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公开(公告)号：US07792430B2
公开(公告)日：2010-09-07
申请号：US12081781
申请日：2008-04-21
IPC分类号： H04B10/08
CPC分类号： H04B10/03 , H04B10/0771 , H04B2210/074 , H04B2210/075 , H04B2210/077 , H04B2210/078 , H04B2210/08
摘要： The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed. According to the result of the continuity detection, the power state at the occurrence of line fault is automatically restored to the power state at a time of normal operation.
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公开(公告)号：US20080317461A1
公开(公告)日：2008-12-25
申请号：US12081780
申请日：2008-04-21
IPC分类号： H04B10/00
CPC分类号： H04B10/03 , H04B10/0771 , H04B2210/074 , H04B2210/075 , H04B2210/077 , H04B2210/078 , H04B2210/08
摘要： The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed. According to the result of the continuity detection, the power state at the occurrence of line fault is automatically restored to the power state at a time of normal operation.
摘要翻译： 本发明提供了一种自动电力恢复方法，即使在包括光传输路径上的光放大介质的结构和使用该方法的光通信系统中，也能够可靠地检测线路故障的溶解，恢复光功率的连续性 。 为此，在应用本发明的自动电力恢复方法的光通信系统中，具有低传输速率的导频信号，其波长是基于通过组合丢失波长特性而获得的损耗波长特性来设置的 用于光传输路径的光纤和光传输路径上的光放大介质的损耗波长特性在线路故障发生时在光发送站和光接收站之间被发送和接收，因此连续性的检测因此 执行。 根据连续性检测的结果，发生线路故障时的电源状态在正常运行时自动恢复到电源状态。
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公开(公告)号：US07437069B2
公开(公告)日：2008-10-14
申请号：US10793665
申请日：2004-03-05
IPC分类号： H04J14/02
CPC分类号： H04B10/03 , H04B10/0771 , H04B2210/074 , H04B2210/075 , H04B2210/077 , H04B2210/078 , H04B2210/08
摘要： The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed. According to the result of the continuity detection, the power state at the occurrence of line fault is automatically restored to the power state at a time of normal operation.
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公开(公告)号：US07664392B2
公开(公告)日：2010-02-16
申请号：US12081780
申请日：2008-04-21
IPC分类号： H04B10/08
CPC分类号： H04B10/03 , H04B10/0771 , H04B2210/074 , H04B2210/075 , H04B2210/077 , H04B2210/078 , H04B2210/08
摘要： The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed. According to the result of the continuity detection, the power state at the occurrence of line fault is automatically restored to the power state at a time of normal operation.
摘要翻译： 本发明提供了一种自动电力恢复方法，即使在包括光传输路径上的光放大介质的结构和使用该方法的光通信系统中，也能够可靠地检测线路故障的溶解，恢复光功率的连续性 。 为此，在应用本发明的自动电力恢复方法的光通信系统中，具有低传输速率的导频信号，其波长是基于通过组合丢失波长特性而获得的损耗波长特性来设置的 用于光传输路径的光纤和光传输路径上的光放大介质的损耗波长特性在线路故障发生时在光发送站和光接收站之间被发送和接收，因此连续性的检测因此 执行。 根据连续性检测的结果，发生线路故障时的电源状态在正常运行时自动恢复到电源状态。
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公开(公告)号：US20090175616A1
公开(公告)日：2009-07-09
申请号：US12081781
申请日：2008-04-21
CPC分类号： H04B10/03 , H04B10/0771 , H04B2210/074 , H04B2210/075 , H04B2210/077 , H04B2210/078 , H04B2210/08
摘要： The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed. According to the result of the continuity detection, the power state at the occurrence of line fault is automatically restored to the power state at a time of normal operation.
摘要翻译： 本发明提供了一种自动电力恢复方法，即使在包括光传输路径上的光放大介质的结构和使用该方法的光通信系统中，也能够可靠地检测线路故障的溶解，恢复光功率的连续性 。 为此，在应用本发明的自动电力恢复方法的光通信系统中，具有低传输速率的导频信号，其波长是基于通过组合丢失波长特性而获得的损耗波长特性来设置的 用于光传输路径的光纤和光传输路径上的光放大介质的损耗波长特性在线路故障发生时在光发送站和光接收站之间被发送和接收，因此连续性的检测因此 执行。 根据连续性检测的结果，发生线路故障时的电源状态在正常运行时自动恢复到电源状态。
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公开(公告)号：US20070183785A1
公开(公告)日：2007-08-09
申请号：US11783047
申请日：2007-04-05
IPC分类号： H04B10/00
CPC分类号： H04B10/2916 , H04B10/071
摘要： In a method for performing OTDR measurement in an optical transmission system including a first terminal station and a second terminal station, OTDR signal light is transmitted from an OTDR provided in the first terminal station to the second terminal station, in which the OTDR signal light is Raman amplified by using main signal light of the optical transmission system as pump light.
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公开(公告)号：US07215415B2
公开(公告)日：2007-05-08
申请号：US10798899
申请日：2004-03-12
IPC分类号： G01N21/00
CPC分类号： H04B10/2916 , H04B10/071
摘要： In a method for performing OTDR measurement in an optical transmission system including a first terminal station and a second terminal station, OTDR signal light is transmitted from an OTDR provided in the first terminal station to the second terminal station, in which the OTDR signal light is Raman amplified by using main signal light of the optical transmission system as pump light.
摘要翻译： 在包括第一终端站和第二终端站的光传输系统中进行OTDR测量的方法中，OTDR信号光从在第一终端站提供的OTDR发送到第二终端站，OTDR信号光是 通过使用光传输系统的主信号灯作为泵浦光放大拉曼。
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公开(公告)号：US20050110980A1
公开(公告)日：2005-05-26
申请号：US10798899
申请日：2004-03-12
IPC分类号： G01M11/02 , H04B10/00 , H04B10/07 , H04B10/071 , H04B10/077 , H04B17/00 , H04J14/00 , H04J14/02 , G01N21/00
CPC分类号： H04B10/2916 , H04B10/071
摘要： In a method for performing OTDR measurement in an optical transmission system including a first terminal station and a second terminal station, OTDR signal light is transmitted from an OTDR provided in the first terminal station to the second terminal station, in which the OTDR signal light is Raman amplified by using main signal light of the optical transmission system as pump light.
摘要翻译： 在包括第一终端站和第二终端站的光传输系统中进行OTDR测量的方法中，OTDR信号光从在第一终端站提供的OTDR发送到第二终端站，OTDR信号光是 通过使用光传输系统的主信号灯作为泵浦光放大拉曼。
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公开(公告)号：US07420666B2
公开(公告)日：2008-09-02
申请号：US11783047
申请日：2007-04-05
IPC分类号： G01N21/00
CPC分类号： H04B10/2916 , H04B10/071
摘要： In a method for performing OTDR measurement in an optical transmission system including a first terminal station and a second terminal station, OTDR signal light is transmitted from an OTDR provided in the first terminal station to the second terminal station, in which the OTDR signal light is Raman amplified by using main signal light of the optical transmission system as pump light.
摘要翻译： 在包括第一终端站和第二终端站的光传输系统中进行OTDR测量的方法中，OTDR信号光从在第一终端站提供的OTDR发送到第二终端站，OTDR信号光是 通过使用光传输系统的主信号灯作为泵浦光放大拉曼。
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公开(公告)号：US5838476A
公开(公告)日：1998-11-17
申请号：US541788
申请日：1995-10-10
IPC分类号： H01S3/10 , H01S3/13 , H04B10/07 , H04B10/079 , H04B10/25 , H04B10/2507 , H04B10/293 , H04B10/02 , H04B10/00
CPC分类号： H04B10/2931 , H01S3/1301 , H04B10/077 , H04B10/07955 , H04B10/2912 , H01S3/10015
摘要： An input monitoring system is provided in an optical amplifying repeater to monitor a level of an optical input signal. A monitored level of the optical input signal is used to detect a fault on an optical transmission path or to control a bias current for a laser diode which emits and supplies an exciting signal for exciting an optical fiber amplifier. To accurately monitor a level of the optical input signal, the input monitoring system comprises an input terminal supplied with the optical input signal, an optical fiber amplifier for amplifying the optical input signal, a first photo diode for detecting and outputting an electric signal corresponding a level of the optical input signal, and an optical switch operatively connected to the input terminal, the optical fiber amplifier and first photo diode for switching the optical input signal alternatively into the optical fiber amplifier and the first photo diode.
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