公开(公告)号：EP0505844A2

公开(公告)日：1992-09-30

申请号：EP92104292.5

申请日：1992-03-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Boysel, Robert M. ,  Magel, Gregory A.

IPC: G02B26/00 ,  G02B26/02 ,  G02B6/12 ,  G02F1/01

CPC classification number: G02B6/122 ,  G02B26/02 ,  G02F1/011 ,  G02F1/3132 ,  G02F2001/0142 ,  G02F2201/06 ,  G02F2203/07 ,  G02F2203/22

Abstract: It is possible to utilize changes in the complex effective refractive index caused by bringing a metal membrane in close proximity to the core of an optical waveguide to form many devices. The invention described herein provides structures and processes that do 50, the structure comprising a substrate (10), a lower cladding (14), a waveguide core (16), a removable upper cladding (18) which supports a metal membrane (22), and an electrode (12) for deflecting said membrane.
Switchable devices using this structure include, but are not limited to, polarizers, mode converters, optical switches, Bragg devices, directional couplers and channel waveguides.

Abstract translation: 可以利用通过使金属膜紧邻光波导的芯而引起的复合有效折射率的变化，以形成许多器件。 本文描述的本发明提供的结构和过程为50，该结构包括衬底（10），下包层（14），波导芯（16），支撑金属膜（22）的可移除上包层（18） ，以及用于偏转所述膜的电极（12）。 使用该结构的可切换装置包括但不限于偏振器，模式转换器，光开关，布拉格器件，定向耦合器和沟道波导。

公开(公告)号：KR20180006266A

公开(公告)日：2018-01-17

申请号：KR20167035538

申请日：2015-06-08

Applicant: UNIV FEDERAL DO PARA UFPA

Inventor： DMITRIEV VICTOR ,  PORTELA GIANNI MASAKI TANAKA ,  BATISTA RAPHAEL RAFSANDJANI

IPC: G02B6/35 ,  G02F1/095

CPC classification number: G02F1/3133 ,  G02B6/35 ,  G02F1/095 ,  G02F1/313 ,  G02F2201/06 ,  G02F2202/32

Abstract: 본발명은 2개의도파관과공진공동이생기게하면서디펙트들이삽입된 2차원광 결정에기초한다. 장치를통과하여지나가는전자기신호는이를둘러싸는주기적구조물과연관된광 밴드갭 때문에디펙트들내에구속된다. 본발명의주된기능은, 그통과를허용 (온(on) 상태) 또는차단 (오프(off) 상태)하면서, 통신채널을따라서전자기신호의흐름을제어하는것이다. 본발명은또한 120도각도까지전자기신호의전파방향을바꾸게하고, 그에따라집적된광 시스템들의구조에더 큰유연성을제공한다. 상기장치의작동원리는그 공진공동에서다이폴모드의여기에기초하고, 이를구성하는광자기물질에외부 DC 자기장을적용에따른다. 온(on) 상태및 오프(off) 상태에서, 광자기물질은각각자기화되고비자기화된다.

Abstract translation: 本发明基于二维光子晶体，其中插入了起源于两个波导和一个谐振腔的缺陷。 由于与包围它的周期性结构相关的光子带隙，跨越器件的电磁信号被限制在缺陷的内部。 其主要功能是通过通信信道控制电磁信号的通量，阻断（断开）或允许（通过）信号通过。 它还促进了电磁信号的传播方向改变120度的角度，为集成光学系统的设计提供了更大的灵活性。 该装置的工作原理是基于谐振腔中偶极子模式的激励，从而在构成它的磁光材料上施加外部直流磁场。 在开启和关闭的状态下，磁光材料分别被磁化和非磁化。

公开(公告)号：KR100261399B1

公开(公告)日：2000-07-01

申请号：KR1019920005060

申请日：1992-03-27

Applicant: 텍사스 인스트루먼츠 인코포레이티드

Inventor： 로버트엠.보이젤 ,  그레고리에이.메이겔

IPC: G02B6/064

CPC classification number: G02B6/122 ,  G02B26/02 ,  G02F1/011 ,  G02F1/3132 ,  G02F2001/0142 ,  G02F2201/06 ,  G02F2203/07 ,  G02F2203/22

Abstract: 금속막을 광 도파관의 코어에 근접하게 함으로써 발생되는 복소수 유효 굴절률 내의 변화를 사용하여 다수의 디바이스를 형성하는 것이 가능하다. 본 발명은 이를 응용하는 구조물 및 공정을 제공하며, 구조물은 기판(10), 하부 피복층(14), 도파관 코어(16), 금속막(22)를 지지하는 제거가능한 상부 피복층(18) 및 상기 막을 편향시키기 위한 전극(12)를 포함한다.
이 구조물을 사용하는 스위치식 디바이스에는 편광자, 모드 변환기, 광 스위치, 브랙 디바이스, 방향성 결합기 및 채널 도파관이 포함되나 이에 제한되는 것은 아니다.

公开(公告)号：US12046165B2

公开(公告)日：2024-07-23

申请号：US18349362

申请日：2023-07-10

Applicant: LUMUS LTD.

Inventor： Shimon Grabarnik ,  Tsion Eisenfeld ,  Elad Sharlin

IPC: G02F1/01 ,  G09G3/00

CPC classification number: G09G3/001 ,  G02F1/011 ,  G02F2201/06 ,  G02F2203/01 ,  G02F2203/02 ,  G09G2320/0257 ,  G09G2354/00 ,  G09G2360/144

Abstract: In an embodiment, an apparatus is disclosed that includes at least one processor configured to determine a target portion of an eye motion box and to identify a facet of a light-guide optical element that is configured to direct a light beam comprising at least a portion of an image field of view toward the target portion of the eye motion box. The at least one processor is configured to identify a display region of an image generator that is configured to inject the light beam into the light-guide optical element at an angle that, in conjunction with the identified facet, is configured to direct the light beam toward the target portion of the eye motion box. The at least one processor is configured to selectively activate the identified facet and the identified display region to direct the light beam toward the target portion of the eye motion box.

公开(公告)号：US20240231177A1

公开(公告)日：2024-07-11

申请号：US18558466

申请日：2022-05-03

Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e. V. ,  University of Toronto

Inventor： Jason MAK ,  Youngho JUNG ,  Wesley SACHER ,  Joyce POON

IPC: G02F1/29 ,  G02F1/01

CPC classification number: G02F1/292 ,  G02F1/0147 ,  G02F2201/06 ,  G02F2201/302 ,  G02F2202/10 ,  G02F2203/24 ,  G02F2203/50

Abstract: A beam-steering device (100) for spatial steering of a light beam comprises a waveguide array (10) being arranged on a substrate (50) and comprising a waveguide array input (12), multiple waveguides (14-1, 14-2, . . . , 14-i) and a waveguide array output (16), wherein the multiple waveguides (14-1, 14-2, . . . , 14-i) are adapted for simultaneously guiding light from the waveguide array input (12) to the waveguide array output (16) and for forming a light beam downstream of the waveguide array output (16) by superimposing the light guided by the waveguides (14-1, 14-2, . . . , 14-i), a phase shifter device (18) being arranged for applying controlled phase shifts to the light guided in each of the waveguides (14-1, 14-2, . . . , 14-i), and a grating array (22) including at least one patterned grating in optical communication with the waveguide array output (16), the grating array (22) being configured to radiate the light beam out of the beam-steering device (100) to a surrounding, wherein the waveguide array output (16) is arranged such that the light beam is formed downstream of the waveguide array output (16) with a main lobe and side lobes and with a beam angle Φ in a plane of the substrate (50), that is determined by the controlled phase shifts applied to the light by the phase shifter device (18) and a wavelength of the light, a slab propagation region (20) is arranged between the waveguide array output (16) and the grating array (22) such that the main lobe of the light beam is angularly relayed to the grating array (22) and the side lobes of the light beam leave lateral sides of the slab propagation region (20) before reaching the grating array (22), and the grating array (22) is arranged to radiate the light beam out of the beam-steering device (100) with a first angular direction with respect to the substrate (50), that is determined by the beam angle Φ. Furthermore, a method of beam-steering a light beam is described.

公开(公告)号：US11977314B2

公开(公告)日：2024-05-07

申请号：US17483643

申请日：2021-09-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takaiki Nomura ,  Masahiko Tsukuda ,  Yasuhisa Inada

IPC: G02B6/12 ,  G01S7/481 ,  G02B6/122 ,  G02B27/00 ,  G02F1/035 ,  G02F1/13 ,  G02F1/1339 ,  G02F1/137 ,  G02F1/29 ,  G02F1/295 ,  G01S17/08 ,  G02B6/124 ,  G02B6/125

CPC classification number: G02F1/2955 ,  G01S7/4817 ,  G02B6/12 ,  G02B6/122 ,  G02B27/0087 ,  G02F1/035 ,  G02F1/13 ,  G02F1/1326 ,  G02F1/1339 ,  G02F1/13394 ,  G02F1/137 ,  G02F1/292 ,  G02F1/295 ,  G01S7/481 ,  G01S17/08 ,  G02B6/12004 ,  G02B2006/121 ,  G02B2006/12104 ,  G02B2006/12107 ,  G02B2006/12138 ,  G02B6/124 ,  G02B6/125 ,  G02F2201/06 ,  G02F2201/066 ,  G02F2201/302

Abstract: An optical device includes a first substrate having a first surface, a second substrate having a second surface, at least one optical waveguide, and a plurality of spacers, disposed on at least either the first surface or the second surface, that include a first portion and a second portion. The first portion of the plurality of elastic spacers is at least one elastic spacer located in a region between the first substrate and the second substrate in which the first substrate and the second substrate overlap each other as seen from an angle parallel with a direction perpendicular to the first surface. The second portion of the plurality of elastic spacers is at least one elastic spacer located in a region in which the first substrate and the second substrate do not overlap each other as seen from an angle parallel with the direction perpendicular to the first surface.

公开(公告)号：US20180173024A1

公开(公告)日：2018-06-21

申请号：US15846413

申请日：2017-12-19

Applicant: NeoPhotonics Corporation

Inventor： Kenneth McGreer ,  Calvin Ho

IPC: G02F1/01 ,  G02F1/225

CPC classification number: G02F1/0147 ,  G02F1/225 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/06 ,  G02F2202/09 ,  G02F2203/48 ,  G02F2203/50

Abstract: Mach-Zehnder interferometers comprise heater elements configured to have projections in the plane of optical waveguides positioned such that two adjacent sections of one optical waveguide arms are heated by a common heater element. The heater and at least a substantial section of the heated waveguide segments can be curved. Configurations of an optical waveguide arm can comprise an outer curved heated section, an inner curved heated section, and a loopback waveguide section connecting the outer curved heated section and the inner curved heated section, with average radius of curvature selected to form an open accessible space. Appropriate configurations of the two optical waveguide arms provide for nested configurations of the arms that provide for a compact structure for the interferometer.

公开(公告)号：US20180081253A9

公开(公告)日：2018-03-22

申请号：US15492262

申请日：2017-04-20

Applicant: Chen-Kuo Sun

Inventor： Chen-Kuo Sun ,  Dingbo Chen

IPC: G02F1/313 ,  H01P11/00

CPC classification number: G02F1/3132 ,  G02B6/00 ,  G02B6/136 ,  G02B6/138 ,  G02F1/065 ,  G02F1/3133 ,  G02F2001/3135 ,  G02F2201/06 ,  G02F2201/12 ,  H01P11/003

Abstract: An optical modulator for switching an optical signal of wavelength λ from one waveguide-electrode to another requires that both waveguide-electrodes be made of an electrically conducting material. Also, a non-conducting cross-coupling material fills a slot along a length L between the waveguide-electrodes. Importantly, cross-coupling material in the slot provides a separation distance xc between the waveguide-electrodes that is less than 0.35 microns. When a switching voltage Vπ is selectively applied to the waveguide-electrodes, a strong uniform electric field E is created within the cross-coupling material. Thus, E modulates the cross-coupling length of the optical signal by an increment ±Δ each time it passes back and forth through the cross-coupling material along the length L. Thus, after an N number of cross-coupling length cycles along the length L, when NΔ equals one cross-coupling length, the optical signal is switched from one waveguide-electrode to the other.

公开(公告)号：US20180081206A1

公开(公告)日：2018-03-22

申请号：US15636474

申请日：2017-06-28

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Mary K. Salit

IPC: G02F1/125 ,  G02B6/122 ,  G02B6/132 ,  G02B6/136 ,  G01C19/72

CPC classification number: G02F1/125 ,  G01C19/721 ,  G02B6/036 ,  G02B6/122 ,  G02B6/132 ,  G02B6/136 ,  G02B2006/12176 ,  G02F2201/06

Abstract: An embodiment of a waveguide has a Brillouin bandwidth, and includes cladding and a core. The cladding includes first layers of a first material, each first layer having a physical characteristic of approximately a first value, and includes second layers of a second material, each second layer having the physical characteristic of approximately a second value, the second layers alternating with the first layers such that the Brillouin bandwidth is wider than the Brillouin bandwidth would be if the cladding excluded the first layers or excluded the second layers. For example, the first and second cladding layers can be formed from different materials, or can be formed having different values of a physical characteristic such as thickness, acoustic velocity, or index of refraction. Such a waveguide can facilitate alignment of the waveguide's optical bandwidth with the waveguide's Brillouin bandwidth because the Brillouin bandwidth is widened compared to conventional waveguides.

公开(公告)号：US09885939B2

公开(公告)日：2018-02-06

申请号：US15620809

申请日：2017-06-12

Applicant: Zhengbiao Ouyang

Inventor： Zhengbiao Ouyang ,  Guohua Wen

IPC: G02F1/295 ,  G02F1/313

CPC classification number: G02F1/3133 ,  G02B6/122 ,  G02B26/00 ,  G02F2201/06 ,  G02F2202/32 ,  G02F2203/07

Abstract: The present invention discloses a TEOS based on slab PhCs with a high DOP and large EXR, which comprises an upper slab PhC and a lower slab PhC; the upper slab PhC is a first square-lattice slab PhC with a TM bandgap and a complete bandgap, wherein the unit cell of the first square-lattice slab PhC includes a high-refractive-index rotating-square pillar, a single first flat dielectric pillar and a background dielectric, the first flat dielectric pillar includes a high-refractive-index dielectric pipe and a low-refractive-index dielectric, or a high-refractive-index flat film, or a low-refractive-index dielectric; the lower slab PhC is a second square lattice slab PhC with a TM bandgap and complete bandgap, wherein the unit cell of the second square-lattice slab PhC includes a high-refractive-index rotating-square pillar, a single second flat dielectric pillar and a background dielectric, and an normalized operating frequency of the TEOS is 0.453 to 0.458.