公开(公告)号：DE69801632T2

公开(公告)日：2002-06-27

申请号：DE69801632

申请日：1998-11-03

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ABRAMOV ANATOLI A ,  HALE ARTURO ,  MOCK JOEL LESLIE ,  STRASSER THOMAS A ,  VENGSARKAR ASHISH MADHUKAR

IPC: G02B26/00 ,  G02F1/313 ,  H04B10/02 ,  H04B10/152 ,  H04J14/00 ,  H04J14/02 ,  H04B10/08

Abstract: Apparatus for monitoring multi-wavelength optical systems includes an optical fiber system (44) and apparatus (42) for separating the different wavelengths of transmitted light transmitted therethrough and for monitoring the respective optical power in the separated spectral components. More specifically, embodiments of the invention scan or modify the physical parameters of in-fiber gratings (46) that couple light between spatially different modes of light within a wavelength-division-multiplexed optical fiber system, separate the spatial modes using a mode-discriminating device (47) and monitor or detect the separated spectral components using a conventional or other suitable detector (48). By scanning the in-fiber gratings, the peak wavelength of coupling between two dissimilar modes is modified, thus allowing control of the coupling within the fiber optic system. Scanning the grating is performed, for example, by changing the temperature or modifying the physical dimensions of the grating. In one embodiment, the system employs a long-period grating that couples light between two co-propagating, spatially different modes. In an alternative embodiment, the system uses a short-period grating that couples light between a forward propagating mode and a spatially dissimilar, backward propagating mode.

公开(公告)号：SG78393A1

公开(公告)日：2001-02-20

申请号：SG1999004628

申请日：1999-09-20

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BAIR HARVEY EDWARD ,  HALE ARTURO ,  SCHILLING MARCIA LEA

IPC: G01B7/00 ,  G01F22/00 ,  G01F17/00

Abstract: A method for determining a volume change of a viscous liquid during a physical or chemical process is disclosed. The volume change of the viscous liquid is determined by confining a layer of a viscous liquid on a portion of a rigid body and then measuring the linear (one dimensional) displacement of a planar surface formed thereon, as the viscous liquid undergoes the physical or chemical process. The surface of the layer of the viscous liquid is planar relative to the rigid body.

公开(公告)号：CA2332068C

公开(公告)日：2004-04-27

申请号：CA2332068

申请日：2001-01-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： STRASSER THOMAS ANDREW ,  HALE ARTURO ,  WESTBROOK PAUL STEPHEN

IPC: G02B6/02 ,  C03C25/24 ,  G02B5/18 ,  G02B6/10 ,  G02B6/34 ,  G02B6/44

Abstract: In accordance with the invention, an optical fiber Bragg grating comprises a length of gloss optical fiber having a core, a Bragg grating formed along the core, a glass cladding and a polymer coating on the cladding havin g an index of refraction matched to that the cladding. Such index matching can reduce the cladding mode loss by a factor of four over current levels. A preferred coating material comprises fluorinated urethane acrylate.

公开(公告)号：DE69721204T2

公开(公告)日：2004-02-05

申请号：DE69721204

申请日：1997-12-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HALE ARTURO ,  PATEL SANJAY ,  BLYLER JR

IPC: G02B6/44 ,  C03C25/10 ,  C03C25/24 ,  C08F2/48 ,  C08F8/42 ,  C08F290/06 ,  C08L55/00 ,  C09D4/00 ,  G02B6/02 ,  G02B1/00

Abstract: A composition useful for making a coated optical fiber wherein the composition comprises a photocurable or E-beam curable composition having an alkoxysilane functionality attached through a long backbone.

公开(公告)号：DE69801632D1

公开(公告)日：2001-10-18

申请号：DE69801632

申请日：1998-11-03

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ABRAMOV ANATOLI A ,  HALE ARTURO ,  MOCK JOEL LESLIE ,  STRASSER THOMAS A ,  VENGSARKAR ASHISH MADHUKAR

IPC: G02B26/00 ,  G02F1/313 ,  H04B10/02 ,  H04B10/152 ,  H04J14/00 ,  H04J14/02 ,  H04B10/08

Abstract: Apparatus for monitoring multi-wavelength optical systems includes an optical fiber system (44) and apparatus (42) for separating the different wavelengths of transmitted light transmitted therethrough and for monitoring the respective optical power in the separated spectral components. More specifically, embodiments of the invention scan or modify the physical parameters of in-fiber gratings (46) that couple light between spatially different modes of light within a wavelength-division-multiplexed optical fiber system, separate the spatial modes using a mode-discriminating device (47) and monitor or detect the separated spectral components using a conventional or other suitable detector (48). By scanning the in-fiber gratings, the peak wavelength of coupling between two dissimilar modes is modified, thus allowing control of the coupling within the fiber optic system. Scanning the grating is performed, for example, by changing the temperature or modifying the physical dimensions of the grating. In one embodiment, the system employs a long-period grating that couples light between two co-propagating, spatially different modes. In an alternative embodiment, the system uses a short-period grating that couples light between a forward propagating mode and a spatially dissimilar, backward propagating mode.

公开(公告)号：AU4252100A

公开(公告)日：2001-01-04

申请号：AU4252100

申请日：2000-06-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ALOISIO CHARLES JOSEPH ,  HALE ARTURO ,  KUCK VALERIE JEANNE ,  MALLUCK JOHN FRANCIS ,  SIMPKINS PETER GERALD

IPC: G02B6/44 ,  C03C25/10 ,  C03C25/24 ,  C09D4/06 ,  C03C25/34 ,  C03C25/26 ,  C03C25/48