,  G02B26/02 ,  G02B26/08 ,  G02F1/21 ,  G09G3/20 ,  G09G3/22 ,  G09G3/34 ,  G02F1/31

CPC分类号： G09G3/3466 ,  B82Y20/00 ,  G01J3/26 ,  G02B26/001 ,  G02B26/02 ,  G02B26/08 ,  G02B26/0833 ,  G09G3/2014 ,  G09G3/2022 ,  G09G3/22 ,  G09G3/34 ,  G09G2300/023 ,  G09G2300/06 ,  G09G2300/0842

摘要： Light in the visible spectrum is modulated using an array of modulation elements (501), and control circuitry connected to the array for controlling each of the elements having a surface (506) which is caused to exhibit a predetermined impedance characteristic to particular frequencies of light. The amplitude of light delivered by each of the modulation elements is controlled independently by pulse code modulation. Each modulation element has a deformable portion (508) held under tensile stress, and the control circuitry controls the deformation of the deformable portion. Each deformable element has a deformation mechanism and an optical portion independently imparting to the element respectively a controlled deformation characteristic and a controlled modulation characteristic. The deformable modulation element may be a non-metal. The elements are made by forming a sandwich of two layers and a sacrificial layer between them, the sacrificial layer having a thickness related to the final cavity dimension, and using chemical (e.g., water) or a plasma based etch process to remove the sacrificial layer.

公开(公告)号：EP1072936A3

公开(公告)日：2002-10-23

申请号：EP00306043.1

申请日：2000-07-17

申请人： Agere Systems Optoelectronics Guardian Corporation

发明人： Ackerman, David Alan ,  Koch, Thomas Lawson

IPC分类号： G02F1/21 ,  G02F3/02 ,  H01S3/13

CPC分类号： G02B5/284

摘要： A method and device for obtaining a desired phase of optical characteristic of a Fabry-Perot (FP) etalon using multiple optical detectors which, while passively aligned at various positions relative to an incident light beam, detect different phases of light signal emerging from the FP etalon. An FP etalon and optical detector array constructed in accordance with the present invention may be used as a frequency discriminator in an optical system where the FP etalon optical characteristic is required to have a particular phase.

公开(公告)号：EP1205782A3

公开(公告)日：2002-05-29

申请号：EP01114653.7

申请日：2001-06-19

申请人： Agilent Technologies, Inc. (a Delaware corporation)

发明人： Tucker, Rodney S. ,  Sorin, Wayne V.

IPC分类号： G02B26/02 ,  G02B5/28 ,  G01J3/26 ,  G02F1/21 ,  H01S3/00

CPC分类号： G02B6/29358 ,  G01J3/26 ,  G02B6/29395 ,  G02B26/001 ,  G02B26/02

摘要： A tunable optical resonator whose resonance frequency is determined by a light signal introduced into the resonator. The resonator includes an optical cavity[10, 306] having a first mirror[13] and a second mirror[14]. The first mirror[13] and second mirror[14] are supported relative to one another such that the distance between the first and second mirrors may be altered by applying a force to said second mirror[14] thereby altering the resonance frequency of said cavity. The resonator includes a light input port[13] for receiving a tuning light signal, and a light signal generator for generating the tuning light source[302]. The tuning light signal is introduced into the optical cavity[10,306] such that the tuning light signal is reflected between the first and second mirrors. In the absence of the tuning light signal, the resonator has a resonance characterized by a resonance response curve centered at λ 0 . The tuning light signal has a wavelength λ 1 within said resonance response curve and sufficient power to cause said resonance response curve to shift such that the resonance response curve is now centered at λ 2 , where λ 2 >λ 1 . In one embodiment of the invention, a circuit[403] for monitoring the light leaving the resonator is utilized to control the wavelength and/or amplitude of the tuning light signal such that the light leaving the resonator has a predetermined wavelength.

公开(公告)号：EP1205782A2

公开(公告)日：2002-05-15

申请号：EP01114653.7

申请日：2001-06-19

申请人： Agilent Technologies, Inc. (a Delaware corporation)

发明人： Tucker, Rodney S. ,  Sorin, Wayne V.

IPC分类号： G02B26/02 ,  G02B5/28 ,  G01J3/26 ,  G02F1/21

CPC分类号： G02B6/29358 ,  G01J3/26 ,  G02B6/29395 ,  G02B26/001 ,  G02B26/02

摘要： A tunable optical resonator whose resonance frequency is determined by a light signal introduced into the resonator. The resonator includes an optical cavity[10, 306] having a first mirror[13] and a second mirror[14]. The first mirror[13] and second mirror[14] are supported relative to one another such that the distance between the first and second mirrors may be altered by applying a force to said second mirror[14] thereby altering the resonance frequency of said cavity. The resonator includes a light input port[13] for receiving a tuning light signal, and a light signal generator for generating the tuning light source[302]. The tuning light signal is introduced into the optical cavity[10,306] such that the tuning light signal is reflected between the first and second mirrors. In the absence of the tuning light signal, the resonator has a resonance characterized by a resonance response curve centered at λ 0 . The tuning light signal has a wavelength λ 1 within said resonance response curve and sufficient power to cause said resonance response curve to shift such that the resonance response curve is now centered at λ 2 , where λ 2 >λ 1 . In one embodiment of the invention, a circuit[403] for monitoring the light leaving the resonator is utilized to control the wavelength and/or amplitude of the tuning light signal such that the light leaving the resonator has a predetermined wavelength.

摘要翻译： 谐振频率由引入谐振器的光信号决定的可调谐光学谐振器。 谐振器包括具有第一反射镜[13]和第二反射镜[14]的光腔[10,306]。 第一反射镜[13]和第二反射镜[14]相对于彼此被支撑，使得第一反射镜和第二反射镜之间的距离可以通过向所述第二反射镜[14]施加力来改变，从而改变所述腔的谐振频率 。 谐振器包括用于接收调谐光信号的光输入端口[13]和用于产生调谐光源[302]的光信号发生器。 调谐光信号被引入到光学腔[10,306]中，使得调谐光信号在第一和第二反射镜之间反射。 在没有调谐光信号的情况下，谐振器具有由以λ0为中心的谐振响应曲线表征的谐振。 调谐光信号在所述谐振响应曲线内具有波长λ1并且具有足够的功率以使所述谐振响应曲线移位，使得谐振响应曲线现在集中在λ2处，其中λ2>λ1。 在本发明的一个实施例中，用于监测离开谐振器的光的电路[403]被用来控制调谐光信号的波长和/或振幅，使得离开谐振器的光具有预定波长。

公开(公告)号：EP1170618A2

公开(公告)日：2002-01-09

申请号：EP01305713.8

申请日：2001-07-02

申请人： SONY CORPORATION

发明人： Ishikawa, HIROICHI

IPC分类号： G02B26/02 ,  G02F1/21

CPC分类号： G02B6/3524 ,  G02B5/284 ,  G02B5/285 ,  G02B5/286 ,  G02B6/3512 ,  G02B6/3544 ,  G02B6/355 ,  G02B6/3572 ,  G02B6/3584 ,  G02B6/3594 ,  G02B26/001

摘要： An optical multilayer structure (1) has a substrate, a light-absorbing first layer (11) in contact with the substrate (10), a gap portion (12) having a changeable size capable of causing an optical interference phenomenon, and a second layer (13). By changing the size of the gap portion (12), an amount of reflection, transmission, or absorption of incident light can be changed. For example, the substrate (10) is made of carbon (C), the first layer (11) is made of tantalum (Ta), and the second layer (13) is made of silicon nitride (Si 3 N 4 ). Also in a visible light area, high response is realized. Consequently, the optical multilayer structure can be suitably used for an image display.
In one alternative the optical multilayer structure may be obtained by stacking, on a substrate made of a metal such as chromium (Cr), a first transparent layer made of a material having a high refractive index such as TiO 2 (n = 2.40), a second transparent layer made of a material having a low refractive index such as MgF 2 (n = 1.38), a gap portion having a changeable size capable of causing an optical interference phenomenon, and a third transparent layer made of a material having a high refractive index such as TiO 2 .
The structure may be used in an optical switching device and in an image display.

摘要翻译： 光学多层结构（1）具有基板，与基板（10）接触的光吸收第一层（11），具有能够引起光学干涉现象的可变尺寸的间隙部分（12），第二 层（13）。 通过改变间隙部分（12）的尺寸，可以改变入射光的反射，透射或吸收的量。 例如，基板（10）由碳（C）构成，第一层（11）由钽（Ta）构成，第二层（13）由氮化硅（Si 3 N 4）构成。 同样在可见光区域，实现了高响应。 因此，光学多层结构可以适合用于图像显示。 在一个替代方案中，光学多层结构可以通过在由诸如铬（Cr）的金属制成的衬底上堆叠由具有高折射率的材料（例如TiO 2）制成的第一透明层（n = 2.40），由具有低折射率的材料如MgF 2（n = 1.38）制成的第二透明层，具有可引起光学干涉现象的可变尺寸的间隙部分和由具有光学干涉现象的材料制成的第三透明层， 高折射率，如TiO2。 结构可以用在光学开关装置和图像显示器中。

公开(公告)号：EP0655341B1

公开(公告)日：2001-10-24

申请号：EP94308747.8

申请日：1994-11-28

申请人： XEROX CORPORATION

发明人： Nochebuena, Rogelio F. ,  Paoli, Thomas L.

IPC分类号： B41J2/44 ,  G06K15/12 ,  G02F1/21

CPC分类号： B41J2/465