公开(公告)号：EP2309323A2

公开(公告)日：2011-04-13

申请号：EP10187187.9

申请日：2008-03-13

Applicant: National Institute of Information and Communications Technology

Inventor： Kawanishi, Tetsuya ,  Nakajima, Shinya ,  Shinada, Satoshi

IPC: G02F1/225 ,  G01B9/02 ,  G01M11/00

CPC classification number: G01B9/02 ,  G01M11/00 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/18 ,  G02F2203/25 ,  G02F2203/69

Abstract: PROBLEMS
To provide a method for evaluating characteristics of MZ interferometers in an optical modulator having a plurality of MZ interferometers.
MEANS FOR SOLVING PROBLEMS
When an optical modulator (1) includes a plurality of MZ interferometers (2,3), the output light contains a signal component at the modulation frequency and sideband components at higher orders. It is impossible to accurately evaluate the characteristic of the MZ interferometers on the basis of the component at the modulation frequency (zero-order). The present invention does not use the zero-order component normally having the highest intensity. That is, the characteristic of the MZ interferometers are evaluated by using a side band intensity of the component other than the zero-order component.

Abstract translation: 问题的方案为了用于具有MZ干涉仪的多个光学调制器评价MZ干涉仪的特性提供一种方法。 解决问题的手段当向光调制器（1）包括：干涉仪MZ的多个（2,3）时，输出光包含在在更高阶调制频率和边带分量的信号分量。 这是不可能精确地设定评估部件中的调制频率（零级）的基础上，MZ干涉仪的特性。 本发明不使用的零阶分量，通常具有最高的强度。 即，MZ干涉仪的特征是通过使用比0次成分以外的成分的边带强度进行评估。

公开(公告)号：EP2261628A4

公开(公告)日：2011-04-13

申请号：EP08720461

申请日：2008-03-13

Applicant: NAT INST INF & COMM TECH

Inventor： KAWANISHI TETSUYA ,  NAKAJIMA SHINYA ,  SHINADA SATOSHI

IPC: G01M11/00

CPC classification number: G01B9/02 ,  G01M11/00 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/18 ,  G02F2203/25 ,  G02F2203/69

Abstract: PROBLEMS To provide a method for evaluating characteristics of MZ interferometers in an optical modulator having a plurality of MZ interferometers. MEANS FOR SOLVING PROBLEMS When an optical modulator includes a plurality of MZ interferometers, the 0-degree component contains a signal derived from an MZ interferometer other than the MZ interferometers for evaluating the characteristic. For this, it is impossible to accurately evaluate the characteristic of the MZ interferometers. The present invention does not use the 0-degree component normally having the highest intensity. That is, the characteristic of the MZ interferometers are evaluated by using a side band intensity of the component other than the 0-degree component.

公开(公告)号：EP2208263A1

公开(公告)日：2010-07-21

申请号：EP08844349.4

申请日：2008-10-23

Applicant: Corning Incorporated

Inventor： GOLLIER, Jacques ,  HARRIS, James M

IPC: H01S3/08

CPC classification number: G02F1/3532 ,  G02F2201/18 ,  G02F2203/58 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/0092

Abstract: According to one embodiment of the present invention, a frequency-converted laser source is provided wherein the wavelength conversion device comprises a plurality of waveguide components comprising respective input faces positioned in an effective focal field of the laser source. Individual ones of the waveguide components contribute different elements to a set of distinct wavelength conversion properties, defining a set of distinct wavelength conversion properties attributable to the waveguide components. The set of distinct wavelength conversion properties comprises properties representing phase matching wavelengths of the waveguide components, spectral widths of the waveguide components, conversion efficiency of the waveguide components, or combinations thereof. Additional embodiments are disclosed and claimed.

公开(公告)号：EP2051138B1

公开(公告)日：2010-06-02

申请号：EP08450160.0

申请日：2008-10-17

Applicant: AIT Austrian Institute of Technology GmbH

Inventor： Pacher, Christoph ,  Finger, Norman

IPC: G02F1/39 ,  G06N99/00 ,  G02F1/355

CPC classification number: G02F1/395 ,  B82Y10/00 ,  G02F1/3558 ,  G02F2001/3548 ,  G02F2201/063 ,  G02F2201/18 ,  G02F2202/20 ,  G06N99/002 ,  H04L9/0858

公开(公告)号：EP1635213A3

公开(公告)日：2006-11-22

申请号：EP05018443.1

申请日：2000-10-24

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Mizuuchi, Kiminori ,  Yamamoto, Kazuhisa ,  Kojima, Rie ,  Yamada, Noboru

IPC: G02B6/126 ,  G02F1/35 ,  G02F1/377 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/12 ,  G11B7/24 ,  G11B7/243

CPC classification number: G11B7/243 ,  G02B6/126 ,  G02B6/29362 ,  G02B2006/12164 ,  G02F1/3532 ,  G02F1/3544 ,  G02F1/3775 ,  G02F2001/3548 ,  G02F2201/18 ,  G02F2203/58 ,  G11B7/00454 ,  G11B7/005 ,  G11B7/124 ,  G11B7/1275 ,  G11B7/1395 ,  G11B7/24038 ,  G11B7/259 ,  G11B7/26 ,  G11B2007/0013 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

Abstract: When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser beam with which a second recording medium including a second recording layer is recorded and reproduced as λ2 (nm), the relationship between the wavelength λ1 and the wavelength λ2 is set to be expressed by 10 ≦ |λ1 - λ2| ≦ 120. The first recording layer has a light absorptance ratio of at least 1.0 with respect to the wavelength λ1. The light transmittance of the first recording medium with respect to the wavelength λ2 is set to be at least 30 in both the cases where the recording layer is in a crystal state and in an amorphous state. In order to record and reproduce the optical multilayer disk with the above-mentioned characteristics, a multiwavelength light source with the following configuration is used. Wavelengths of fundamental waves with different wavelengths from injection parts formed at one end of a plurality of optical waveguides, which satisfy phase matching conditions different from one another and are formed in the vicinity of the surface of a substrate, are converted simultaneously, and the first and second laser beams are emitted from emission parts formed at substantially the same position at the other end of the optical waveguides. This enables an optimum optical system for high density recording and reproduction to be obtained.

公开(公告)号：EP1096484A3

公开(公告)日：2004-12-22

申请号：EP00309359.8

申请日：2000-10-24

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Mizuuchi, Kiminori ,  Yamamoto, Kazuhisa ,  Kojima, Rie ,  Yamada, Noboru

IPC: G11B7/24 ,  G02B6/10 ,  G02F1/137 ,  G02F1/37 ,  G11B7/125 ,  G11B7/135 ,  G11B7/0045 ,  G11B7/005

CPC classification number: G11B7/243 ,  G02B6/126 ,  G02B6/29362 ,  G02B2006/12164 ,  G02F1/3532 ,  G02F1/3544 ,  G02F1/3775 ,  G02F2001/3548 ,  G02F2201/18 ,  G02F2203/58 ,  G11B7/00454 ,  G11B7/005 ,  G11B7/124 ,  G11B7/1275 ,  G11B7/1395 ,  G11B7/24038 ,  G11B7/259 ,  G11B7/26 ,  G11B2007/0013 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

Abstract: When a wavelength of a first laser beam (23) with which a first recording medium (17) including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser beam (24) with which a second recording medium (18) including a second recording layer is recorded and reproduced as λ2 (nm), the relationship between the wavelength λ1 and the wavelength λ2 is set to be expressed by 10 ≦ |λ1 - λ2| ≦ 120. The first recording layer has a light absorptance ratio of at least 1.0 with respect to the wavelength λ1. The light transmittance of the first recording medium (17) with respect to the wavelength λ2 is set to be at least 30 in both the cases where the recording layer is in a crystal state and in an amorphous state. In order to record and reproduce the optical multilayer disk with the above-mentioned characteristics, a multiwavelength light source with the following configuration is used. Wavelengths of fundamental waves with different wavelengths from injection parts formed at one end of a plurality of optical waveguides, which satisfy phase matching conditions different from one another and are formed in the vicinity of the surface of a substrate, are converted simultaneously, and the first and second laser beams are emitted from emission parts formed at substantially the same position at the other end of the optical waveguides. This enables an optimum optical system for high density recording and reproduction to be obtained.

Abstract translation: 当记录和再现包含第一记录层的第一记录介质（17）的第一激光束（23）的波长被表示为λ1（nm）时，第二激光束（24）的波长与 包含第二记录层的第二记录介质（18）被记录并再现为λ2（nm），波长λ1和波长λ2之间的关系被设置为由10λ1-λ 第一记录层相对于波长λ1具有至少1.0的光吸收率。第一记录介质（17）相对于波长λ2的透光率被设定为 在记录层处于晶体状态和非晶状态的情况下，至少为30。 为了记录和再现具有上述特性的光学多层盘，使用具有以下配置的多波长光源。 同时转换不同波长的波长的波长与形成在多个光波导的一端的不同的相位匹配条件并形成在基板表面附近的相位匹配条件的波长的波长，第一 并且第二激光束从形成在光波导的另一端处的基本相同位置处的发射部分发射。 这使得能够获得用于高密度记录和再现的最佳光学系统。

公开(公告)号：EP2975441A1

公开(公告)日：2016-01-20

申请号：EP15177046.8

申请日：2015-07-16

Applicant: Oplink Communications, Inc

Inventor： Mao, Hongwei ,  Ji, Guijun ,  Qiao, Jinyuan ,  Zhu, Tian ,  Gong, Lifu

IPC: G02B6/27 ,  G02F1/09 ,  G02B27/28

CPC classification number: G02B6/105 ,  G02B6/2746 ,  G02B6/32 ,  G02B27/285 ,  G02F1/093 ,  G02F2201/18 ,  G02F2203/06

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optical communications. In one aspect, an optical circulator array includes a plurality of stacked three port circulators each having a respective first port of a first port array, a respective second port of a second port array, and a respective third port of a third port array, wherein each of the plurality of staked three port circulators share optical components including: a first Wollaston prism coupled to the first port array, a first lens, a first half wave plate, a polarization dependent beam path separator, a second half wave plate, a second lens, a propagation direction dependent polarization rotation assembly, a second Wollaston prism coupled to the second port array, and a third Wollaston prism coupled to the third port array.

Abstract translation: 方法，系统和装置，包括在计算机存储介质上编码的用于光通信的计算机程序。 在一个方面，光循环器阵列包括多个堆叠的三端口循环器，每个具有第一端口阵列的相应第一端口，第二端口阵列的相应第二端口和第三端口阵列的相应第三端口，其中 多个固定的三端口循环器中的每一个共享光学部件，包括：耦合到第一端口阵列的第一Wollaston棱镜，第一透镜，第一半波片，偏振相关光束路径分离器，第二半波片，第二 透镜，依赖于传播方向的偏振旋转组件，耦合到第二端口阵列的第二Wollaston棱镜，以及耦合到第三端口阵列的第三Wollaston棱镜。

公开(公告)号：EP2570847A4

公开(公告)日：2014-01-22

申请号：EP11780341

申请日：2011-04-14

Applicant: PANASONIC CORP

Inventor： HIRANO KOICHI ,  NAKAGAWA MASAMI ,  NAKATANI SEIICHI

IPC: G02F1/167 ,  G02F1/17 ,  G09F9/00 ,  G09F9/37 ,  G09F9/40

CPC classification number: G09F9/372 ,  G02F1/167 ,  G02F2001/1676 ,  G02F2201/18 ,  G09F9/301 ,  G09F15/0075

公开(公告)号：EP2251666A1

公开(公告)日：2010-11-17

申请号：EP08720369.1

申请日：2008-03-07

Applicant: National Institute of Information and Communication Technology

Inventor： KAWANISHI, Tetsuya ,  NAKAJIMA, Shinya ,  SHINADA, Satoshi

IPC: G01M11/00 ,  G02F1/035

CPC classification number: G02F1/225 ,  G02F2001/212 ,  G02F2201/18 ,  G02F2203/69

Abstract: Problem
An object is to provide a method for evaluating characteristics of individual Mach-Zehnder (MZ) interferometers in an optical modulator which includes a plurality of MZ interferometers.
Means for Solving Problems
The method comprises a step for adjusting a bias voltage of the MZ interferometer, a step for eliminating zero-order components, a step for measuring an output intensity and a step for evaluating characteristics. An optical modulator (1) includes the first MZ interferometer (2) and the second MZ interferometer (3). The first MZ interferometer (2) includes wave-branching section (5). Two arms (6,7), wave coupling section (8) and electrodes which is not shown in figures.

Abstract translation: 问题的一个目的是提供用于在光调制器都包括MZ干涉仪的多元性评价个体马赫 - 曾德尔（MZ）干涉仪的特性提供一种方法。 用于解决问题的方法，包括用于调节MZ干涉仪的偏置电压，为消除零阶分量，用于输出强度的测量步骤和用于评价特性的步骤的步骤的步骤。 干涉仪到光调制器（1）包括第一MZ（2）和所述第二MZ干涉仪（3）。 第一MZ干涉仪（2）包括波分支部（5）。 两个臂（6,7），波耦合部（8）和电极的所有未在附图中示出。

公开(公告)号：EP1635213A2

公开(公告)日：2006-03-15

申请号：EP05018443.1

申请日：2000-10-24

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Mizuuchi, Kiminori ,  Yamamoto, Kazuhisa ,  Kojima, Rie ,  Yamada, Noboru

IPC: G02F1/377 ,  G02B6/10 ,  G02F1/35 ,  G11B7/005 ,  G11B7/125 ,  G11B7/135 ,  G11B7/24

CPC classification number: G11B7/243 ,  G02B6/126 ,  G02B6/29362 ,  G02B2006/12164 ,  G02F1/3532 ,  G02F1/3544 ,  G02F1/3775 ,  G02F2001/3548 ,  G02F2201/18 ,  G02F2203/58 ,  G11B7/00454 ,  G11B7/005 ,  G11B7/124 ,  G11B7/1275 ,  G11B7/1395 ,  G11B7/24038 ,  G11B7/259 ,  G11B7/26 ,  G11B2007/0013 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

Abstract: When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser beam with which a second recording medium including a second recording layer is recorded and reproduced as λ2 (nm), the relationship between the wavelength λ1 and the wavelength λ2 is set to be expressed by 10 ≦ |λ1 - λ2| ≦ 120. The first recording layer has a light absorptance ratio of at least 1.0 with respect to the wavelength λ1. The light transmittance of the first recording medium with respect to the wavelength λ2 is set to be at least 30 in both the cases where the recording layer is in a crystal state and in an amorphous state. In order to record and reproduce the optical multilayer disk with the above-mentioned characteristics, a multiwavelength light source with the following configuration is used. Wavelengths of fundamental waves with different wavelengths from injection parts formed at one end of a plurality of optical waveguides, which satisfy phase matching conditions different from one another and are formed in the vicinity of the surface of a substrate, are converted simultaneously, and the first and second laser beams are emitted from emission parts formed at substantially the same position at the other end of the optical waveguides. This enables an optimum optical system for high density recording and reproduction to be obtained.

Abstract translation: 当记录和再现包括第一记录层的第一记录介质的第一激光束的波长被表示为»1（nm）时，包括第二记录层的第二记录介质的第二激光束的波长 被记录并再现为»2（nm），波长»1和波长»2之间的关系设置为表示为10‰| |»1 - »2 | ‰| 120.第一记录层相对于波长»1具有至少1.0的光吸收率。 在记录层处于晶体状态和非晶状态的情况下，第一记录介质相对于波长»2的透光率被设定为至少30。 为了记录和再现具有上述特性的光学多层盘，使用具有以下配置的多波长光源。 同时转换不同波长的波长的波长与形成在多个光波导的一端的不同的相位匹配条件并形成在基板表面附近的相位匹配条件的波长的波长，第一 并且第二激光束从形成在光波导的另一端处的基本相同位置处的发射部分发射。 这使得能够获得用于高密度记录和再现的最佳光学系统。