公开(公告)号：EP1425617A1

公开(公告)日：2004-06-09

申请号：EP02767348.2

申请日：2002-08-08

Applicant: Ibsen Photonics A/S ,  Khalfaoui, Chaker ,  Theodor, Keld ,  Bastue, Jens ,  Rose, Bjarke

Inventor： KHALFAOUI, Chaker ,  THEODOR, Keld ,  BASTUE, Jens ,  ROSE, Bjarke

IPC: G02B6/34

CPC classification number: G02B6/27 ,  G02B6/2706 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/2938 ,  G02B6/29383 ,  G02B6/29385

Abstract: A method and apparatus are presented for aligning a diffractive WDM device that includes i) a multi-channel, light handling device having a selected channel spacing and ii) a multi-channel signal input unit. The method includes adjusting a direction of incidence of an optical signal from the input unit on at least a first diffracting element of the WDM device so as to set an actual optical channel spacing at an output region of the WDM device to be approximately equal to the selected channel spacing of the multi-channel, light handling device. In the apparatus, the orientation of the light input unit is adjustable in a direction parallel to a diffraction plane of the diffractive WDM device so as to select an actual channel spacing at the multi-channel, light handling device that is approximately equal to the selected channel spacing.

公开(公告)号：EP1400047A2

公开(公告)日：2004-03-24

申请号：EP02742455.5

申请日：2002-02-20

Applicant: Ibsen Photonics A/S

Inventor： ROSE, Bjarke ,  RASMUSSEN, Thomas ,  KHALFAOUI, Chaker ,  RASMUSSEN, Michael ,  BASTU, Jens ,  IBSEN, Per, Eld ,  PEDERSON, Claus

IPC: H04J14/02 ,  G02B6/34

CPC classification number: H04J14/0212 ,  G02B6/2713 ,  G02B6/2793 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29383 ,  G02B6/3512 ,  G02B6/3514 ,  G02B6/4215 ,  H04B10/077 ,  H04B10/07955 ,  H04J14/02

Abstract: A wavelength division multiplexed device is based on a transmission grating spectrometer having at least two diffractive optical elements. The WDM device provides flexible use and may be widely applied in WDM systems. The device is useful for multiplexing and demultiplexing, channel monitoring, and for adding and dropping channels. The device provides programmability in use as an add/drop multiplexer.

公开(公告)号：EP1381890A2

公开(公告)日：2004-01-21

申请号：EP02735810.0

申请日：2002-03-28

Applicant: Ibsen Photonics A/S

Inventor： LASSE, Wengel, Christoffersen ,  BJARKE, Rose ,  IBSEN, Per, Eld

IPC: G02B1/00

CPC classification number: G02B6/4215 ,  G02B5/1852 ,  G02B6/1221 ,  G02B6/29307 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/4224 ,  G02B6/423 ,  G02B6/4249 ,  G02B6/43 ,  G02B2006/12176

Abstract: In a method of making a replication tool, replication parts for both two dimensional optical elements, such as are fabricated using micro-forming techniques, and three dimensional optical elements, that are typically formed using cutting techniques are present on the replication tool. A method of manufacturing a replication tool for a planar optical sheet includes mounting at least one optical element part on a bse to form a master part and forming a conductive metal layer over the master part. The method also comprises electrochemically depositing over the conductive metal layer to form an electrochemically deposited layer, separating the electrochemically deposited layer from the master part. The invention also relates to the replication tool itself and optical circuits formed using the replication tool.