公开(公告)号：AU7989300A

公开(公告)日：2001-04-30

申请号：AU7989300

申请日：2000-09-29

Applicant: CORNING INC

Inventor： BORRELLI NICHOLAS F ,  ALLAN DOUGLAS C ,  SMITH CHARLENE M

IPC: G02B6/122 ,  G02B6/12 ,  G02B6/13 ,  G02B6/02

Abstract: A method of writing a light guiding structure (26) in a bulk glass substrate (4) including selecting a bulk glass substrate (4) made from a soft silica based material. An excimer laser beam (5) is focused at a focus point (3) within the substrate while translating the focus relative to the substrate along the scan path. The laser beam (5) is moved at a scan speed so as to induce an increase in the refractive index of the material along the scan path relative to that of the unexposed material, while at the same time incurring very little laser induced breakdown of the material along the scan path. Various optical devices, including waveguides, can be made in this way.

公开(公告)号：AU8495101A

公开(公告)日：2002-02-25

申请号：AU8495101

申请日：2001-08-15

Applicant: CORNING INC

Inventor： ALLAN DOUGLAS C ,  COTTEVERTE JEAN-CHARLES JOSEPH ,  KUCHINSKY SERGEY A ,  RENVAZE CHRISTOPHE F P

IPC: G02B6/122 ,  G02B6/125 ,  G02B6/35 ,  G02F1/01 ,  G02B6/10

Abstract: An active photonic crystal device for controlling an optical signal is disclosed. The device includes a planar photonic crystal with a defect waveguide bounded on the top and bottom by an upper cladding region and a lower cladding region. An optical signal propagating in the defect waveguide is confined in the plane of the photonic crystal by the photonic bandgap, and in the direction normal to the photonic crystal by the upper clad region and the lower clad region. The propagation of the optical signal in the defect waveguide is controlled by varying the optical properties at least one of the upper clad region or the lower clad region. The variation of the optical properties of the controllable regions may be achieved using a thermo-optic effect, an electro-optic effect, a stress-optic effect, or a mechano-optic effect, or by moving a material into or out of the controllable region.

公开(公告)号：CA2355678A1

公开(公告)日：2000-06-29

申请号：CA2355678

申请日：1999-11-30

Applicant: CORNING INC

Inventor： ALLAN DOUGLAS C ,  HAWTOF DANIEL W ,  BORRELLI NICHOLAS F ,  FAJARDO JAMES C ,  FIACCO RICHARD M ,  WEST JAMES A

IPC: G02B6/02 ,  C03B37/012 ,  C03B37/028 ,  C03C13/04 ,  G02B6/024 ,  G02B6/036 ,  G02B6/18

Abstract: Disclosed is an optical waveguide fiber preform which is an assembly of one or more core rods (14) surrounded by a plurality of clad rods (10). The clad ro ds (10) have a central portion (12) and a surrounding layer (22), in which the refractive index of the central portion is lower than that of the surroundin g layer. The preform is drawn into an optical waveguide fiber that has a two component clad layer. Proper choice of the central portion (12) and surrounding layer provide a waveguide fiber that is endlessly single mode. Alternative embodiments include fibers containing dopants that enhance fiber photosensitivity or which provide stress-induced or asymmetric-refractive- index-induced birefringence in the waveguide fiber.

公开(公告)号：AU2002351376A8

公开(公告)日：2003-07-09

申请号：AU2002351376

申请日：2002-12-11

Applicant: CORNING INC

Inventor： KOCH KARL W III ,  BROWN JOHN T ,  GRAY STUART ,  WEST JAMES A ,  HOUSE KEITH L ,  CHACON LISA C ,  ELLISON ADAM J G ,  FAJARDO JAMES C ,  POWERS DALE R ,  ALLAN DOUGLAS C

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/02 ,  G02B6/036 ,  G02F1/35

Abstract: An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A heavier, less naturally abundant isotope of silicon or oxygen is substituted for a lighter, more naturally abundant isotope to shift the infrared absorption to a slightly longer wavelength. In one embodiment, oxygen-18 is substituted for the much more naturally abundant oxygen-16 at least in the core region of the fiber. The resulting isotopically-altered fiber has a minimum loss of 0.044 dB/km less than conventional fiber, and a bandwidth that is 17 percent broader for a loss range between 0.044-0.034 dB/km. The fiber may be easily manufactured with conventional fiber manufacturing equipment by way of a plasma chemical vapor deposition technique. When a 50 percent substitution of oxygen -18 for oxygen-16 is made in the core region of the fiber, the Raman gain spectrum is substantially broadened.

公开(公告)号：AU2002257270A1

公开(公告)日：2002-11-25

申请号：AU2002257270

申请日：2002-05-14

Applicant: CORNING INC

Inventor： ALLAN DOUGLAS C ,  SMITH CHARLENE M ,  STONE BRYAN D ,  BORRELLI NICHOLAS F

IPC: C30B33/00 ,  G02B1/02 ,  G03F7/20 ,  H01L21/027 ,  G02B5/30 ,  G02F1/01 ,  G02B27/14 ,  G02B27/10 ,  F21V9/06 ,  G02B27/12 ,  G02B13/14

Abstract: The invention provides a method of making a crystal direction of the optical calcium fluoride crystal. In a preferred embodiment, the below 194 nm transmitting optical element is a oriented calcium fluoride lens. In a preferred embodiment, the below 194 nm transmitting optical element is a oriented calcium fluoride beam splitter.

公开(公告)号：DE112005003341B4

公开(公告)日：2019-01-31

申请号：DE112005003341

申请日：2005-12-29

Applicant: CORNING INC

Inventor： ALLAN DOUGLAS C ,  BOOKBINDER DANA C ,  NEUKIRCH ULRICH ,  SMITH CHARLENE M

IPC: C03C3/06 ,  C03B19/14 ,  C03C4/00

Abstract: Synthetisches Siliziumdioxidglasmaterial, welches geeignet ist, im Strahlengang lithografischer Strahlung unter etwa 300 nm in Lithografiegeräten benutzt zu werden, und welches weniger als etwa 1 nm/cm, vorzugsweise weniger als 0,1 nm/cm, an polarisationsinduzierter Doppelbrechung, gemessen bei etwa 633 nm, aufweist, nachdem es 5 × 10Impulsen eines linear polarisierten gepulsten Laserstrahls bei etwa 193 nm ausgesetzt worden ist, der eine Fluenz von ungefähr 40 µJ·cmpro Impuls und eine Impulslänge von etwa 25 ns aufweist, wobei das synthetische Siliziumdioxidglasmaterial im Wesentlichen aus synthetischem Siliziumdioxid, Hund OH besteht und Hvon 1 × 10Molekülen pro cmbis weniger als 5,0 × 10Moleküle pro cmenthält, wobei die OH-Konzentration im Glas niedriger als 50 Gew.-ppm ist und wobei das Glas weniger als 10 ppb an Alkalimetallen, Erdalkalimetallen oder Übergangsmetallen enthält.

公开(公告)号：AU2002248476A1

公开(公告)日：2002-10-03

申请号：AU2002248476

申请日：2002-02-11

Applicant: CORNING INC

Inventor： BORRELLI NICHOLAS F ,  WEST JAMES A ,  FAJARDO JAMES C ,  ALLAN DOUGLAS C ,  KOCH III KARL W

IPC: G02B6/122 ,  G02B6/16 ,  G02B6/20

Abstract: Disclosed is a photonic band-gap crystal waveguide having the physical dimension of the photonic crystal lattice and the size of the defect selected to provide for optimum mode power confinement to the defect. The defect has a boundary which has a characteristic numerical value associated with it. The ratio of this numerical value to the pitch of the photonic crystal is selected to avoid surface modes found to exist in certain configurations of the photonic band-gap crystal waveguide. Embodiments in accord with the invention having circular and hexagonal defect cross sections are disclosed and described. A method of making the photonic band-gap crystal waveguide is also disclosed and described.

公开(公告)号：DE112005003341T5

公开(公告)日：2008-02-28

申请号：DE112005003341

申请日：2005-12-29

Applicant: CORNING INC

Inventor： ALLAN DOUGLAS C ,  BOOKBINDER DANA C ,  NEUKIRCH ULRICH ,  SMITH CHARLENE M

IPC: C03C3/06 ,  C03B19/14 ,  C03C4/00

公开(公告)号：AU2003230288A1

公开(公告)日：2003-12-02

申请号：AU2003230288

申请日：2003-05-07

Applicant: CORNING INC

Inventor： AITKEN BRUCE G ,  ALLAN DOUGLAS C ,  BORRELLI NICHOLAS F ,  KOCH KARL W III ,  WEST JAMES A

IPC: G02B6/032 ,  G02B6/02 ,  G02B6/34 ,  G02F1/35 ,  G02F1/365 ,  G02B6/16

Abstract: A microstructured optical waveguide that supports the propagation of an optical signal of a desired wavelength is described. The optical waveguide includes a core region formed from an optically nonlinear material having a gamma of at least about 2.5x10 m /W at 1260 nm. The optical waveguide also includes a cladding region surrounding the core region, the cladding region including a bulk material and a lattice of columns located in the bulk material, the lattice of columns having a pitch, and each column having a cross-sectional area. The pitch of the lattice and the areas of the columns are selected such that the dispersion of the optical signal at the desired wavelength is within the range of about -70 ps/nm-km to about 70 ps/nm-km.

公开(公告)号：AU2002351376A1

公开(公告)日：2003-07-09

申请号：AU2002351376

申请日：2002-12-11

Applicant: CORNING INC

Inventor： HOUSE KEITH L ,  KOCH KARL W III ,  POWERS DALE R ,  WEST JAMES A ,  ALLAN DOUGLAS C ,  BROWN JOHN T ,  CHACON LISA C ,  ELLISON ADAM J G ,  FAJARDO JAMES C ,  GRAY STUART

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/02 ,  G02B6/036 ,  G02F1/35

Abstract: An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A heavier, less naturally abundant isotope of silicon or oxygen is substituted for a lighter, more naturally abundant isotope to shift the infrared absorption to a slightly longer wavelength. In one embodiment, oxygen-18 is substituted for the much more naturally abundant oxygen-16 at least in the core region of the fiber. The resulting isotopically-altered fiber has a minimum loss of 0.044 dB/km less than conventional fiber, and a bandwidth that is 17 percent broader for a loss range between 0.044-0.034 dB/km. The fiber may be easily manufactured with conventional fiber manufacturing equipment by way of a plasma chemical vapor deposition technique. When a 50 percent substitution of oxygen -18 for oxygen-16 is made in the core region of the fiber, the Raman gain spectrum is substantially broadened.