公开(公告)号：EP3479502A1

公开(公告)日：2019-05-08

申请号：EP17738020.1

申请日：2017-06-30

申请人： Luxtera, Inc.

发明人： DE DOBBELAERE, Peter ,  YOUNG, Greg

IPC分类号： H04B10/50 ,  G02F1/225 ,  G02F1/21 ,  H04B10/032

公开(公告)号：EP3400485A1

公开(公告)日：2018-11-14

申请号：EP16700398.7

申请日：2016-01-07

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： PULERI, Marzio ,  D'ERRICO, Antonio ,  GHELFI, Paolo ,  BOGONI, Antonella ,  SERAFINO, Giovanni ,  SORIANELLO, Vito ,  PORZI, Claudio

IPC分类号： G02F1/21 ,  G02F2/00 ,  G02F2/02

CPC分类号： G02F1/21 ,  G02F2/002 ,  G02F2/02 ,  G02F2203/13 ,  H04B2210/006

摘要： An opto-electronic oscillator (10) comprising: an optical source (12) to generate an optical carrier signal having a carrier wavelength; an optical phase modulator (14) to apply a sinusoidal phase modulation to the optical carrier signal to generate two first order sidebands having a π phase difference between them; an optical phase shifter (16) comprising an optical resonator configured to apply a substantially π phase-shift to one of the first order sidebands at a preselected wavelength within an optical spectrum of said first order sideband; and a photodetector (18) configured to perform optical heterodyne detection of the optical carrier signal with both: said one of the first order sidebands substantially π phase shifted by the optical resonator; and the other of the first order sidebands, to generate an electrical carrier signal (20), and wherein a first part of the electrical carrier signal (20a) is delivered to an electrical output (22) and a second part of the electrical carrier signal (20b) is delivered to the optical phase modulator as a drive signal.

公开(公告)号：EP3350892A1

公开(公告)日：2018-07-25

申请号：EP16763877.4

申请日：2016-09-14

申请人： Technische Universität München

发明人： MAYER, Benedikt ,  KOBLMÜLLER, Gregor ,  FINLEY, Jonathan ,  KLICPERA, Johannes ,  ABSTREITER, Gerhard

IPC分类号： H01S5/34 ,  H01S5/02 ,  G02B6/42 ,  H01S5/024 ,  H01S5/026 ,  H01S5/183 ,  H01S5/30 ,  H01S5/42 ,  H01L33/10 ,  H01S3/107 ,  H01S3/108 ,  H01S3/11 ,  H01S3/14 ,  H01S5/00 ,  H01S5/06 ,  H01S5/14 ,  G02F1/21

CPC分类号： H01S5/3428 ,  G02B6/42 ,  G02F1/225 ,  H01S3/107 ,  H01S3/108 ,  H01S3/1103 ,  H01S3/14 ,  H01S5/0085 ,  H01S5/0092 ,  H01S5/021 ,  H01S5/0218 ,  H01S5/0243 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/0608 ,  H01S5/142 ,  H01S5/18369 ,  H01S5/305 ,  H01S5/3054 ,  H01S5/341 ,  H01S5/42 ,  H01S5/423

摘要： A core-shell nanowire laser structure comprises a substrate (12) , an elongated support element (14) extending from the substrate, the support element having a first diameter, and an elongated body element (16) extending on and/or around the support element, the body element having a second diameter at least two times larger than the first diameter, wherein the body element is spaced apart from the substrate.

公开(公告)号：EP3278177A2

公开(公告)日：2018-02-07

申请号：EP16756933.4

申请日：2016-03-30

申请人： ETH Zürich

发明人： MA, Ping ,  LEUTHOLD, Jürg

IPC分类号： G02F1/035 ,  G02F1/21

CPC分类号： G02F1/035 ,  G02F1/0027 ,  G02F1/0508 ,  G02F1/225 ,  G02F2001/212 ,  G02F2001/213 ,  G02F2203/10

摘要： An electro-optic element includes a first waveguide, which is a plasmonic waveguide, including a first core having a ferroelectric material and a cladding having a first cladding portion. The first cladding portion includes, at a first interface with the ferroelectric material, a first cladding material. The electro-optic element includes a first and a second electrode for producing an electric field in the ferroelectric material when a voltage is applied between the first and second electrodes, for modulating a real part of a refractive index of the ferroelectric material. The element includes, in addition, a crystalline substrate on which the ferroelectric material is epitaxially grown with zero or one or more intermediate layers present between the substrate and the ferroelectric material. The element may have a second waveguide, which is a photonic waveguide, including for enabling evanescent coupling between the first and second waveguides.

公开(公告)号：EP3262376A2

公开(公告)日：2018-01-03

申请号：EP16800428.1

申请日：2016-02-24

申请人： The Charles Stark Draper Laboratory, Inc.

发明人： LAINE, Juha-Pekka J. ,  SPECTOR, Steven J.

IPC分类号： G01C21/02 ,  G02F1/21 ,  G02F1/01 ,  H01Q3/24

CPC分类号： G01S3/7867 ,  G02B6/12009 ,  G02B6/12011 ,  G02B6/124 ,  G02B6/125 ,  G02B6/2861 ,  G02B6/3544

摘要： A zero-optical-path-length-difference optical phased array built with essentially planar photonic devices determines a direction to an incoherent optical source, such as a star. The phased array can replace a 3-dimensional star tracker with a nearly 2-dimensional system that is smaller and lighter. The zero-optical-path-length-difference phased array can be optically connected to an interferometer. Driven by a light source, the zero-optical-path-length-difference phased array can be used as an optical projector.

公开(公告)号：EP3193210A3

公开(公告)日：2017-08-09

申请号：EP17150685.0

申请日：2017-01-09

申请人： Samsung Electronics Co., Ltd.

发明人： NAM, Sunghyun ,  YUN, Seokho ,  UNGNAPATANIN, Jesada

IPC分类号： G02F1/23 ,  G02F1/21 ,  G02F1/1335

摘要： Provided is a tunable electro-optic filter including a reflective structure including a first reflective layer including a pattern layer having a first meta-surface structure disposed on a first side of the liquid crystal layer and a second reflective layer including a second pattern layer having a second meta-surface structure disposed on a second side of the liquid crystal layer. Each of the first meta-surface structure and the second meta-surface structure includes multiple dielectric materials which are alternately stacked, and a thickness of each dielectric material gradually increases. Alternately, the tunable electro-optic filter may include a pattern layer having a meta-surface structure disposed on at least a side of the liquid crystal layer.

公开(公告)号：EP3193210A2

公开(公告)日：2017-07-19

申请号：EP17150685.0

申请日：2017-01-09

申请人： Samsung Electronics Co., Ltd

发明人： NAM, Sunghyun ,  YUN, Seokho ,  UNGNAPATANIN, Jesada

IPC分类号： G02F1/23 ,  G02F1/21 ,  G02F1/1335

摘要： Provided is a tunable electro-optic filter including a reflective structure including a first reflective layer including a pattern layer having a first meta-surface structure disposed on a first side of the liquid crystal layer and a second reflective layer including a second pattern layer having a second meta-surface structure disposed on a second side of the liquid crystal layer. Each of the first meta-surface structure and the second meta-surface structure includes multiple dielectric materials which are alternately stacked, and a thickness of each dielectric material gradually increases. Alternately, the tunable electro-optic filter may include a pattern layer having a meta-surface structure disposed on at least a side of the liquid crystal layer.

摘要翻译： 提供一种包括反射结构的可调谐电光滤波器，所述反射结构包括第一反射层和第二反射层，所述第一反射层包括具有设置在所述液晶层的第一侧上的第一间隙表面结构的图案层，所述第二反射层包括第二图案层， 第二元表面结构，设置在液晶层的第二侧上。 第一元表面结构和第二元表面结构中的每一个包括交替堆叠的多个电介质材料，并且每个电介质材料的厚度逐渐增加。 可选地，可调谐电光滤波器可以包括具有设置在液晶层的至少一侧上的超表面结构的图案层。

公开(公告)号：EP2845050B1

公开(公告)日：2017-03-29

申请号：EP13720511.8

申请日：2013-04-30

申请人： BAE Systems PLC

发明人： SMITH, Andrew James ,  NAWAZ, Mohammed ,  GILES, Simon Charles

IPC分类号： G02F1/01 ,  G02F1/21 ,  G02F1/225

CPC分类号： G02F1/0123 ,  G02F1/225 ,  G02F1/2255 ,  G02F2001/212

公开(公告)号：EP1596246B1

公开(公告)日：2016-12-14

申请号：EP05250334.9

申请日：2005-01-24

申请人： FUJITSU LIMITED

发明人： Akiyama, Suguru ,  Yamamoto, Tsuyoshi

IPC分类号： G02F1/21 ,  G02F1/035 ,  G02F1/017

CPC分类号： G02F1/2255 ,  B82Y20/00 ,  G02F1/0121 ,  G02F1/01708 ,  G02F1/225 ,  G02F1/2257 ,  G02F2201/122 ,  G02F2203/05 ,  H04B10/505 ,  H04B10/50575 ,  H04B10/58

公开(公告)号：EP3092526A2

公开(公告)日：2016-11-16

申请号：EP15700158.7

申请日：2015-01-09

申请人： King's College London

发明人： WURTZ, Gregory ,  ZAYATS, Anatoly ,  MCPOLIN, Cillian ,  BARBOSA NEIRA, Andres David ,  GINZBURG, Pavel

IPC分类号： G02F1/21 ,  G02F1/01 ,  G02F1/225

CPC分类号： G02F1/225 ,  G02B6/1226 ,  G02B26/001 ,  G02B2006/12145 ,  G02F1/0126 ,  G02F1/19 ,  G02F1/21 ,  G02F2001/213 ,  G02F2202/30 ,  G02F2203/10 ,  G02F2203/15

摘要： A plasmonic switching device and method of providing a plasmonic switching device. An example device includes a resonant cavity and an electromagnetic radiation feed arranged to couple electromagnetic radiation into the resonant cavity and at least one plasmonic mode. The resonant cavity is arranged to be switchable between: a first state in which the resonant cavity has an operational characteristic selected to allow resonance of the electromagnetic radiation at a frequency of the at least one plasmonic mode; and a second state in which the operational characteristic of the resonant cavity is adjusted to inhibit resonance of the electromagnetic radiation at a frequency of the at least one plasmonic mode.

摘要翻译： 等离子体切换装置和提供等离子体切换装置的方法。 该装置包括：在表面之间形成的谐振腔，所述表面之一包括可操作以支持至少一个等离子体激元模式的等离子体激元系统; 布置成将电磁辐射耦合到所述谐振腔中的电磁辐射馈送以及所述至少一个等离子体激元模式。 谐振腔被布置成可在以下状态之间切换：第一状态，其中谐振腔具有被选择为允许电磁辐射在至少一个等离子体激元模式的频率下谐振的操作特性，使得激励至少一个等离子体激元模式 在等离子体激元系统中被抑制; 以及第二状态，其中调节谐振腔的操作特性以抑制在所述至少一个等离子体激元模式的频率下电磁辐射的谐振，使得所述至少一个等离子体激元模式在所述等离子体激元系统中被激发。 一个方面提供了一种电磁波导传输调制设备和提供这种设备的方法。 该装置包括：至少一个可耦合到波导的双曲线超材料元件。 双曲线型超材料元件被布置为在以下之间可调节：第一模式，其中超材料元件被配置为支持与由波导支持的传播模式的传播向量匹配的共振模式，使得模式沿着波导的传播受到影响 ; 以及第二模式，其中超材料元件被配置成禁止支持与传播向量匹配的共振模式，从而阻止传播向量沿着波导的传播的中断。 一个方面提供了一种电磁波导传输调制设备，一种调制信号的方法以及一种提供电磁波导传输调制设备的方法。 该电磁波导传输调制装置包括：一对在波导内线内布置的超材料元件。 超材料元件被布置成在第一状态和第二状态之间可调节。 在第一种状态下，超材料元件作为ENZ超材料元件并在波导内形成具有传输功能的谐振腔，该传输功能允许沿着波导传播的选定频率的电磁辐射基本上不受阻碍地通过谐振腔。 在第二状态下，防止至少一个所述超材料元件作为ENZ超材料的操作，并且调制波导的传输功能。 （图2a）