公开(公告)号：US06650684B1

公开(公告)日：2003-11-18

申请号：US08566222

申请日：1995-12-01

Applicant: Michael R. T. Tan ,  Kenneth H. Hahn ,  Long Yang ,  Shih-Yuan Wang

Inventor： Michael R. T. Tan ,  Kenneth H. Hahn ,  Long Yang ,  Shih-Yuan Wang

IPC: H01S308

CPC classification number: H01S5/18375 ,  H01S5/0425 ,  H01S5/18327 ,  H01S5/18377 ,  H01S2301/18

Abstract: A surface-emitting laser (“SEL”) having predictable filamentation initiation. The SEL includes a light generation layer and first and second mirror layers. The first and second mirror layers reflect light generated in the light generation region back toward the light generation region. Each of the mirrors reflects light such that it adds coherently to the light generated in the light generation region or to the light reflected from the other mirror. One of the mirrors includes a localized imperfection which causes light interacting therewith to be attenuated or shifted in phase relative to light that does not interact with the imperfection region. As a result, lasing filaments are preferentially initiated in the regions adjacent to the localized imperfection.

Abstract translation: 具有可预测的丝状起始的表面发射激光器（“SEL”）。 SEL包括光产生层和第一和第二镜层。 第一和第二镜像层将发光区域中产生的光反射回发光区域。 每个反射镜反射光，使得它相干地添加到在光产生区域中产生的光或从另一个反射镜反射的光。 其中一个反射镜包括局部缺陷，其导致与其相互作用的光相对于不与不完美区域相互作用的光相位相位衰减或偏移。 结果，激光丝优先在与局部缺陷相邻的区域中起始。

公开(公告)号：US06445856B1

公开(公告)日：2002-09-03

申请号：US09871676

申请日：2001-06-04

Applicant: Long Yang

Inventor： Long Yang

IPC: G02B626

CPC classification number: G02B6/2746 ,  G01J1/4257 ,  G01J2004/005 ,  G02B6/2937 ,  G02B6/327 ,  G02B6/4213 ,  G02B6/4215 ,  G02B6/4251 ,  G02B6/4259 ,  G02B6/4286

Abstract: The most common method of testing the various aspects of light traveling in a waveguide includes tapping a portion of the light and directing the tapped portion at an appropriate sensor. Conventionally, the simplest method for tapping light utilized a fused fiber coupler; however, even this method requires additional fiber splicing and management steps that increase manufacturing costs. The present invention uses a beam splitter, positioned inside a centerpiece sleeve in the path of the light, to direct a portion of the beam through the wall of the centerpiece sleeve to a monitoring sensor, preferably a photodiode. The centerpiece sleeve includes a window, which is at least partially transparent to the light, enabling the tapped portion of the light to reach the monitoring sensor. Preferably, the centerpiece sleeve is manufactured entirely out of glass.

Abstract translation: 测试在波导中行进的光的各个方面的最常见的方法包括敲击光的一部分并且将敲击的部分引导到适当的传感器。 通常，采用熔化光纤耦合器的最简单的轻击方法 然而，即使这种方法需要额外的光纤拼接和管理步骤来增加制造成本。 本发明使用位于光路径内的中心套筒内部的分束器，以将束的一部分穿过中心套筒的壁引导到监测传感器，优选光电二极管。 中心套筒包括至少部分地透光的窗户，使得轻敲的部分能够到达监视传感器。 优选地，中心套筒完全由玻璃制成。

公开(公告)号：US06317531B1

公开(公告)日：2001-11-13

申请号：US09397821

申请日：1999-09-17

Applicant: Yong Chen ,  Long Yang ,  Shih-Yuan Wang

Inventor： Yong Chen ,  Long Yang ,  Shih-Yuan Wang

IPC: G03B642

CPC classification number: G02F1/31 ,  G02F1/1523 ,  G02F1/19 ,  G02F2202/34 ,  G02F2203/02

Abstract: An optical cross-connect switch for routing light signals between N input optical fibers and M output optical fibers. The switch includes an NxM array of optical switching elements, each optical switching element routing a light signal from one of the input optical fibers to one of the output optical fibers. Each optical switching element includes a layer of a switching material, first and second transparent electrodes overlying the layer of switching material, and a layer of hydrogen reservoir material adjacent to the layer of switching material. The switching material has first and second states. The switching material is transparent to the light signals in the first state, and the switching material reflects the light signals in the second state. The state of the switching material is determined by the concentration of hydrogen in the material. The hydrogen reservoir material supplies hydrogen to the switching material when a first potential difference is applied between the first and second electrodes and absorbs hydrogen from the switching material when a second potential difference is applied between the first and second electrodes. The switching material preferably includes a material chosen from the group consisting of alkali, alkaline-earth, rare-earth metals, and the hydrides thereof.

Abstract translation: 用于在N个输入光纤和M个输出光纤之间路由光信号的光交叉连接开关。 该开关包括一个光学开关元件的NxM阵列，每个光开关元件将来自一个输入光纤的光信号路由到输出光纤之一。 每个光开关元件包括开关材料层，覆盖开关材料层的第一和第二透明电极以及与开关材料层相邻的一层氢储存器材料。 开关材料具有第一和第二状态。 开关材料在第一状态下对于光信号是透明的，并且开关材料在第二状态下反射光信号。 开关材料的状态由材料中的氢的浓度决定。 当在第一和第二电极之间施加第二电位差时，在第一和第二电极之间施加第一电位差并从开关材料吸收氢时，储氢器材料向开关材料供应氢。 开关材料优选包括选自碱金属，碱土金属，稀土金属及其氢化物的材料。

公开(公告)号：US06100586A

公开(公告)日：2000-08-08

申请号：US862461

申请日：1997-05-23

Applicant: Yong Chen ,  Long Yang ,  Shih-Yuan Wang ,  Richard P. Schneider

Inventor： Yong Chen ,  Long Yang ,  Shih-Yuan Wang ,  Richard P. Schneider

IPC: H01S5/00 ,  H01L29/45 ,  H01L33/10 ,  H01L33/32 ,  H01L33/40 ,  H01S5/042 ,  H01S5/323 ,  H01L21/28

CPC classification number: H01L33/40 ,  H01L29/452 ,  H01L33/105 ,  H01L33/32 ,  H01S5/0421 ,  H01S5/32341

Abstract: An electrical contact that comprises a layer of a p-type gallium nitride material, a metal layer, and an intermediate layer of a material different from the gallium nitride material and the metal layer. The intermediate layer is sandwiched between the layer of p-type gallium nitride material and the metal layer. The material of the intermediate layer may be a Group III-V semiconductor that has high band-gap energy, lower than that of the p-type gallium nitride material. The intermediate layer may alternatively include layers of different Group III-V semiconductors. The layers of the different Group III-V semiconductors are arranged in order of their band-gap energies, with the Group III-V semiconductor having the highest band-gap energy next to the layer of the p-type gallium nitride material, and the Group III-V semiconductor having the lowest band-gap energy next to the metal layer. As a further alternative, the material of the intermediate layer may be a metal nitride. As a yet further alternative, the material of the intermediate layer may be a gallium nitride material in which a percentage of the nitrogen atoms are replaced by a mole fraction x of atoms of at least one other Group V element. The value of x is close to zero next to the p-type gallium nitride material, and is substantially greater next to the metal layer. This intermediate layer may alternatively be sandwiched between a layer of n-type gallium nitride material and a metal layer to make an n-contact.

Abstract translation: 包括p型氮化镓材料层，金属层和不同于氮化镓材料和金属层的材料的中间层的电接触。 中间层夹在p型氮化镓材料层和金属层之间。 中间层的材料可以是具有比p型氮化镓材料低的带隙能量的III-V族半导体。 中间层可以替代地包括不同III-V族不同的半导体层。 不同的III-V族半导体层按照它们的带隙能量的顺序排列，III-V族半导体在p型氮化镓材料层的旁边具有最高的带隙能量， 具有与金属层相邻的最小带隙能量的III-V族半导体。 作为另外的替代方案，中间层的材料可以是金属氮化物。 作为另外的替代方案，中间层的材料可以是氮化镓材料，其中氮原子的百分比被至少一个其它V族元素的原子的摩尔分数x代替。 x值接近于p型氮化镓材料，并且在金属层附近大大地增加。 该中间层可替代地夹在n型氮化镓材料层和金属层之间以进行n接触。

公开(公告)号：US5862283A

公开(公告)日：1999-01-19

申请号：US705870

申请日：1996-08-28

Applicant: Gary R. Trott ,  Kent W. Carey ,  Long Yang

Inventor： Gary R. Trott ,  Kent W. Carey ,  Long Yang

IPC: G02B6/36 ,  G02B6/42 ,  G02B7/00

CPC classification number: G02B6/4231 ,  G02B6/4219 ,  G02B6/423 ,  G02B7/00 ,  G02B6/4246

Abstract: A method of precisely mounting a planar optical component on a mounting member includes the step of placing a plurality of balls on the mounting member to precisely define a geometric plane. The planar optical component is then placed against each of the balls on the mounting member such that the planar optical component is along the defined geometric plane on the mounting member. In addition, the planar optical component can also be mounted on the mounting member by first forming a groove in the mounting member. An end of the planar optical component is then shaped to match that of at least one wall of the groove. The planar optical component can then be placed in the groove such that the shaped end of the planar optical component is placed against the wall of the groove.

Abstract translation: 将平面光学部件精确地安装在安装部件上的方法包括将多个球放置在安装部件上以精确地限定几何平面的步骤。 然后将平面光学部件放置在安装构件上的每个球上，使得平面光学部件沿着安装部件上限定的几何平面。 此外，平面光学部件也可以通过在安装部件中首先形成凹槽而安装在安装部件上。 然后将平面光学部件的端部成形为与槽的至少一个壁的端部匹配。 然后可以将平面光学部件放置在凹槽中，使得平面光学部件的成形端抵靠凹槽的壁放置。

公开(公告)号：US5808793A

公开(公告)日：1998-09-15

申请号：US588042

申请日：1996-01-17

Applicant: Kok Wai Chang ,  Long Yang

Inventor： Kok Wai Chang ,  Long Yang

IPC: G02B27/28 ,  G02B6/42 ,  G02F1/09 ,  G02B1/10

CPC classification number: G02F1/093 ,  G02B6/4208 ,  Y10S359/90 ,  Y10S372/703

Abstract: An optical isolator unit is aligned, assembled, and subsequently diced into smaller isolator chips for placement in a micro-optical bench, along with input and an output fiber coupling ball lenses. Polarizers (for polarization-dependent isolators) or birefringence walkoff crystals (for polarization-independent isolators) are aligned and then glued together with 45.degree. Faraday rotators using an optical-grade adhesive. The surfaces of the components are AR-coated to match the index of the optical-grade adhesive. An optical isolator unit formed in this manner is then diced into a plurality of optical isolator chips with a high-speed wafer saw. The optical isolator unit is preferably mounted on any one of its sides in such a way that only a smallest possible cutting depth is required for dicing, i.e., it is mounted such that a thinnest dimension of the isolator is presented for cutting, such that material loss due to cutting is reduced and delamination of the optical isolator chips is prevented.

Abstract translation: 光隔离器单元被对准，组装并随后切割成更小的隔离器芯片以放置在微型光学台中，以及输入和输出光纤耦合球透镜。 对准偏振器（用于偏振相关隔离器）或双折射散射晶体（用于偏振无关隔离器），然后使用光学级粘合剂与45°法拉第旋转器胶合在一起。 组件的表面被涂覆以匹配光学级粘合剂的指数。 以这种方式形成的光隔离器单元然后用高速晶片锯切成多个光隔离器芯片。 光学隔离器单元优选地安装在其任何一侧上，使得切割需要只有最小可能的切割深度，即安装成使得隔离器的最薄尺寸呈现用于切割，使得材料 减少由于切割而导致的损耗，防止了光隔离器芯片的分层。

公开(公告)号：US5699463A

公开(公告)日：1997-12-16

申请号：US497497

申请日：1995-06-28

Applicant: Long Yang ,  Gary R. Trott ,  Karl Shubert ,  Karl Salomaa ,  Kent W. Carey

Inventor： Long Yang ,  Gary R. Trott ,  Karl Shubert ,  Karl Salomaa ,  Kent W. Carey

IPC: G02B6/24 ,  B81B1/00 ,  G02B6/35 ,  G02B26/08 ,  G02B6/26 ,  G02B6/42

CPC classification number: G02B6/3508 ,  G02B6/3548 ,  G02B6/359 ,  G02B6/3596

Abstract: A switch for selectively coupling light from an input optical fiber to a selected one of a plurality of output optical fibers. The switch includes a first carriage having one end of the input optical fiber attached thereto and a second carriage having the output optical fibers attached thereto such that one end of each of the output optical fiber lies between first and second distances with respect to the end of the input optical fiber when the output optical fiber is aligned with the input optical fiber. A lens that is fixed with respect to the end of the input optical fiber images light leaving the input optical fiber onto a plane lying between the first and second distances from the end of the input optical fiber. In one embodiment of the present invention, an encoder is integrated into the first and second carriages. The encoder includes an encoding input optical fiber having one end attached to the first carriage, the encoding input optical fiber being a single mode optical fiber. Light leaving the encoder is received by a second single mode optical fiber when the carriages are in a specified relationship to one another. The second single mode optical fiber can either be a fiber on the second carriage or encoding input optical fiber itself. In the later case, the second carriage includes a reflector which images the light from the encoding input optical fiber back into the encoding input optical fiber.

Abstract translation: 一种用于将光从输入光纤选择性地耦合到多个输出光纤中选定的一个的开关。 开关包括第一滑架，其具有连接到其上的输入光纤的一端，以及第二滑架，其具有连接到其上的输出光纤，使得每个输出光纤的一端位于相对于 当输出光纤与输入光纤对准时的输入光纤。 相对于输入光纤的端部固定的透镜将离开输入光纤的光图像到距离输入光纤端部的第一和第二距离之间的平面上。 在本发明的一个实施例中，编码器集成在第一和第二托架中。 编码器包括编码输入光纤，其一端连接到第一托架，编码输入光纤为单模光纤。 离开编码器的光通过第二单模光纤接收，当滑架彼此具有特定的关系时。 第二单模光纤可以是第二托架上的光纤或编码输入光纤本身。 在后一种情况下，第二托架包括将来自编码输入光纤的光成像回到编码输入光纤的反射器。

公开(公告)号：US4896057A

公开(公告)日：1990-01-23

申请号：US244761

申请日：1988-09-14

Applicant: Long Yang ,  Stephen I. Long

Inventor： Long Yang ,  Stephen I. Long

IPC: H03K19/0952 ,  H03K19/096

CPC classification number: H03K19/0952 ,  H03K19/096

Abstract: A dynamic logic circuit (AND or OR) utilizes one depletion-mode metal-semiconductor FET for precharging an internal node A, and a plurality of the same type of FETs in series, or a FET in parallel with one or more of the series connected FETs for implementing the logic function. A pair of FETs are connected to provide an output inverter with two series diodes for level shift. A coupling capacitor may be employed with a further FET to provide level shifting required between the inverter and the logic circuit output terminal. These circuits may be cascaded to form a domino chain.

Abstract translation: 动态逻辑电路（AND或OR）利用一个耗尽型金属半导体FET来预充电一个内部节点A，以及串联的多个相同类型的FET，或与串联连接的一个或多个并联的FET 用于实现逻辑功能的FET。 连接一对FET以提供具有用于电平移位的两个串联二极管的输出反相器。 可以使用耦合电容器与另外的FET来提供逆变器和逻辑电路输出端子之间所需的电平移位。 这些电路可以级联以形成多米诺链。

公开(公告)号：US11107947B2

公开(公告)日：2021-08-31

申请号：US16447050

申请日：2019-06-20

Applicant: Long Yang ,  Chao-Kun Lin

Inventor： Long Yang ,  Chao-Kun Lin

IPC: H01L33/00 ,  H01L25/075 ,  H01L33/12 ,  H01L33/16 ,  H01L33/30 ,  H01L33/32 ,  H01L33/40 ,  H01L33/62 ,  H01L33/44 ,  H01L21/66 ,  H01L33/06

Abstract: Embodiments generally relate to micro-device arrays. In some embodiments, an array comprises a substrate and a plurality of micro-devices. Each micro-device is suspended over a cavity in the substrate by at least one lateral hinge attached to a side post formed into the substrate. Each micro-device comprises a bonding layer; a metal contact; semiconductor device layers; and a buffer layer. The semiconductor device layers may comprise GaN-based LED layers; wherein the buffer layer comprises AlGaN; and wherein the substrate comprises (111) oriented Silicon. In other cases, the semiconductor device layers may comprise InGaAsP-based LED layers; wherein the buffer layer comprises InGaP; and wherein the substrate comprises GaAs.

公开(公告)号：US08611742B2

公开(公告)日：2013-12-17

申请号：US13048773

申请日：2011-03-15

Applicant: Long Yang ,  Jeffrey E. Ehrlich ,  Massimo Martinelli

Inventor： Long Yang ,  Jeffrey E. Ehrlich ,  Massimo Martinelli

IPC: H04B10/02 ,  G02B6/26 ,  G01B9/02

CPC classification number: G02B6/356 ,  G02B6/3512 ,  G02B6/3556

Abstract: Optical switches can include collimator elements that accommodate two or more optical ports. This increases the number of ports the switch can accommodate without having to increase the size of other optical components within the switch. Separate deflectors can be used to accommodate optical signals from two different groups of ports. In some embodiments cross-coupling of signals between the two groups can be accomplished through use of re-direction optics.

Abstract translation: 光开关可以包括容纳两个或更多光端口的准直元件。 这增加了开关可以适应的端口数量，而不必增加开关内的其他光学部件的尺寸。 分离的偏转器可用于适应来自两个不同端口组的光信号。 在一些实施例中，两组之间的信号交叉耦合可以通过使用重新定向的光学器件实现。