公开(公告)号：WO0120389A9

公开(公告)日：2002-08-29

申请号：PCT/AU0001115

申请日：2000-09-14

Applicant: UNIV SYDNEY ,  XU WEI ,  WONG DANNY ,  TOWN GRAHAM ,  CANNING JOHN ,  BLAZKIEWICZ PAUL

Inventor： XU WEI ,  WONG DANNY ,  TOWN GRAHAM ,  CANNING JOHN ,  BLAZKIEWICZ PAUL

IPC: G02B6/13 ,  G02B6/12 ,  G02F1/01 ,  G02F1/355 ,  G02F1/365 ,  G02F1/383 ,  G02F1/035

CPC classification number: G02F1/3558 ,  G02F1/3555 ,  G02F1/365 ,  G02F1/383 ,  G02F2201/02 ,  G02F2202/09

Abstract: A method of thermally poling a silica based waveguide (12) comprises exposing a region of the waveguide (12) to an electric field (for example, via capillary electrodes (22, 24) inserted into holes in the waveguide); directing a laser beam (18) into the region exposed to the electric field to effect localised heating of the region via direct absorption; and scanning the laser beam (18) over the region at a rate selected to avoid heating of the region above the glass transition temperature. Reversing the electric field while scanning the laser beam (18) allows the formation of periodic poled gratings. The waveguide (12) can comprise an optical fibre.

Abstract translation: 一种热极化基于二氧化硅的波导（12）的方法包括将波导（12）的区域暴露于电场（例如，通过插入波导中的孔中的毛细管电极（22,24））; 将激光束（18）引导到暴露于电场的区域中以通过直接吸收实现区域的局部加热; 以及以选择的速率在所述区域上扫描激光束（18），以避免加热所述区域高于玻璃化转变温度。 扫描激光束（18）时反转电场允许形成周期性极化光栅。 波导（12）可以包括光纤。

公开(公告)号：EP0868766A4

公开(公告)日：1999-01-13

申请号：EP96938861

申请日：1996-11-28

Applicant: UNIV SYDNEY

Inventor： STEPANOV DMITRII YURIEVICH ,  CANNING JOHN

IPC: H01S3/067 ,  H01S3/08 ,  H01S3/083 ,  H01S3/106 ,  H01S3/085

CPC classification number: H01S3/0675 ,  H01S3/06708 ,  H01S3/06791 ,  H01S3/08031

Abstract: A single longitudinal mode narrow linewidth and low threshold all fibre laser arrangement is disclosed, constructed from a ring cavity, a gain portion in the ring cavity, an input-output coupling interposed within the cavity and pumping means connected to the ring cavity and to the grating such that, upon actuation of the pumping means, the arrangement acts as a laser.

Abstract translation: 公开了单个纵向模式窄线宽和低阈值全部光纤激光器布置，其由环形空腔，环形腔中的增益部分，插入腔内的输入 - 输出耦合器和连接到环形腔体的泵送装置 光栅，使得在激励泵送装置时，该装置用作激光。

公开(公告)号：EP1181588A4

公开(公告)日：2003-08-06

申请号：EP00904724

申请日：2000-02-14

Applicant: UNIV SYDNEY

Inventor： CANNING JOHN ,  ASLUND MATTIAS

IPC: G02B5/30 ,  G02B6/10 ,  G02B6/12 ,  G02B6/122 ,  G02B6/124 ,  G02B6/126 ,  G02B6/13 ,  G02B6/36 ,  H01S3/00 ,  B23K26/36 ,  G02F1/01

CPC classification number: G02B6/105 ,  G02B6/124 ,  G02B6/126 ,  G02B6/13 ,  G02B2006/12107 ,  G02B2006/12176

Abstract: A method of processing an optical device incorporating a waveguide, the method comprising the step of utilizing a laser to heat a surface of the device to alter an optical characteristic of the waveguide, wherein the power density of the laser is selected to effect ablation.

Abstract translation: 一种处理结合有波导的光学装置的方法，该方法包括利用激光加热装置的表面以改变波导的光学特性的步骤，其中选择激光的功率密度以实现消融。

公开(公告)号：EP1200856A4

公开(公告)日：2003-04-02

申请号：EP00941797

申请日：2000-07-10

Applicant: UNIV SYDNEY

Inventor： CANNING JOHN

IPC: G01N21/27 ,  G01N21/77 ,  G02B6/00 ,  G02B6/02 ,  G02B6/12 ,  G02B6/122 ,  G02B6/28 ,  G02B6/293 ,  G02B6/30 ,  G02B6/34 ,  G02B5/28 ,  G02B6/16

CPC classification number: G02B6/02138 ,  B82Y20/00 ,  G01N21/774 ,  G01N2201/088 ,  G02B6/0208 ,  G02B6/12007 ,  G02B6/1225 ,  G02B6/2852 ,  G02B6/30 ,  G02B2006/12107

Abstract: An optical waveguide (1) has a grating structure (2) in which gratings of different orders are superimposed. When first and second order gratings are superimposed, input light is partially reflected by the first order component and partially coupled out of the waveguide by the second order component. The second order component can also be used to couple external light into the waveguide (1). The grating structure (2) has applications to free space couplers, optical sensors, and suppression of ripples in dispersion compensators.

公开(公告)号：EP1352273A4

公开(公告)日：2006-08-09

申请号：EP02715977

申请日：2002-01-18

Applicant: UNIV SYDNEY ,  UNIV MELBOURNE

Inventor： CANNING JOHN ,  HUNTINGTON SHANE ,  SOMMER KRISTY

IPC: C03B37/018 ,  G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  G02B6/26 ,  G02B6/18 ,  C03B37/012 ,  G02B3/08 ,  G02B6/22

CPC classification number: G02B6/02052 ,  C03B37/01807 ,  C03B37/01815 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/26 ,  G02B6/02 ,  G02B6/028 ,  G02B6/03611 ,  G02B6/03688 ,  G02B6/262

Abstract: An optical fibre being optically transmissive at a predetermined wavelength of light lambda and comprising a plurality of coaxial layers. Each layer having an optical path length that varies radially, the coaxial layers being arranged to give the fibre a refractive index profile which, in use, causes sufficient Fresnel diffraction of the light such that it is guided in the fibre. The refractive index of a cladding region (60) is intermittently suppressed by controlling heating of the preform tube, thus forming a chirped saw-tooth profile (70). The optical fibre may include a lens. In this case, each of the layers has an optical path length that increases gradually outwardly by substantially n x lambda /2 (n: integer).

Abstract translation: 一种光纤，其在预定波长的光λ下光学透射，并包括多个同轴层。 每个层具有径向变化的光程长度，同轴层布置成给光纤提供折射率分布，该折射率分布在使用中引起光的足够的菲涅耳衍射，使得其在光纤中被引导。 通过控制预制件管的加热来间歇地抑制包层区域（60）的折射率，从而形成啁啾锯齿形轮廓（70）。 光纤可以包括透镜。 在这种情况下，每个层的光程长度向外逐渐增加大致n×λ/ 2（n：整数）。

公开(公告)号：EP1084434A4

公开(公告)日：2005-09-28

申请号：EP99955330

申请日：1999-06-04

Applicant: UNIV SYDNEY

Inventor： CANNING JOHN

IPC: G02B6/124 ,  G02B6/13 ,  G02B6/10 ,  G02B6/12 ,  G02B6/122

CPC classification number: G02B6/124 ,  G02B6/13

Abstract: A waveguide having photosensitive properties is disclosed comprising: a waveguide substrate (2); a first cladding layer formed on the waveguide substrate; a UV absorbing layer (9) formed on the first cladding layer; a UV sensitive layer (4) having optical transmission properties adapted to be changed with UV irradiation, the layer formed on or closely adjacent the UV absorbing layer; and a second cladding layer, being substantially UV transparent, on the UV sensitive layer. Preferably, there is further provided a third cladding layer intermediate of the UV absorbing layer and the UV sensitive layer. The UV absorbing layer comprises a germanosilicate material. The absorbing layer can be adapted to change a physical property upon UV absorption. The UV absorbing layer can be variable thickness, the thickness being in accordance with predetermined requirements.

公开(公告)号：EP1200857A4

公开(公告)日：2002-11-04

申请号：EP00941809

申请日：2000-07-11

Applicant: UNIV SYDNEY

Inventor： CANNING JOHN

IPC: G01N21/27 ,  G01N21/77 ,  G02B6/00 ,  G02B6/02 ,  G02B6/12 ,  G02B6/122 ,  G02B6/28 ,  G02B6/293 ,  G02B6/30 ,  G02B6/34 ,  G02B5/28 ,  G02B6/13

CPC classification number: G02B6/02138 ,  B82Y20/00 ,  G01N21/774 ,  G01N2201/088 ,  G02B6/0208 ,  G02B6/12007 ,  G02B6/1225 ,  G02B6/2852 ,  G02B6/30 ,  G02B2006/12107

Abstract: A grating structure is written in a photosensitive waveguide (17) by dividing a coherent beam (10) into at least three beams (12, 13, 14), and interfering them at the waveguide (17). The beams may comprise a zero order beam (12) and two first order beams (13, 14) diffracted by a phase mask (11), and their relative phases and amplitudes may be modulated to control and/or tune the grating period and shape. The method allows grating structures to be written in which a first order grating and a second order grating are superimposed.

公开(公告)号：EP1419405A4

公开(公告)日：2006-06-07

申请号：EP02748448

申请日：2002-07-22

Applicant: UNIV SYDNEY ,  RPO PTY LTD

Inventor： LARGE MARYANNE CANDIDA JANE ,  ZAGARI JOSEPH ,  RYAN TOM ,  CANNING JOHN ,  VAN EIJKELENBORG MARTIJN ALEXA ,  GORINGE NILMINI SUREKA ,  ISSA NADER

IPC: B29C33/00 ,  B29C33/38 ,  B29D11/00 ,  G02B6/02 ,  G02B6/16 ,  C03B37/012 ,  C03B37/02 ,  G02B6/20

CPC classification number: G02B6/02314 ,  B29C33/0033 ,  B29C33/38 ,  B29D11/00721 ,  B29L2011/0075 ,  G02B6/02033 ,  Y10T428/24273

Abstract: This invention relates to a method of preparing a preform for an optical fibre, and more particularly to a method of preparing a preform for a polymer holey optical fibre. The invention provides a method of preparing a preform for manufacture of a polymer holey optical fibre comprising casting a preform body in a mould from a suitable material, said mould including at least one protrusion adapted to form a corresponding hole within the preform, and subsequently separating the preform body and mould. The invention also provides a method of preparing a preform for manufacture of a polymeric holey optical fibre comprising separately casting one or more elements of a preform in respective mould(s) from a suitable material, and separating said elements from said respective mould(s) and combining said elements to construct a preform having a plurality of holes therein, each hole being formed in an element or formed by the combination of two or more elements.

公开(公告)号：EP1212656A4

公开(公告)日：2005-03-16

申请号：EP00963805

申请日：2000-09-14

Applicant: UNIV SYDNEY

Inventor： XU WEI ,  WONG DANNY ,  TOWN GRAHAM ,  CANNING JOHN ,  BLAZKIEWICZ PAUL

IPC: G02B6/13 ,  G02B6/12 ,  G02F1/01 ,  G02F1/355 ,  G02F1/365 ,  G02F1/383 ,  G02F1/035

CPC classification number: G02F1/3558 ,  G02F1/3555 ,  G02F1/365 ,  G02F1/383 ,  G02F2201/02 ,  G02F2202/09

Abstract: A method of thermally poling a silica based waveguide (12) comprises exposing a region of the waveguide (12) to an electric field (for example, via capillary electrodes (22, 24) inserted into holes in the waveguide); directing a laser beam (18) into the region exposed to the electric field to effect localised heating of the region via direct absorption; and scanning the laser beam (18) over the region at a rate selected to avoid heating of the region above the glass transition temperature. Reversing the electric field while scanning the laser beam (18) allows the formation of periodic poled gratings. The waveguide (12) can comprise an optical fibre.

Abstract translation: 一种热极化基于二氧化硅的波导（12）的方法包括将波导（12）的区域暴露于电场（例如，通过插入波导中的孔中的毛细管电极（22,24））; 将激光束（18）引导到暴露于电场的区域中以通过直接吸收实现区域的局部加热; 并以所选择的速率在该区域上扫描激光束（18），以避免加热玻璃化转变温度以上的区域。 在扫描激光束（18）时反转电场允许形成周期性极化光栅。 波导（12）可以包括光纤。

公开(公告)号：EP1196796A4

公开(公告)日：2005-02-23

申请号：EP00920276

申请日：2000-05-01

Applicant: UNIV SYDNEY

Inventor： CANNING JOHN ,  ASLUND MATTIAS LENNART

IPC: G02B6/13 ,  C03C25/62 ,  G02B5/18 ,  G02B6/02 ,  G02B6/18 ,  G02B5/26 ,  G02B5/28 ,  G02B6/10 ,  G02B6/16

CPC classification number: G02B6/02114 ,  C03C25/6226

Abstract: A method of creating an optical structure within a photosensitive light transmissive material comprising the steps of: (a) exposing a selected region of the material to radiation at a wavelength selected to effect a refractive index change in the material; (b) terminating the exposure to the radiation at a selected fluence; and afterwards (c) exposing at least one portion of the selected region to UV radiation at a level sufficient to vary the refractive index of the material within the selected region to form the optical structure; wherein the fluence is selected such that the optical structure is substantially thermally stable without a requirement for post-processing annealing.