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1. 发明公开

EP2052476A1 VERFAHREN UND ANORDNUNGEN ZUR VERBESSERUNG DER SIGNALQUALITÄT 有权
标题翻译：方法和安排改善信号质量
公开(公告)号：EP2052476A1
公开(公告)日：2009-04-29
申请号：EP07802375.1
申请日：2007-07-11
申请人： Nokia Siemens Networks GmbH & Co. KG
发明人： RASZTOVITS-WIECH, Michael
IPC分类号： H04B10/158
CPC分类号： H04J14/0226 , H04B10/66 , H04J14/02 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04Q11/0066 , H04Q11/0067
摘要： The invention relates to a bandpass filter (OFI) which is mounted downstream of an optical amplifier (OV) and allows noise to be largely reduced. In order for said bandpass filter to be able to optimally receive burst signals (BS1, BS2,..., BSN) transmitted by several user devices (ONT1, ONT2,..., ONTN) also in a central node (OLT), the bandpass filter is set to the respective received carrier frequencies (TF1 to TFN). Because of time constraints, this is possible only if the carrier frequencies (TF1,...) or associated filter setting values (FE1,...) have already been stored and the bandpass filter is preset.

2. 发明公开

EP1994659A1 BIDIREKTIONALE OPTISCHE VERSTÄRKERANORDNUNG 有权转让
标题翻译： BIDIREKTIONALE OPTISCHEVERSTÄRKERANORDNUNG
公开(公告)号：EP1994659A1
公开(公告)日：2008-11-26
申请号：EP07704642.3
申请日：2007-02-19
申请人： Nokia Siemens Networks GmbH & Co. KG
发明人： GIANORDOLI, Stefan , RAPP, Lutz , RASZTOVITS-WIECH, Michael , STADLER, Andreas
IPC分类号： H04B10/16 , H04B10/17 , H04J14/02
CPC分类号： H04J14/02 , H04B10/29 , H04B10/2972
摘要： The invention relates to a bidirectional optical amplifier array (VA) which is preferably used in a passive optical network (PON) system, is disposed between a first line termination (OLT) and a second line termination (ONU), and is penetrated by an optical downstream signal (OSD) in one direction and an optical upstream signal (OSD) in the opposite direction. Said optical amplifier array is composed of a first part with two branching and combining units (D1 and D2), a unidirectional optical amplifier (E1), and a transponder (T) in which the optical downstream signals and upstream signals (OSU and OSD) are separately amplified. The two signals (OSU and OSD) that run in opposite directions are amplified in a bidirectional amplifier (E2) in a second part. A constant gain is maintained in the bidirectional optical amplifier (E2) by means of the continuous downstream signal (OSD) such that the amplifier can be operated in stable conditions for the upstream signal (OSU) regardless of occurring bursts. In another embodiment, a splitter (S1) is integrated into the inventive amplifier array (VA).
摘要翻译：本发明涉及一种优选用于无源光网络（PON）系统的双向光放大器阵列（VA），设置在第一线路终端（OLT）和第二线路终端（ONU）之间，并被在一个方向上的光学下行信号（OSD）和相反方向的光学上行信号（OSD）。所述光放大器阵列由具有两个分支和组合单元（D1和D2），单向光放大器（E1）和应答器（T）的第一部分组成，其中光下行信号和上行信号（OSU和OSD）分别放大。在相反方向运行的两个信号（OSU和OSD）在第二部分的双向放大器（E2）中被放大。通过连续下行信号（OSD）在双向光放大器（E2）中保持恒定的增益，使得放大器可以在上行信号（OSU）的稳定条件下操作，而不管发生突发。在另一个实施例中，分离器（S1）被集成到本发明的放大器阵列（VA）中。

3. 发明授权

EP2052476B1 VERFAHREN UND ANORDNUNGEN ZUR VERBESSERUNG DER SIGNALQUALITÄT 有权
标题翻译：方法和安排改善信号质量
公开(公告)号：EP2052476B1
公开(公告)日：2010-05-19
申请号：EP07802375.1
申请日：2007-07-11
申请人： Nokia Siemens Networks GmbH & Co. KG
发明人： RASZTOVITS-WIECH, Michael
IPC分类号： H04B10/158
CPC分类号： H04J14/0226 , H04B10/66 , H04J14/02 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04Q11/0066 , H04Q11/0067
摘要： The invention relates to a bandpass filter (OFI) which is mounted downstream of an optical amplifier (OV) and allows noise to be largely reduced. In order for said bandpass filter to be able to optimally receive burst signals (BS1, BS2,..., BSN) transmitted by several user devices (ONT1, ONT2,..., ONTN) also in a central node (OLT), the bandpass filter is set to the respective received carrier frequencies (TF1 to TFN). Because of time constraints, this is possible only if the carrier frequencies (TF1,...) or associated filter setting values (FE1,...) have already been stored and the bandpass filter is preset.

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