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.