公开(公告)号：US09851615B2

公开(公告)日：2017-12-26

申请号：US15483553

申请日：2017-04-10

Applicant: Lumentum Operations LLC

Inventor： Charles M. Jewart ,  Yannick Lize ,  Karl Kissa

IPC: G02B6/125 ,  G02F1/225 ,  G02B6/28 ,  G02F1/21

CPC classification number: G02F1/2257 ,  G02B6/00 ,  G02B6/125 ,  G02B6/28 ,  G02B6/2813 ,  G02F1/225 ,  G02F2001/212 ,  G02F2001/217 ,  G02F2201/58

Abstract: An optical modulator is disclosed, in which a MMI couplers are used for input signal splitting for branching into individual Mach-Zehnder interferometers, as well as for branching and combining from individual Mach-Zehnder waveguides. MMI couplers, splitters, and combiners may be cascaded and combined with single-mode Y-splitters and combiners to provide modulators of various types, including dual polarization, quadrature phase Mach-Zehnder interferometer base optical modulators.

公开(公告)号：US20170276975A1

公开(公告)日：2017-09-28

申请号：US15468118

申请日：2017-03-24

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： KEI KATOU ,  NORIKAZU MIYAZAKI ,  RYO SHIMIZU

IPC: G02F1/03 ,  G02F1/225

CPC classification number: G02F1/0327 ,  G02F1/0322 ,  G02F1/225 ,  G02F2001/212 ,  G02F2201/58

Abstract: In an optical modulator, a light-receiving element (3a) that receives a light wave modulated in an optical modulation section (Ma) and a light-receiving element (3b) that receives a light wave modulated in an optical modulation section (Mb) are provided in a substrate. In addition, at least a part of an electrical line (4a) that guides a light-receiving signal output from the light-receiving element (3a) to an outer side of the substrate, and at least apart of an electrical line (4b) that guides a light-receiving signal form the light-receiving element (3b) to an outer side of the substrate are formed in the substrate. In addition, crosstalk suppression means (5), which suppress crosstalk between the electrical line (4a) and the electrical line (4b), is provided between the part of the electrical line (4a) and the part of the electrical line (4b) which are formed in the substrate.

公开(公告)号：US20170276972A1

公开(公告)日：2017-09-28

申请号：US15468115

申请日：2017-03-24

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： KEI KATOU ,  NORIKAZU MIYAZAKI ,  RYO SHIMIZU

IPC: G02F1/03 ,  G02F1/035

CPC classification number: G02F1/0327 ,  G02F1/035 ,  G02F2201/07 ,  G02F2201/58

Abstract: An optical modulator includes a substrate having an electro-optic effect, an optical waveguide that is formed in the substrate, and a modulation electrode (not illustrated) for modulating a light wave that propagates through the optical waveguide. In the optical modulator, a light-receiving element is disposed on the substrate, and the light-receiving element includes a light-receiving section that receives a light wave that propagates through the optical waveguide, and the light-receiving section is located on the downstream side of a center of the light-receiving element in a light wave propagating direction.

公开(公告)号：US20170227766A1

公开(公告)日：2017-08-10

申请号：US15497908

申请日：2017-04-26

Applicant: ILLINOIS TOOL WORKS INC.

Inventor： Nishank Patel ,  Praveen Dandu

IPC: G02B27/01 ,  G01R29/08 ,  A61F9/06

CPC classification number: G02B27/017 ,  A61F9/06 ,  A61F9/061 ,  A61F9/067 ,  B23K9/322 ,  G01R29/08 ,  G02B2027/0138 ,  G02B2027/014 ,  G02F2201/58 ,  G06T5/009 ,  G06T19/006 ,  G06T2207/10048 ,  G06T2207/20208 ,  G09G5/006 ,  G09G5/10 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2360/14 ,  G09G2360/141 ,  G09G2360/144

Abstract: An example head-worn device includes a camera, a display device, weld detection circuitry, and pixel data processing circuitry. The camera generates first pixel data from a field of view of the head-worn device. The display device displays second pixel data to a wearer of the head-worn device based on the first pixel data captured by the camera. The weld detection circuitry determines whether a welding arc is present and generates a control signal indicating a result of the determination. The pixel data processing circuitry processes the first pixel data captured by the camera to generate the second pixel data for display on the display device, where a mode of operation of said pixel data processing circuitry is selected from a plurality of modes based on said control signal.

公开(公告)号：US20170212366A1

公开(公告)日：2017-07-27

申请号：US15410034

申请日：2017-01-19

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Eiichi BANNO ,  Takatoshi KATO ,  Eiji TSUMURA

IPC: G02F1/01 ,  G02F1/225 ,  H04B10/40 ,  H01S3/16 ,  H01S3/13 ,  H01S3/00 ,  G02B26/00 ,  H01S3/067

CPC classification number: G02F1/0123 ,  G02B26/001 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/58 ,  H01S3/0078 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1608 ,  H01S2301/02 ,  H04B10/40 ,  H04B10/506 ,  H04B10/564 ,  H04B10/572

Abstract: An optical transceiver that installs an optical modulator with the Mach-Zehnder type and made of primarily semiconductor materials, and an Erbium Doped Fiber Amplifier (fiber amplifier) is disclosed. The fiber amplifier and the MZ modulator, in addition to a wavelength tunable laser diode, an intelligent coherent receiver, and a polarization maintaining splitter, are installed within a compact case following the standard of CFP2. The fiber amplifier provides a wavelength tunable filter that passes light amplified by the fiber amplifier but eliminates amplified stimulated emission in regions out of the wavelength band of the light.

公开(公告)号：US20170139236A1

公开(公告)日：2017-05-18

申请号：US14939086

申请日：2015-11-12

Applicant: RANOVUS INC.

Inventor： Bin CAO ,  Douglas J. S. BECKETT ,  Dylan LOGAN ,  Juergen HAUENSCHILD

IPC: G02F1/01 ,  G02B6/293

CPC classification number: G02F1/011 ,  G02B6/29338 ,  G02B6/29395 ,  G02F1/0121 ,  G02F1/3132 ,  G02F2201/58 ,  G02F2203/15 ,  H04B10/5057 ,  H04B10/572

Abstract: An apparatus, system and method of resonance wavelength alignment for ring modulators is provided which includes: an optical input bus configured to convey a given optical input signal having a given optical frequency; an optical ring modulator configured to: receive and modulate the input signal from the input bus; an optical output bus configured to convey a modulated optical signal from the ring; a first optical tap on the input bus configured to sample the input signal; a second optical tap configured to sample the modulated signal; a controller in communication with the ring, the first tap and the second tap, the controller configured to: determine a current insertion loss of the ring from respective signals received from both the first tap and the second tap; and, control the ring in a feedback loop with the current insertion loss until the current insertion loss comprises a given insertion loss.

公开(公告)号：US20170123287A1

公开(公告)日：2017-05-04

申请号：US15300426

申请日：2015-03-27

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Tokutaka HARA ,  Norikazu MIYAZAKI

IPC: G02F1/225

CPC classification number: G02F1/2255 ,  G02B6/29352 ,  G02B6/4215 ,  G02F2001/212 ,  G02F2201/58 ,  H01L31/0232

Abstract: An object is to provide an optical modulator in which a light receiving element is disposed on a substrate configuring the optical modulator and which is capable of suppressing a decrease in the frequency bandwidth of the light receiving element even in a case in which two radiated lights from a combining part in a Mach-Zehnder type optical waveguide are received and monitored at the same time. The optical modulator includes a substrate 1, an optical waveguide including a Mach-Zehnder type optical waveguide formed in the substrate, and a modulation electrode (not illustrated) for modulating light waves that propagate through the optical waveguide, alight receiving element 5 is disposed to bridge over an output waveguide 24 configuring the Mach-Zehnder type optical waveguide so as to receive two radiated lights being radiated from a combining part in the Mach-Zehnder type optical waveguide, and, in the light receiving element, two or more light receiving areas (51 and 52) are formed apart from each other on a substrate of light receiving element 55.

公开(公告)号：US20170123236A1

公开(公告)日：2017-05-04

申请号：US15337242

申请日：2016-10-28

Applicant: AIRBUS OPERATIONS LIMITED

Inventor： Kayvon BARAD ,  Chris Wood ,  Alessio Cipullo

IPC: G02F1/01 ,  H04B10/25 ,  H04J14/02 ,  G02B6/02 ,  G02F1/125

CPC classification number: G02F1/0134 ,  G02B6/02076 ,  G02B6/0208 ,  G02B6/02095 ,  G02B6/022 ,  G02B6/02204 ,  G02B6/29383 ,  G02B6/29395 ,  G02B6/4214 ,  G02B6/4215 ,  G02B6/4287 ,  G02F1/0147 ,  G02F1/125 ,  G02F2201/58 ,  H04B10/2504 ,  H04J14/02

Abstract: A communication apparatus includes an optical fiber along which radiation can be transmitted; an optical fiber grating formed within the optical fiber, the optical fiber grating having a structure, and configured to reflect radiation at a particular wavelength; and an instrument coupled to the grating and configured to controllably modify the structure of the grating, thereby changing the wavelength at which the grating reflects radiation. A communication system including the communication apparatus is also described, along with a method of communicating a signal.

公开(公告)号：US09638940B2

公开(公告)日：2017-05-02

申请号：US15163178

申请日：2016-05-24

Applicant: STMICROELECTRONICS SA

Inventor： Jean-Robert Manouvrier

IPC: G02F1/01 ,  G01J9/00 ,  G01J9/02 ,  G02F1/025 ,  H04B10/50 ,  G02F1/21 ,  G02F1/225

CPC classification number: G02F1/0123 ,  G01J9/00 ,  G01J9/02 ,  G02F1/025 ,  G02F1/218 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/58 ,  G02F2203/50 ,  H04B10/5053 ,  H04B10/50575

Abstract: An optical modulator uses an optoelectronic phase comparator configured to provide, in the form of an electrical signal, a measure of a phase difference between two optical waves. The phase comparator includes an optical directional coupler having two coupled channels respectively defining two optical inputs for receiving the two optical waves to be compared. Two photodiodes are configured to respectively receive the optical output powers of the two channels of the directional coupler. An electrical circuit is configured to supply, as a measure of the optical phase shift, an electrical signal proportional to the difference between the electrical signals produced by the two photodiodes.

公开(公告)号：US09625784B2

公开(公告)日：2017-04-18

申请号：US13388983

申请日：2011-06-28

Applicant: Jae Hyun Joo

Inventor： Jae Hyun Joo

IPC: G09G3/34 ,  G02F1/167 ,  G02F1/17 ,  G09G3/20 ,  G02F1/23 ,  G02B1/00 ,  G02B26/02 ,  G02B26/00 ,  B82Y20/00 ,  G02F1/21

CPC classification number: G02F1/167 ,  B82Y20/00 ,  G02B1/005 ,  G02B26/007 ,  G02B26/02 ,  G02F1/17 ,  G02F1/21 ,  G02F1/23 ,  G02F2001/1678 ,  G02F2201/44 ,  G02F2201/58 ,  G02F2202/32 ,  G02F2203/055 ,  G02F2203/34 ,  G09G3/2003 ,  G09G3/3446 ,  G09G2310/062

Abstract: The present invention provides a method of changing color or transmittance of light on a surface part of an object. The surface part of the object includes a solvent and a plurality of particles dispersed in the solvent. When electric field is applied to the solvent and the plurality of particles, the transmittance of color or light on the surface part of the object is changed due to the change of the inter-particle distances or the positions of the particles, according to the magnitude, direction, application time or application frequency of electric field, wherein the magnitude, direction, application time or application frequency of electric field are changed by associating the input signal by the user of the object or the signal acquired by the object or the signal acquired by the sensing unit provided to the object.