公开(公告)号：US09791761B1

公开(公告)日：2017-10-17

申请号：US15429793

申请日：2017-02-10

Applicant: INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES

Inventor： Ming Li ,  Jian Tang ,  Yu Liu ,  Haiqing Yuan ,  Ninghua Zhu

IPC: G02F1/035 ,  G02F1/225 ,  G02F1/025 ,  G02F1/01 ,  G02F1/21

CPC classification number: G02F1/2257 ,  G02F1/025 ,  G02F2001/212 ,  G02F2201/06 ,  G02F2201/18 ,  G02F2201/302 ,  G02F2203/07

Abstract: An integral chip is disclosed by embodiments of the present disclosure, including: two mono-mode vertical coupling gratings, two modulation modules, one 2×1 multi-mode interference coupler, and one dual-mode vertical coupling grating. The integral chip is capable of operating in dual wavelengths and dual polarization states by combination of polarization multiplexing and wavelength division multiplexing so as to realize modulation of complex formats and to enhance data modulation rate.

公开(公告)号：US20170293203A1

公开(公告)日：2017-10-12

申请号：US15626261

申请日：2017-06-19

Applicant: Zhengbiao Ouyang

Inventor： Zhengbiao Ouyang ,  Quanqiang Yu

IPC: G02F3/00

CPC classification number: G02F3/00 ,  G02B6/122 ,  G02F2201/06 ,  G02F2202/32

Abstract: A PhC all-optical multistep-delay OR-transformation logic gate includes an optical switch unit having a first intermediate-signal output port, a PhC structure unit having a first intermediate-signal input port connected with the first intermediate-signal output port, a reference-light source connected with the reference-light input port of the optical switch unit, a wave absorbing load, a flip-flop unit, and a memory or delayer having an input port connected with a first logic signal and an output port connected with the delay-signal input port of an optical switch unit whose logic-signal input port is connected with a second logic signal; a second intermediate-signal input port of the PhC structure unit is connected with the second intermediate-signal output port of said optical switch unit; a third intermediate-signal output port of the optical switch unit is connected with the wave absorbing load; a clock control-signal is input through the input port of a two-branch waveguide.

公开(公告)号：US20170285442A1

公开(公告)日：2017-10-05

申请号：US15626209

申请日：2017-06-19

Applicant: Zhengbiao Ouyang

Inventor： Zhengbiao Ouyang ,  Quanqiang Yu

IPC: G02F3/00 ,  G02F1/35

CPC classification number: G02F3/00 ,  G02B6/1225 ,  G02F1/3501 ,  G02F2201/06 ,  G02F2202/32

Abstract: An optical clock generator includes a nonlinear cavity unit, a cross-waveguide logic gate unit and a delayer unit; and is of a six-port photonic crystal structure including two reference-light signal-input ports, a feedback-signal-input port, a system-signal and feedback-signal output port and two idle ports; the output port of the cross-waveguide logic gate unit is connected with the input port of the nonlinear cavity unit whose system-signal output port is connected with the input port of said delayer unit whose output port is connected with the input port of the cross-waveguide logic gate unit, the system-signal output port is connected with a two-branch waveguide one of which is used as the system-signal output port, and another is used as the feedback-signal output port and connected to an input port of said delayer unit, the delayer unit performs time delay on an input signal and outputs the signal to the feedback-signal-input port.

公开(公告)号：US09778416B2

公开(公告)日：2017-10-03

申请号：US14467531

申请日：2014-08-25

Applicant: MICRON TECHNOLOGY, INC. ,  Massachusetts Institute of Technology

Inventor： Roy Meade ,  Jason Orcutt ,  Milos Popovic ,  Jeffrey Shainline ,  Zvi Sternberg ,  Vladimir Stojanovic ,  Ofer Tehar-Zahav

IPC: G02B6/12 ,  G02B6/122 ,  G02F1/025

CPC classification number: G02B6/1228 ,  G02B6/12004 ,  G02B2006/12061 ,  G02B2006/12121 ,  G02B2006/12123 ,  G02B2006/12142 ,  G02F1/025 ,  G02F2201/06 ,  G02F2202/104

Abstract: An integrated structure and method of formation provide a lower level waveguide having a core of a first material and a higher level waveguide having a core of a second material and a coupling region for coupling the two waveguides together. The different core materials provided different coupled waveguides having different light loss characteristics.

公开(公告)号：US20170277015A1

公开(公告)日：2017-09-28

申请号：US15620818

申请日：2017-06-12

Applicant: ZHENGBIAO OUYANG

Inventor： ZHENGBIAO OUYANG ,  GUOHUA WEN

IPC: G02F1/313

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

Abstract: The present invention discloses a TMOS with a high extinction ratio based on slab PhCs which comprises an upper slab PhC and a lower slab PhC connected as a whole; the upper slab PhC is called as a first square-lattice slab PhC, wherein the unit cell of the first square-lattice slab PhC includes a high-refractive-index rotating-square pillar, three first flat dielectric pillars and a background dielectric, and the first flat dielectric pillars includes a high-refractive-index dielectric pipe and a low-refractive-index dielectric, or of 1 to 3 high-refractive-index flat films, or of a low-refractive-index dielectric; the lower slab PhC is a second square-lattice slab PhC with a complete bandgap, the unit cell of the second square-lattice slab PhC includes a high-refractive-index rotating-square pillar, three second flat dielectric pillars and a background dielectric is a low-refractive-index dielectric and an normalized operating frequency of the TMOS is 0.4057 to 0.406.

公开(公告)号：US20170269454A1

公开(公告)日：2017-09-21

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 ,  G02B2006/12142 ,  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：US20170192264A1

公开(公告)日：2017-07-06

申请号：US15360752

申请日：2016-11-23

Applicant: Michael H. Anderson ,  Scott R. Davis ,  Scott D. Rommel

Inventor： Michael H. Anderson ,  Scott R. Davis ,  Scott D. Rommel

IPC: G02F1/13 ,  G02F1/295

CPC classification number: G02F1/295 ,  G02F1/1326 ,  G02F1/29 ,  G02F1/2955 ,  G02F2001/291 ,  G02F2201/06 ,  G02F2201/12 ,  G02F2201/122

Abstract: A substantially planar waveguide for dynamically controlling the out-of-plane angle at which a light beam exits the waveguide. Generally, liquid crystal materials may be disposed within a waveguide in a cladding proximate or adjacent to a core layer of the waveguide. In one example, the waveguide may contain one or more taper regions such that the light beam exits the waveguide and propagates out-of-the-plane of the waveguide into an out-coupling medium at a propagation angle. In one example, the waveguide may contain one or more electrodes onto which one or more voltages may be applied. The magnitude of the propagation angle may be electronically controlled by altered by controlling or altering the magnitude of the one or more applied voltages.

公开(公告)号：US20170123288A1

公开(公告)日：2017-05-04

申请号：US15313133

申请日：2015-05-22

Applicant: Universidade Federal do Para - UFPA

Inventor： Victor DMITRIEV ,  Gianni Masaki Tanaka PORTELA ,  Raphael Rafsandjani BATISTA

IPC: G02F1/313

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

Abstract: The present invention is based on a two-dimensional photonic crystal where are inserted defects that originate two waveguides and one resonant cavity. An electromagnetic signal that crosses the device is confined in the interior of the defects, due to the photonic band gap associated with the periodic structure that surrounds it. Its main function is the control of the flux of an electromagnetic signal over a communication channel, blocking (state off) or allowing (state on) the passage of the signal. It also promotes the change in the propagation direction of an electromagnetic signal by an angle of 120 degrees, providing greater flexibility in the design of integrated optical systems. The working principle of the device is based on the excitation of dipole modes in its resonant cavity, accordingly to the application of an external DC magnetic field on the magneto-optical material that constitutes it. In states on and off the magneto-optical material is magnetized and nonmagnetized, respectively.

公开(公告)号：US20170075190A1

公开(公告)日：2017-03-16

申请号：US15260446

申请日：2016-09-09

Applicant: The University of Bristol

Inventor： TERENCE RUDOLPH ,  MARK THOMPSON ,  JONATHAN MATTHEWS ,  DAMIEN BONNEAU

IPC: G02F1/35 ,  G02F1/365 ,  G02F1/355 ,  G01J1/42

CPC classification number: G02F1/3526 ,  G01J1/42 ,  G02F1/3536 ,  G02F1/3553 ,  G02F1/3558 ,  G02F1/365 ,  G02F2201/06 ,  G02F2203/15

Abstract: There is presented an optical apparatus comprising first and second photon pair sources configured to convert at least one pump light photon into a first and second correlated signal and idler photon pairs. In one example, the apparatus is configured to use one of the signal and idler photons from the first correlated photon pair for controlling the conversion of the pump light photon in the second photon pair source. The apparatus may configured such that, at least one of the signal and idler photons from the first correlated photon pair is output from the first photon pair source onto an optical path wherein at least one of the signal and idler photons from the second correlated photon pair is output from the second photon pair source onto the optical path. A method is also provided for outputting one or more photons using the optical apparatus.

Abstract translation: 提出了一种光学装置，其包括被配置为将至少一个泵浦光子转换成第一和第二相关信号和惰性光子对的第一和第二光子对源。 在一个示例中，该装置被配置为使用来自第一相关光子对的信号和惰性光子中的一个来控制第二光子对源中的泵浦光子的转换。 该装置可以被配置为使得来自第一相关光子对的信号和空载光子中的至少一个从第一光子对源输出到光路上，其中来自第二相关光子对的信号和空载光子中的至少一个 从第二光子对源输出到光路上。 还提供了一种使用该光学装置输出一个或多个光子的方法。

公开(公告)号：US09229168B2

公开(公告)日：2016-01-05

申请号：US14198261

申请日：2014-03-05

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Akira Furuya ,  Takamitsu Kitamura ,  Hideki Yagi ,  Naoya Kono

IPC: G02B6/12 ,  B82Y20/00 ,  G02B6/30 ,  G02B6/122 ,  G02F1/225 ,  G02B6/136 ,  G02F1/017 ,  G02F1/21

CPC classification number: G02B6/305 ,  G02B6/1228 ,  G02B6/136 ,  G02B2006/12078 ,  G02F1/01708 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2001/217 ,  G02F2201/04 ,  G02F2201/06 ,  G02F2201/063 ,  G02F2201/12 ,  G02F2202/101 ,  G02F2202/102 ,  G02F2202/108

Abstract: A semiconductor optical waveguide device includes a substrate having a first area and a second area, and first, second, and semiconductor mesas on the substrate. The first semiconductor mesa includes a cladding layer and a first mesa portion on the second area, the first mesa portion including first and second portions. The second semiconductor mesa includes an intermediate layer, a first core layer, and first and second mesa portions on the first and second areas, respectively. The third semiconductor mesa includes a second core layer, and first and second mesa portions having a greater width than that of the second semiconductor mesa. The first portion of the first semiconductor mesa has a substantially same width as the second mesa portion of the second semiconductor mesa. The first core layer is optically coupled to the second core layer through the intermediate layer disposed between the first and second core layers.

Abstract translation: 半导体光波导器件包括具有第一区域和第二区域的衬底以及衬底上的第一，第二和第二半导体台面。 第一半导体台面包括在第二区域上的包覆层和第一台面部分，第一台面部分包括第一和第二部分。 第二半导体台面分别包括第一和第二区域上的中间层，第一芯层层以及第一和第二台面部分。 第三半导体台面包括第二芯层，第一和第二台面部分的宽度大于第二半导体台面的宽度。 第一半导体台面的第一部分具有与第二半导体台面的第二台面部分基本相同的宽度。 第一芯层通过设置在第一和第二芯层之间的中间层光耦合到第二芯层。