公开(公告)号：US06447606B2

公开(公告)日：2002-09-10

申请号：US09320335

申请日：1999-05-26

Applicant: Minoru Imaeda ,  Takashi Yoshino

Inventor： Minoru Imaeda ,  Takashi Yoshino

IPC: C30B2812

CPC classification number: G02F1/377 ,  C30B23/02 ,  C30B29/30 ,  G02F1/3551 ,  G02F2201/307 ,  G02F2202/20 ,  Y10S117/904 ,  Y10S117/918

Abstract: A method for producing a single-crystalline film made of a single crystal of lithium potassium niobate-lithium potassium tantalate solid solution or a single crystal of lithium potassium niobate, including the steps of preparing a target made of a material for the single-crystalline film, preparing a foundation made of a single crystal of lithium potassium niobate-lithium potassium tantalate solid solution or a single crystal of lithium potassium niobate, irradiating the target to gasify molecules constituting the target by dissociation and evaporation thereof, and epitaxially growing the single-crystalline film on the foundation.

Abstract translation: 一种由铌酸锂钾 - 钾酸钾固溶体的单晶制成的单晶膜或铌酸锂钾的单晶的方法，包括以下步骤：制备由单晶膜材料制成的靶 制备由铌酸锂钾锂铌酸钾固溶体的单晶或铌酸锂钾的单晶构成的基体，照射靶，通过解离和蒸发来气化构成靶的分子，并外延生长单晶 电影在基础上。

公开(公告)号：US20020119400A1

公开(公告)日：2002-08-29

申请号：US09768048

申请日：2001-01-24

Inventor： Ravinder Jain ,  Balaji Srinivasan

IPC: G02B006/16 ,  B29D011/00

CPC classification number: G02B6/29322 ,  G02B6/02195 ,  G02B6/022 ,  G02B6/274 ,  G02B6/2746 ,  G02B6/29353 ,  G02B6/29355 ,  G02B6/4207 ,  G02F1/011 ,  G02F1/0115 ,  G02F1/3558 ,  G02F2001/212 ,  G02F2001/215 ,  G02F2201/307 ,  G02F2202/06 ,  G02F2202/07 ,  G02F2203/055 ,  G02F2203/07 ,  G02F2203/585 ,  G02F2203/62 ,  H01S3/0675 ,  H01S3/105

Abstract: The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.

Abstract translation: 本发明一般涉及电光学有源波导段，更具体地涉及使用选择性电压输入来控制波导中传播波的相位，频率和/或振幅。 本文描述了特定的装置结构和制造方法。

公开(公告)号：USRE37809E1

公开(公告)日：2002-07-30

申请号：US09053422

申请日：1998-04-01

Applicant: David A. G. Deacon ,  Simon J. Field ,  Michael J. Brinkman ,  William K. Bischel

Inventor： David A. G. Deacon ,  Simon J. Field ,  Michael J. Brinkman ,  William K. Bischel

IPC: H01S308

CPC classification number: H01S3/063 ,  G02F2201/30 ,  G02F2201/307 ,  H01S3/0092 ,  H01S3/0635 ,  H01S3/1055 ,  H01S3/108 ,  H01S3/109 ,  H01S5/141 ,  H01S5/4062

Abstract: One or more lasers are combined with optical energy transfer devices and energy guiding devices which use an electric field for control. The optical energy transfer devices may form gratings, mirrors, lenses and the like using a class of poled structures in solid material. The poled structures may be combined with waveguide structures. Electric fields applied to the poled structures control routing, reflection and refraction of optical energy. Adjustable tunability is obtained by a poled structure which produces a spatial gradient in a variable index of refraction along an axis in the presence of a variable electric field.

Abstract translation: 一个或多个激光器与使用电场进行控制的光能传递装置和能量引导装置组合。 光能转移装置可以使用固体材料中的一类极化结构形成光栅，反射镜，透镜等。 极化结构可以与波导结构组合。 施加到极化结构的电场控制光能的路由，反射和折射。 可调节的可调性通过极化结构获得，该极化结构在存在可变电场的情况下沿轴产生可变折射率的空间梯度。

公开(公告)号：US06424763B1

公开(公告)日：2002-07-23

申请号：US09698305

申请日：2000-10-27

Applicant: Pierre R. Villeneuve ,  Shanhui Fan ,  Gale S. Petrich ,  Leslie A. Kolodziejski ,  John D. Joannopoulos

Inventor： Pierre R. Villeneuve ,  Shanhui Fan ,  Gale S. Petrich ,  Leslie A. Kolodziejski ,  John D. Joannopoulos

IPC: G02B642

CPC classification number: G02F1/011 ,  B82Y10/00 ,  G02F1/3132 ,  G02F2201/307 ,  G02F2203/055 ,  G02F2203/15 ,  G02F2203/585

Abstract: A tunable electromagnetic field frequency filter having an input waveguide which carries a signal including at least one desired frequency, and an output waveguide. A resonator-system is coupled to the input and output waveguides and is operable for the selective transfer of the at least one desired frequency to the output waveguide. The resonator-system supports at least two system modes, and includes at least three reflectors with at least two different reflectivity spectra. At least one of the reflectivity spectra is tuned such that at least two of the system-modes have substantially the same frequency when the transfer occurs substantially.

Abstract translation: 一种具有输入波导的可调谐电磁场频率滤波器，其输入包括至少一个期望频率的信号和输出波导。 谐振器系统耦合到输入和输出波导，并且可操作用于将至少一个期望频率选择性地传送到输出波导。 谐振器系统支持至少两个系统模式，并且包括具有至少两个不同反射率光谱的至少三个反射器。 至少一个反射光谱被调谐，使得至少两个系统模式在基本上发生转印时具有基本相同的频率。

公开(公告)号：US20020076149A1

公开(公告)日：2002-06-20

申请号：US09784825

申请日：2001-02-15

Inventor： David A.G. Deacon

IPC: G02B006/26

CPC classification number: G02F1/011 ,  G02B6/1228 ,  G02B6/30 ,  G02B6/42 ,  G02B6/4201 ,  G02B6/4266 ,  G02B2006/12119 ,  G02F1/0147 ,  G02F1/065 ,  G02F1/3132 ,  G02F2201/307

Abstract: The several embodiments of the invention include digitally tunable laser source, add-drop and cross connect devices, a tapered waveguide, a lensed waveguide, an asymmetric waveguide pair, a temperature sensor, and a tunable laser array, as well as methods for making and tuning these devices. The laser source, add-drop, and cross connect devices include materials with negative dependence of refractive index on temperature and temperature independent coincidence between resonator modes and a set of specified frequencies, e.g. for DWDM telecommunications channels. The free spectral range may be adjusted to equal a rational fraction of the specified frequency interval. The operating frequency may be selected by a thermo-optically tuned feedback element without substantially tuning the cavity modes. This can be accomplished by means of a waveguide pair with differential thermal response. The operating frequency may be induced to hop digitally between the specified frequencies. In a particular embodiment, semiconductor amplifier and polymer waveguide segments form a linear resonator with a thermo-optically tuned grating reflector. In a further embodiment, an amplifier and two waveguides from a tunable grating assisted coupler form a ring resonator. Tuning may also be accomplished by applying an electric field across a liquid crystal portion of the waveguide structure within the grating. The differential waveguide pair may also be used as a temperature or electric field sensor, or it may be used in a waveguide array to adjust a phase relationship, e.g. in an arrayed waveguide grating. A tapered waveguide may be used to couple different size waveguides, e.g. in a resonator having both a semiconductor diode amplifier waveguide and a planar waveguide structure for coupling to an optical fiber. A lensed planar waveguide may be used to couple to a different size waveguide, e.g. a semiconductor diode amplifier waveguide.

Abstract translation: 本发明的几个实施例包括数字可调激光源，分插和交叉连接装置，锥形波导，透镜波导，不对称波导对，温度传感器和可调谐激光阵列，以及制造和 调整这些设备。 激光源，分插和交叉连接装置包括折射率的负依赖性对谐振器模式与一组指定频率之间的温度和温度独立一致的材料，例如， 用于DWDM电信渠道。 可以将自由光谱范围调整为等于指定频率间隔的有理分数。 可以通过热光调谐反馈元件选择工作频率，而基本上不调谐空腔模式。 这可以通过具有差分热响应的波导对来实现。 可以在指定的频率之间数字地诱导工作频率跳变。 在特定实施例中，半导体放大器和聚合物波导段形成具有热光调谐光栅反射器的线性谐振器。 在另一实施例中，来自可调谐光栅辅助耦合器的放大器和两个波导形成环形谐振器。 也可以通过在光栅内的波导结构的液晶部分上施加电场来实现调谐。 差分波导对还可以用作温度或电场传感器，或者它可以用在波导阵列中以调节相位关系，例如， 在阵列波导光栅中。 可以使用锥形波导来耦合不同尺寸的波导，例如， 在具有半导体二极管放大器波导和用于耦合到光纤的平面波导结构的谐振器中。 透镜平面波导可以用于耦合到不同尺寸的波导，例如， 半导体二极管放大器波导。

公开(公告)号：US20020071646A1

公开(公告)日：2002-06-13

申请号：US09733182

申请日：2000-12-08

Inventor： Benjamin John Eggleton ,  Peter Mach ,  John A. Rogers ,  Paul Stephen Westbrook ,  Pierre Wiltzius

IPC: G02B006/20 ,  G02B006/22 ,  G02B006/34 ,  G02B006/26

CPC classification number: G02B6/02366 ,  G02B6/02085 ,  G02B6/02385 ,  G02B6/0239 ,  G02F1/0115 ,  G02F1/1334 ,  G02F1/167 ,  G02F2201/307 ,  G02F2202/32

Abstract: A unique waveguide structure is provided in which the waveguide contains individual scattering elements that are capable of being tuned to provide local refractive index variations, e.g., on a micron scalenullwhich is on the order of wavelengths typically used for communication system. According to the invention, the waveguide contains a core region, a cladding region, and a solid or liquid material having the tunable scattering elements dispersed therein, where the material is disposed within the core and/or cladding regions, and/or on the exterior of the cladding region. Useful scattering elements include, for example, liquid crystals dispersed in a polymer (polymer-dispersed liquid crystalsnullPDLC) or electrophoretic particles dispersed in a liquid medium.

Abstract translation: 提供了一种独特的波导结构，其中波导包含能够被调谐以提供局部折射率变化的单个散射元件，例如微米级，其通常用于通信系统。 根据本发明，波导包含芯区域，包层区域以及其中分散有可调谐散射元件的固体或液体材料，其中材料设置在芯和/或包层区域内和/或外部 的包层区域。 有用的散射元件包括例如分散在聚合物（聚合物分散液晶-PDLC）中的液晶或分散在液体介质中的电泳颗粒。

公开(公告)号：US06396994B1

公开(公告)日：2002-05-28

申请号：US09523101

申请日：2000-03-10

Applicant: Joshua Philipson ,  Feliks Lapinski ,  Mohiuddin Mala

Inventor： Joshua Philipson ,  Feliks Lapinski ,  Mohiuddin Mala

IPC: G02B600

CPC classification number: G02B6/022 ,  G02B6/3502 ,  G02B6/3572 ,  G02B6/3616 ,  G02F1/0115 ,  G02F2201/307

Abstract: Apparatus for modifying the optical characteristics of an optical fiber by controlled stretching of a length of the fiber, comprising a first fiber holder fixedly carried by a base and capable of firmly holding a first portion of the optical fiber, a lever part attached to the base at a fulcrum, and second fiber holder movably connected to the lever part and capable of firmly holding a second portion of the fiber, so that an intermediate length of fiber may be held taut between said first and second holding means. An electromagnetic circuit moves the lever part between first and second predetermined positions, so that the intermediate length of fiber is stretched as the lever part moves between first and second positions. Preferably, the intermediate length of fiber includes a Bragg grating.

Abstract translation: 一种用于通过控制拉伸一段光纤来改变光纤的光学特性的装置，包括由基座固定地承载并能够牢固地保持光纤的第一部分的第一光纤保持器，连接到基座的杆部分 以及第二光纤保持器，其可移动地连接到所述杆部分并且能够牢固地保持所述光纤的第二部分，使得纤维的中间长度可以保持在所述第一和第二保持装置之间。 电磁回路使杠杆部分在第一和第二预定位置之间移动，使得当杆部分在第一和第二位置之间移动时，纤维的中间长度被拉伸。 优选地，光纤的中间长度包括布拉格光栅。

公开(公告)号：US06393169B1

公开(公告)日：2002-05-21

申请号：US09226783

申请日：1999-01-06

Applicant: Mario J. Paniccia ,  Michael T. Morse ,  Valluri R.M. Rao

Inventor： Mario J. Paniccia ,  Michael T. Morse ,  Valluri R.M. Rao

IPC: G02B612

CPC classification number: G02B6/43 ,  G02B2006/12107 ,  G02B2006/12142 ,  G02F1/218 ,  G02F2001/0152 ,  G02F2201/307

Abstract: A method and an apparatus providing an optical interconnection in an integrated circuit die. In one embodiment, an optical interconnection is used to optically interconnect a waveguide-based optical modulator through the insulating layer and back side of the semiconductor substrate of the integrated circuit die. In one embodiment, an insulating oxide layer is disposed between a semiconductor waveguide optical modulator and the back side of the semiconductor substrate. Optical conduits are disposed in the insulating oxide layer at the locations where light enters and exits the semiconductor waveguide optical modulator. In one embodiment, the optical conduits have indexes of refraction substantially equal to the indexes of refraction of the semiconductor substrate and the semiconductor waveguide optical modulator. Thus, attenuation of the light used to optically couple the semiconductor waveguide optical modulator through the back side of the semiconductor substrate is reduced.

Abstract translation: 一种在集成电路管芯中提供光互连的方法和装置。 在一个实施例中，光互连用于通过集成电路管芯的半导体衬底的绝缘层和背面光学地互连基于波导的光学调制器。 在一个实施例中，绝缘氧化物层设置在半导体波导光调制器和半导体衬底的背面之间。 在光入射到半导体波导光调制器的位置处，光导管设置在绝缘氧化物层中。 在一个实施例中，光导管的折射指数基本上等于半导体衬底和半导体波导光调制器的折射率。 因此，减少了通过半导体衬底的背面光耦合半导体波导光学调制器的光的衰减。

公开(公告)号：US20020027698A1

公开(公告)日：2002-03-07

申请号：US09886251

申请日：2001-06-22

Applicant: Communications Research Laboratory, Independent Administrative Institution

Inventor： Tetsuya Kawanishi

IPC: G02F001/01 ,  G02B026/00 ,  G02F001/03 ,  G02F001/07

CPC classification number: G02F2/02 ,  G02F2201/17 ,  G02F2201/307

Abstract: An optical frequency converter using reciprocating modulation includes a device that, taking n as a predetermined integer of 1 or more, modulates light of a predeternined frequency to produce an nth order sideband group thereof, a device that modulates the nth order sideband group to produce an (nnull1)th order sideband group, and a device that selects a specific sideband from a plurality of sideband groups.

Abstract translation: 使用往复式调制的光频变频器包括以n为1以上的规定的整数调制预定频率的光以产生其n阶边带组的装置，调制n阶边带组以产生 （n + 1）个边带组，以及从多个边带组中选择特定边带的装置。

公开(公告)号：US06351586B1

公开(公告)日：2002-02-26

申请号：US09473665

申请日：1999-12-29

Applicant: Mark F Krol ,  Yongqian Liu

Inventor： Mark F Krol ,  Yongqian Liu

IPC: G02B626

CPC classification number: G02B6/29353 ,  G02F1/225 ,  G02F1/2252 ,  G02F2201/307

Abstract: A Mach-Zehnder device includes a delay element in one arm which delays propagation of light at a first wavelength relative to propagation of light at a second wavelength. The delay element may be made up of a grating having a period which causes coupling of the first wavelength from a first mode into a second mode. In another aspect, the invention includes a second grating positioned downstream from the first grating and having a period which causes coupling of the portion of light from the second propagation mode back into the first propagation mode. Also disclosed is an optical waveguide in which light at a wavelength &lgr; can propagate in at least a first and a second mode. The waveguide has an effective index of refraction n1 with respect to the first propagation mode of &lgr;, and an effective index of refraction n2 with respect to the second propagation mode. A grating formed in said waveguide and having a period approximately equal to(&lgr;/2)(n1−n2).

Abstract translation: 马赫 - 策德尔（Mach-Zehnder）装置包括一个臂中的延迟元件，该延迟元件相对于在第二波长处的光的传播来延迟第一波长的光的传播。 延迟元件可以由具有使第一波长从第一模式耦合到第二模式的周期的光栅组成。 在另一方面，本发明包括位于第一光栅下游的第二光栅，并且具有使来自第二传播模式的光部分的耦合返回到第一传播模式的周期。 还公开了一种光波导，其中波长λ的光可以在至少第一和第二模式中传播。 波导相对于羔羊的第一传播模式具有有效折射率n1，相对于第二传播模式具有有效的折射率n2。 形成在所述波导中并且具有大约等于（lambd / 2）（n1-n2）的周期的光栅。