Verfahren zur Überwachung eines optischen Wellenleiters, Überwachungsvorrichtung und Überwachungseinheit für das Verfahren,申请号DE2000601319-传众专利搜索

Verfahren zur Überwachung eines optischen Wellenleiters, Überwachungsvorrichtung und Überwachungseinheit für das Verfahren

申请公布号：DE60001319(D1)

申请号：DE2000601319

申请日期：2000.09.22

申请公布日期：2003.03.06

申请人：

ALCATEL, PARIS

发明人：BLONDEL, JEAN-PIERRE;BRADON, ERIC;LE ROUX, PATRICE;TOULLIER, DENIS

分类号：G01B11/30;G08C15/00;G08C15/02;G08C23/04;H04B10/08;H04B17/00;(IPC1-7):H04B10/08

主分类号：G01B11/30

摘要：The invention concerns a Method for monitoring an optical waveguide between a monitoring terminal point (5) and a monitoring unit (3), in which an optical data signal (10) from a transmitter (1), and for amplification, pump light from a pump laser (3), is emitted into the optical waveguide, wherein a monitoring signal (51) transmitted by the monitoring unit (3) is returned via the same waveguide to the monitoring unit (3) by a reflection device located at the monitoring terminal point (5), in particular a Bragg grating placed in the optical waveguide, and wherein the reflection device is tuned to a reflection that is exactly the wavelength of the monitoring signal (51), as well as a monitoring system and a monitoring unit (3) for said Method. <IMAGE>