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

Applicant: Telefonaktiebolaget LM Ericsson (publ)

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

IPC: G02F1/21 ,  G02F2/00 ,  G02F2/02

CPC classification number: G02F1/21 ,  G02F2/002 ,  G02F2/02 ,  G02F2203/13 ,  H04B2210/006

Abstract: 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：EP3306386A1

公开(公告)日：2018-04-11

申请号：EP16802791.0

申请日：2016-05-27

Applicant: Nippon Telegraph And Telephone Corporation

Inventor： KAMEI, Shin ,  JIZODO, Makoto ,  FUKUDA, Hiroshi ,  KIKUCHI, Kiyofumi ,  TSUZUKI, Ken

IPC: G02F2/00 ,  G02B6/00 ,  G02B6/125 ,  G02B6/126

CPC classification number: G02B6/125 ,  G02B6/00 ,  G02B6/126 ,  G02B6/2813 ,  G02F2/00 ,  G02F2/002 ,  H04J14/06

Abstract: A coherent optical mixer circuit is provided that can measure a phase error without requiring a step of cutting away a delay circuit. Odd-numbered or even-numbered two of four inputs of an 4-input-and-4-output multimode interference circuit are connected to an input mechanism. The four outputs of the multimode interference circuit are all connected to an output mechanism to the exterior. Other two inputs of the multimode interference circuit are connected to two monitor waveguides. One of the monitor waveguide is longer than the other to configure a light delay circuit. The monitor waveguides constituting the light delay circuit are connected to the respective outputs of a 2-branched light splitter. The 2-branched light splitter has an input connected to a monitor light input mechanism from the exterior via a monitor input waveguide.

Abstract translation: 提供了一种相干光混频器电路，其可以测量相位误差而不需要切除延迟电路的步骤。 4输入和4输出多模干涉电路的四个输入中的奇数或偶数两个连接到输入机构。 多模干涉电路的四个输出都连接到输出机构的外部。 多模干涉电路的其他两个输入连接到两个监测波导。 监视波导中的一个比另一个长，以配置光延迟电路。 构成光延迟电路的监视器波导连接到2分支分光器的相应输出。 双分支分光器的输入通过监视器输入波导从外部连接到监视器光输入机构。

公开(公告)号：EP2304412B1

公开(公告)日：2017-05-03

申请号：EP09786078

申请日：2009-07-29

Applicant: MILANO POLITECNICO

Inventor： CERULLO GIULIO NICOLA FELICE ,  MARANGONI MARCO ANDREA ARRIGO ,  BARONIO FABIO ,  CONFORTI MATTEO ,  DE ANGELIS COSTANTINO

IPC: G01N21/65 ,  G01J3/44 ,  G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  G02F1/377 ,  G02F2/00

CPC classification number: G01N21/65 ,  G01J3/44 ,  G01N2021/653 ,  G01N2021/655 ,  G01N2021/656 ,  G02F1/3526 ,  G02F1/3553 ,  G02F1/3775 ,  G02F2/002 ,  G02F2001/3507 ,  G02F2201/14 ,  G02F2201/15 ,  G02F2201/58 ,  G02F2202/07 ,  G02F2202/20

公开(公告)号：EP2270585B1

公开(公告)日：2014-12-31

申请号：EP09734351.1

申请日：2009-04-21

Applicant: Riken

Inventor： MAKI, Ken-ichiro ,  OTANI, Chiko

IPC: G02F2/02

CPC classification number: G02F2/002 ,  G02F1/3534 ,  G02F2203/13

公开(公告)号：EP2702443A4

公开(公告)日：2014-10-22

申请号：EP12803117

申请日：2012-06-25

Applicant: OEWAVES INC

Inventor： MATSKO ANDREY B ,  MALEKI LUTE

IPC: G02F1/03 ,  H01S3/098

CPC classification number: G02F1/0123 ,  G02F1/395 ,  G02F2/002 ,  H03B17/00 ,  Y10S359/90

Abstract: Techniques and devices based on optical resonators made of nonlinear optical materials and nonlinear wave mixing to generate RF or microwave oscillations using an active opto-electronic loop.

Abstract translation: 技术和基于由非线性光学材料和非线性波混频使用有源光电回路，以产生RF或微波振荡的光学谐振腔的设备。

公开(公告)号：EP1332594B1

公开(公告)日：2010-02-24

申请号：EP01987989.9

申请日：2001-10-16

Applicant: PMDTechnologies GmbH

Inventor： Swcharte, Rudolf

IPC: H04L27/00

CPC classification number: G02F2/002 ,  G01S7/4914 ,  G01S17/89 ,  H03D9/0608

公开(公告)号：EP2040117A4

公开(公告)日：2009-09-30

申请号：EP07768271

申请日：2007-07-06

Applicant: JAPAN SCIENCE & TECH AGENCY ,  FURUKAWA ELECTRIC CO LTD

Inventor： TAKASAKA SHIGEHIRO ,  OZEKI YASUYUKI ,  SAKANO MISAO

IPC: G02F2/00 ,  H04L7/00

CPC classification number: G02F2/002 ,  G02F2203/56 ,  H04L7/0075

公开(公告)号：EP0260594B1

公开(公告)日：1994-02-09

申请号：EP87113201.5

申请日：1987-09-09

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Heidrich, Helmut, Dr. ,  Hoffmann, Detlef, Dr. ,  Nolting, Hans-Peter, Dr.

IPC: G02F2/00 ,  G02F1/03 ,  H04B10/00

CPC classification number: H04B10/61 ,  G02F1/0136 ,  G02F2/002 ,  H04B10/615 ,  H04B10/63 ,  H04B10/64

公开(公告)号：EP0183502B1

公开(公告)日：1993-03-03

申请号：EP85308531.4

申请日：1985-11-25

Applicant: ROKE MANOR RESEARCH LIMITED

Inventor： Wade, Christopher Anthony

IPC: G02F2/02 ,  G02F1/11 ,  G02F1/21 ,  H01S3/00 ,  G01D5/26

CPC classification number: H01S3/0057 ,  G02F1/21 ,  G02F1/2252 ,  G02F2/002 ,  G02F2001/212 ,  G02F2203/26

公开(公告)号：EP0514787A3

公开(公告)日：1993-01-20

申请号：EP92108244.2

申请日：1992-05-15

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Das, Chandan, Dipl.-Ing.

IPC: G02F1/01 ,  G02F2/00

CPC classification number: G02F1/0136 ,  G02F2/002 ,  G02F2201/02

Abstract: Insbesondere für optische Überlagerungsempfänger ist es notwendig, die Polarisation des lokal erzeugten Lichtes der des Empfangslichtes nachzuregeln. Die Polarisationsregelung erfolgt dabei durch Verstellung der Verzögerung doppelbrechender Elemente, die nach einer Anzahl gleichgerichteter Verstellschritte an eine Verstellgrenze gelangen können und zurückgestellt werden müssen. Dabei ergibt sich das Problem, daß schnelle Änderungen der Polarisation des Eingangslichtes auch während Rückstellphase berücksichtigt werden müssen, außerdem sollten auch nichtideale doppelbrechende Elemente verwendet werden. Erfindungsgemäß werden vier doppelbrechende Elemente verwendet, von denen die im Lichtweg ersten beiden Elemente der normalen Regelung und die beiden folgenden Elemente der Regelung während der Rückstellprozedur dienen.