公开(公告)号：EP2133963B1

公开(公告)日：2024-05-01

申请号：EP08720435.0

申请日：2008-03-12

IPC: H01S3/067 ,  H01S3/16 ,  H04B10/294 ,  H04B10/296

CPC classification number: H01S3/06708 ,  H01S3/06716 ,  H01S3/0672 ,  H01S3/06729 ,  H04B10/2941 ,  H01S3/06758 ,  H01S3/1608 ,  H04B10/296

公开(公告)号：EP2110902B1

公开(公告)日：2018-10-24

申请号：EP09004741.6

申请日：2009-03-31

Applicant: OFS Fitel, LLC

Inventor： Nicholson, Jeffrey W. ,  Westbrook, Paul

IPC: H01S3/067

CPC classification number: H01S3/06708 ,  H01S3/0675 ,  H01S3/06791

Abstract: A fiber laser having at least one pair of reflectors coupled to an optical fiber, the at least one pair of reflectors defining an optical cavity between the at least one pair of reflectors and being configured to reflect light within the optical cavity. At least one light pump is coupled to the optical fiber and configured to provide pump light into the optical cavity, and at least one medium is positioned within the optical cavity and configured to generate signal light from the pump light in the optical cavity. Further, at least one grating positioned within the optical cavity and configured to couple the signal light out of the optical cavity.

公开(公告)号：EP1815565B1

公开(公告)日：2018-09-05

申请号：EP05810607.1

申请日：2005-11-25

Applicant: THE COMMONWEALTH OF AUSTRALIA

Inventor： TIKHOMIROV, Alexei ,  FOSTER, Scott

IPC: H01S3/067 ,  H01S3/08

CPC classification number: H01S3/0675 ,  H01S3/06708 ,  H01S3/08031

Abstract: A method and apparatus for modifying the out of band reflection of a laser element is described. The laser element includes an active medium excited by optical pumping means to produce stimulation emission of light. The laser element further includes a Bragg grating structure for providing optical feedback for the active medium, with the Bragg grating structure including a phase transition region providing a change in phase. The change in phase of the phase transition region is adjusted to modify out of band reflection of said laser element.

公开(公告)号：EP3173753A4

公开(公告)日：2018-04-18

申请号：EP15849086

申请日：2015-10-02

Applicant: FUJIKURA LTD

Inventor： KASHIWAGI MASAHIRO

IPC: G01J1/02 ,  B23K26/03 ,  G02B6/42 ,  H01S3/00 ,  H01S3/067 ,  H01S3/13 ,  H01S3/131

CPC classification number: G01M11/31 ,  B23K26/03 ,  B23K26/032 ,  B23K26/705 ,  B23K26/707 ,  G01J1/02 ,  G01M11/33 ,  G01M11/37 ,  G02B6/4289 ,  G02B6/4291 ,  G02B6/4296 ,  H01S3/00 ,  H01S3/0014 ,  H01S3/067 ,  H01S3/06704 ,  H01S3/06708 ,  H01S3/1306 ,  H01S3/1312

Abstract: An optical power monitor device includes a first optical fiber, including a core and a cladding surrounding the core and being at least one of an incidence-side optical fiber and a launch-side optical fiber connected to each other at a connection point, which is constituted by a curve portion and a linear portion between the curve portion and the connection point, a low refractive index layer that is provided in at least a portion of the linear portion on an outer side of the cladding and has a refractive index lower than a refractive index of the cladding, and a first optical detector that is provided at a position close to at least the curve portion.

公开(公告)号：EP2195892A4

公开(公告)日：2018-02-14

申请号：EP08805462

申请日：2008-09-29

IPC: H01S3/067 ,  C03B37/027 ,  G02B6/036

CPC classification number: H01S3/06708 ,  C03B37/02763 ,  C03B2203/02 ,  C03B2203/04 ,  C03B2203/06 ,  C03B2203/18 ,  C03B2203/32 ,  C03B2205/40 ,  C03B2205/44 ,  G02B6/036 ,  G02B6/14 ,  H01S3/06745 ,  H01S3/094007 ,  H01S3/094011 ,  Y10T29/49982

Abstract: A section of active optical fiber (11) which comprises an active core (1), an inner cladding layer (2) and an outer cladding layer (3). The diameter of said core 1) and the thickness of said inner cladding (2) change gradually along the length of said section of active optical fiber (11). This forms tapered longitudinal profile enabling a continuous mode conversion process along the length of the section of fiber (11). The method for fabricating a section of tapered active optical fiber comprises the steps of fabricating a preform for drawing active optical fiber from said preform, installing said preform into a drawing tower, drawing optical fiber in said drawing tower and altering at least one of the two parameters including the take-off preform speed and the take-up fiber speed during drawing of the optical fiber.

公开(公告)号：EP3235075A1

公开(公告)日：2017-10-25

申请号：EP15869465.3

申请日：2015-12-13

Applicant: Ocuwave Ltd.

Inventor： COHEN, Nissim

IPC: H01S3/07 ,  H01S3/10 ,  H01S3/082

CPC classification number: G02F1/353 ,  G02F1/3501 ,  G02F1/37 ,  H01S3/0092 ,  H01S3/06708 ,  H01S3/07 ,  H01S3/08054 ,  H01S3/08086 ,  H01S3/08095 ,  H01S3/0815 ,  H01S3/082 ,  H01S3/108 ,  H01S3/1083 ,  H01S3/1086 ,  H01S3/109 ,  H01S3/11 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1643

Abstract: A laser system is described, the laser system comprising: an optical cavity defined by at least first and second at least partially reflecting elements; and a gain system. The gain system comprising at least first and second gain media located within the optical cavity. The first and second gain media are configured to generate optical radiation of at least first and second wavelength ranges in response to pumping energy.

Abstract translation: 描述了一种激光系统，该激光系统包括：由至少第一和第二至少部分反射元件限定的光学腔; 和增益系统。 增益系统至少包括位于光腔内的第一和第二增益介质。 第一增益介质和第二增益介质被配置为响应于泵浦能量而产生至少第一波长范围和第二波长范围的光辐射。

公开(公告)号：EP2041848B1

公开(公告)日：2017-08-09

申请号：EP07823513.2

申请日：2007-06-08

Applicant: EOLITE Systems

Inventor： METIVIER, Philippe ,  SALIN, François

IPC: H01S3/067

CPC classification number: H01S3/06708 ,  H01S3/06704 ,  H01S3/0672 ,  H01S3/06729 ,  H01S3/094003

公开(公告)号：EP3104202A1

公开(公告)日：2016-12-14

申请号：EP15743598.3

申请日：2015-02-02

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/255 ,  G02B6/02 ,  G02B6/44 ,  H01S3/067

CPC classification number: H01S3/094007 ,  G02B6/14 ,  G02B6/245 ,  G02B6/255 ,  G02B6/2558 ,  G02B6/264 ,  G02B6/4296 ,  H01S3/0405 ,  H01S3/06704 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/094053 ,  H01S3/09408 ,  H01S3/0941

Abstract: A leakage light removal structure 70 is used to remove leakage light in an optical fiber 140 having a core 160, a cladding 162 having a refractive index lower than the core 160, and a covering material 164 having a refractive index higher than the cladding 162. The leakage light removal structure 70 has a fiber housing 72 that houses part of the optical fiber140, a covering material extension portion 175 covering part of a whole circumference of the cladding 162 by extending part of the covering material 164 along a longitudinal direction of the optical fiber 140 within the fiber housing 72, and a cladding exposure portion 174 in which a portion of the whole circumference of the cladding 162 other than the covering material extension portion 175 is exposed within the fiber housing 72. The covering material 164 may be covered with a resin 76 having a refractive index not more than the refractive index of the covering material 164. For example, the covering material extension portion 175 is formed with a range of angles equal to or less than 180° about an axis of the optical fiber 140 in a cross-section perpendicular to the axis.

Abstract translation: 泄漏光去除结构70用于去除具有芯160，折射率低于芯160的折射率的包层162的光纤140和折射率高于包层162的覆盖材料164的泄漏光。 泄漏光去除结构70具有容纳光纤140的一部分的光纤壳体72，覆盖材料延伸部175，覆盖材料延伸部175覆盖包层162的整个周边的一部分，通过沿着光学器件的长度方向延伸覆盖材料164的一部分 纤维壳体72内的纤维140以及覆盖材料延伸部分175以外的包覆层162的整个圆周的一部分暴露在纤维壳体72内的包层曝光部分174.覆盖材料164可以覆盖 具有折射率不大于覆盖材料164的折射率的树脂76.例如，覆盖材料延伸部分175 在垂直于该轴线的横截面中围绕光纤140的轴线形成等于或小于180度的角度范围。

公开(公告)号：EP2337166B1

公开(公告)日：2016-11-30

申请号：EP10306471.3

申请日：2010-12-21

Applicant: IXBLUE

Inventor： Robin, Thierry ,  Cadier, Benoît

IPC: H01S3/067 ,  C03B37/012

CPC classification number: H01S3/06708 ,  C03B37/0122 ,  C03B37/01228 ,  C03B37/0124 ,  C03B37/01838 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/23 ,  H01S3/06716 ,  H01S3/06729

公开(公告)号：EP3086420A2

公开(公告)日：2016-10-26

申请号：EP16162159.4

申请日：2016-03-24

Applicant: OFS Fitel, LLC (a Delaware Limited Liability Company)

Inventor： Nicholson, Jeffrey W. ,  Rosales-Garcia, Andrea ,  Ramakrishna, Supradeepa V.S.

IPC: H01S3/067

CPC classification number: H01S3/06708 ,  H01S3/0078 ,  H01S3/067 ,  H01S3/06729 ,  H01S3/0675 ,  H01S3/094007 ,  H01S3/09408 ,  H01S3/10023 ,  H01S2301/02 ,  H01S2301/03

Abstract: A technique is described for eliminating feedback light in a high-power optical device. An optical device is provided that generates, along an optical pathway, an output light at a desired signal wavelength, wherein the generation of the output light at the signal wavelength results in the generation of a feedback light at an undesired feedback wavelength. A port is provided at a selected location along the optical fiber pathway. The port is terminated with a length of a filter fiber, wherein the filter fiber has loss characteristics at the feedback wavelength that result in the elimination of feedback light from the optical fiber pathway through the port.