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    Optical amplifier and related method
    1.
    发明公开
    Optical amplifier and related method 有权
    OptischerVerstärkerundzugehörigesVerfahren

    公开(公告)号：EP2947728A1

    公开(公告)日：2015-11-25

    申请号：EP14425061.0

    申请日：2014-05-23

    Applicant: Padtec S.A.

    Inventor： Meli, Fausto ,  Righetti, Aldo ,  Grasso, Giorgio

    IPC: H01S3/094 ,  H04B10/291 ,  H04B10/294

    CPC classification number: H01S3/06779 ,  H01S3/0064 ,  H01S3/06758 ,  H01S3/091 ,  H01S3/094011 ,  H01S3/094061 ,  H01S3/0941 ,  H01S3/1301 ,  H01S3/2308 ,  H01S2301/04 ,  H04B10/2912 ,  H04B10/294 ,  H04J14/0221 ,  H04Q11/0005 ,  H04Q2011/0013 ,  H04Q2011/0016

    Abstract: An optical amplifier (1), and a related optical amplification method, comprising an optical path (2) having an input end (3) and an output end (4), a first erbium doped optical fiber (5) placed along the optical path, a first gain flatting filter (6) placed along the optical path downstream the first erbium doped optical fiber, a second erbium doped optical fiber (7) placed along the optical path downstream the first gain flatting filter, a second gain flatting filter (8) placed along the optical path downstream the second erbium doped optical fiber, a third erbium doped optical fiber (9) placed along the optical path downstream the second gain flatting filter, and an optical pump (10) optically coupled to the optical path so as to optically pump at least the first and the third erbium doped optical fiber.

    Abstract translation: 一种光放大器（1）和相关的光放大方法，包括具有输入端（3）和输出端（4）的光路（2），沿光路放置的第一掺铒光纤（5） ，沿着第一掺铒光纤下游的光路放置的第一增益平坦化滤光器（6），沿着第一增益平坦化滤光器下游的光路放置的第二掺铒光纤（7），第二增益平坦化滤光器（8） ）沿着所述第二掺铒光纤下游的光路放置，沿着所述第二增益平坦化滤光器下游的光路放置的第三掺铒光纤（9）和光学泵（10），光学耦合到所述光路，以便 至少光学泵浦第一和第三掺铒光纤。

    Branching unit for an optical telecommunication link
    2.
    发明公开
    Branching unit for an optical telecommunication link 有权
    Verzweigungseinheitfüreine optische Telekommunikationsverbindung

    公开(公告)号：EP2874333A1

    公开(公告)日：2015-05-20

    申请号：EP13425147.9

    申请日：2013-11-14

    Applicant: Padtec S.A.

    Inventor： Androni, Daniele ,  Righetti, Aldo

    IPC: H04B10/80 ,  H04B3/44

    CPC classification number: H04B10/808 ,  H01H45/14 ,  H01H47/001 ,  H04B3/44 ,  H04B10/80

    Abstract: A branching unit (1) for an optical telecommunication link (100), the unit comprising a first (2), a second (3) and a third terminal (4) for termination of conductors of respective branch cables in use, a fourth terminal (5) for connection to a sea earth (6) in use, and a circuit (8) comprising a plurality of relays comprising at least a first, a second and a third relay associated to respectively the first, second and third terminal, the circuit being structured for connecting together two terminals out of the first, second and third terminal and for connecting the remaining terminal to the fourth terminal, depending on a sequence of power feeding at the first, second and third terminals, in use, wherein the circuit (8) comprises a sea earth circuit (9) terminated at one end to the fourth terminal and a bidirectional triode thyristor (13) placed along the sea earth circuit, a driving circuit (19) being provided for driving the bidirectional triode thyristor so as to trigger the bidirectional triode thyristor in a conduction state only upon complete switch-over of one relay of the group consisting in the first, second and third relay.

    Abstract translation: 一种用于光通信链路（100）的分支单元（1），所述单元包括用于终止在使用中的各个分支电缆的导体的第一（2），第二（3）和第三端子（4），第四端子 （5），用于连接到使用中的海洋地面（6），以及包括多个继电器的电路（8），所述电路包括至少第一，第二和第三继电器，所述继电器分别与所述第一，第二和第三端子相关联， 电路被构造成根据在使用中的第一，第二和第三端子处的供电顺序将第一，第二和第三端子中的两个端子连接在一起，并用于将剩余端子连接到第四端子，其中电路 （8）包括在一端连接到第四端子的海底电路（9）和沿着海洋电路放置的双向三极管晶闸管（13），驱动电路（19）用于驱动双向三极管晶闸管，以便 触发贱货 只有在由第一，第二和第三继电器组成的组中的一个继电器完成切换时，导通状态的三极三极管可控硅。

    Optical amplification stage for OTDR monitoring and related method and system for OTDR monitoring of an optical communication link
    5.
    发明公开
    Optical amplification stage for OTDR monitoring and related method and system for OTDR monitoring of an optical communication link 有权
    监控的光通信链路光时域反射计（OTDR）监测光学放大级，以及用于光时域反射计（OTDR）相关联的方法和系统

    公开(公告)号：EP2720387A1

    公开(公告)日：2014-04-16

    申请号：EP12188260.9

    申请日：2012-10-12

    Applicant: PADTEC S.A.

    Inventor： Melloni, Andrea ,  Meli, Fausto ,  Grasso, Giorgio ,  Righetti, Aldo

    IPC: H04B10/00

    CPC classification number: H04B10/071 ,  H04B10/2918

    Abstract: Optical amplification stage (1) for OTDR monitoring, comprising a first (2a) and a second optical signal path (2b), a first (3a) and a second optical amplifier (3b), a first optical coupler (4a) placed along the first optical signal path downstream the first optical amplifier, a second optical coupler (4b) placed along the second optical signal path downstream the second optical amplifier, an optical by-pass path (5) optically connecting the first and the second optical coupler, a first (11a) and a second optical reflector (11b) optically connected to respectively the first and second optical coupler, and an optical filter (10) placed along the optical by-pass path which has attenuation high on the whole WDM band and low at the OTDR wavelength(s).

    Abstract translation: 对于OTDR监测，包括：第一（2a）和一个第二光信号路径（2b）中，第一（3a）和第二光学放大器的光放大级（1）（3b）中，第一光学耦合器（4a）中沿着所述放置 第一光信号通路下游的第一光放大器，第二光耦合器（4b）的沿着所述第二光信号路径下游的第二光放大器的光学旁路通路（5），其光学连接第一和第二光学耦合器，置于 第一（11a）和沿所述光学旁路路径放置的第二光学反射器（11b）的光学连接至分别与第一和第二光学耦合器，和在光学过滤器（10），其具有衰减高整个WDM磁带上和低在 该OTDR波长（或多个）。

    Optical amplification stage for otdr monitoring and related method and system for otdr monitoring of an optical communication link
    7.
    发明公开
    Optical amplification stage for otdr monitoring and related method and system for otdr monitoring of an optical communication link 审中-公开
    监控的光通信链路光时域反射计（OTDR）监测光学放大级，以及用于光时域反射计（OTDR）相关联的方法和系统

    公开(公告)号：EP2685641A1

    公开(公告)日：2014-01-15

    申请号：EP12175914.6

    申请日：2012-07-11

    Applicant: PADTEC S.A.

    Inventor： Righetti, Aldo ,  Grasso, Giorgio ,  Meli, Fausto ,  Melloni, Andrea

    IPC: H04B10/07

    CPC classification number: H04B10/071

    Abstract: Optical amplification stage (1) for OTDR monitoring, comprising a first (2a) and a second optical signal path (2b), a first (3a) and a second optical amplifier (3b), a first optical coupler (4a) placed along the first optical signal path downstream the first optical amplifier, a second optical coupler (4b) placed along the second optical signal path downstream the second optical amplifier, an optical by-pass path (5) optically connecting the first and the second optical coupler, a first (11a) and a second optical reflector (11b) optically connected to respectively the first and second optical coupler, the first and second reflector being structured for reflecting respectively in a first (30) and second reflection band (31) comprising respectively a first and a second OTDR wavelength and not comprising the WDM band, wherein a first total loss is defined as the loss through the by-pass path and a second total loss is defined as the sum of the first total loss and the reflection loss, the difference of the second total loss to the first total loss at the first and second OTDR wavelengths being less than 10 dB.

    Abstract translation: 对于OTDR监测，包括：第一（2a）和一个第二光信号路径（2b）中，第一（3a）和第二光学放大器的光放大级（1）（3b）中，第一光学耦合器（4a）中沿着所述放置 第一光信号通路下游的第一光放大器，第二光耦合器（4b）的沿着所述第二光信号路径下游的第二光放大器的光学旁路通路（5），其光学连接第一和第二光学耦合器，置于 第一（11a）和第二光学反射器（11b）的光学连接至分别与第一和第二光学耦合器，所述第一和第二反射器被构造用于在第一（30）和第二反射带（31）分别反映分别包括第一 和第二波长OTDR和不包含所述WDM带，worin第一总损耗定义为通过所述旁通路径和第二总损耗的损失被定义为第一总损耗的总和和反射损耗，该 在第一和第二OTDR波长第二总损失到第一总损耗为小于10dB的差。

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