公开(公告)号：EP0499388A2

公开(公告)日：1992-08-19

申请号：EP92300840.3

申请日：1992-01-31

申请人： Hughes Aircraft Company

发明人： Hsu, Hai-Pin ,  Chesler, Ronald B. ,  Tangonan, Gregory L.

IPC分类号： H01S3/06 ,  H04B10/24

CPC分类号： H04B10/2912 ,  H01S3/06704 ,  H01S3/06754 ,  H01S3/06787 ,  H01S3/094003 ,  H01S3/0941 ,  H04B10/291 ,  H04B10/2971

摘要： A bidirectional optical fiber (12) amplifier suitable for use in a dual payout fiber-optic communication link (10) is disclosed herein. The inventive amplifier (12) is typically encasted in a shell or service loop, and is preferably connected between first and second optical fiber segments (18 and 20). The amplifier (12) includes a pump laser (102) for generating optical energy of a first wavelength. A wavelength selective optical coupler (82), in optical communication with the first fiber segment (18) and the pump laser (102), combines optical energy propagating through the first fiber segment (18) with the optical output of the pump laser (102). The amplifier (12) of the present invention further includes a doped optical fiber (114), optically connected between the wavelength selective optical coupler (82) and the second optical fiber segment (20), for amplifying optical energy within a predetermined wavelength spectrum passing therethrough. The inventive amplifier (12) may be advantageously employed within certain fiber-optic communication links in order to enhance optical signal strength.

摘要翻译： 本文公开了适用于双支付光纤通信链路（10）的双向光纤（12）放大器。 本发明的放大器（12）通常被加工成壳或服务回路，并且优选地连接在第一和第二光纤段（18和20）之间。 放大器（12）包括用于产生第一波长的光能的泵激光器（102）。 与第一光纤段（18）和泵激光器（102）光学通信的波长选择光耦合器（82）将通过第一光纤段（18）传播的光能与泵激光器（102）的光输出相结合 ）。 本发明的放大器（12）还包括光学连接在波长选择光耦合器（82）和第二光纤段（20）之间的掺杂光纤（114），用于放大经过预定波长光谱的光能 穿过。 本发明的放大器（12）可有利地用于某些光纤通信链路中，以便增强光信号强度。

公开(公告)号：EP0474426A3

公开(公告)日：1992-06-17

申请号：EP91307862.2

申请日：1991-08-28

申请人： AT&T Corp.

发明人： Bergmann, Ernest Eisenhardt

IPC分类号： G02B6/28 ,  H04B10/20 ,  H01S3/06

CPC分类号： H01S3/06754 ,  G02B6/2804 ,  H01S3/06787

摘要： An MxN optical star coupler is disclosed which utilizes fiber amplifier technology to provide amplification of message signals. The input signals to the star comprise at least one message signal (S) and at least one pump signal (P₁ -P M-1 ). The message signals and pump signals combine in an amplifier coupling region (16) to form as an output the amplified message signals (A₁-A N ). The amplified message signals are then coupled into the plurality of N output waveguides (18₁-18 N ). In one embodiment, a plurality of fiber amplifiers are coupled in a one-to-one relationship to the plurality of output waveguides. Since the amplifier is reciprocal in nature, the star may be utilized as a bidirectional device. The couplers may also be connected together to form a cascaded arrangement capable of providing re-amplification of the message signals.

公开(公告)号：EP0474426A2

公开(公告)日：1992-03-11

申请号：EP91307862.2

申请日：1991-08-28

申请人： AT&T Corp.

发明人： Bergmann, Ernest Eisenhardt

IPC分类号： G02B6/28 ,  H04B10/20 ,  H01S3/06

CPC分类号： H01S3/06754 ,  G02B6/2804 ,  H01S3/06787

摘要： An MxN optical star coupler is disclosed which utilizes fiber amplifier technology to provide amplification of message signals. The input signals to the star comprise at least one message signal (S) and at least one pump signal (P₁ -P M-1 ). The message signals and pump signals combine in an amplifier coupling region (16) to form as an output the amplified message signals (A₁-A N ). The amplified message signals are then coupled into the plurality of N output waveguides (18₁-18 N ). In one embodiment, a plurality of fiber amplifiers are coupled in a one-to-one relationship to the plurality of output waveguides. Since the amplifier is reciprocal in nature, the star may be utilized as a bidirectional device. The couplers may also be connected together to form a cascaded arrangement capable of providing re-amplification of the message signals.

摘要翻译： 公开了一种使用光纤放大器技术来提供消息信号放大的MxN光学星形耦合器。 到星形的输入信号包括至少一个消息信号（S）和至少一个泵浦信号（P1-M-1）。 消息信号和泵浦信号在放大器耦合区域（16）中组合以形成放大的消息信号（A1-AN）的输出。 放大的消息信号然后被耦合到多个N个输出波导（181-18N）中。 在一个实施例中，多个光纤放大器以一对一关系耦合到多个输出波导。 由于放大器本质上是互逆的，星星可以用作双向器件。 耦合器还可以连接在一起以形成能够提供消息信号的重新放大的级联布置。

公开(公告)号：EP0415438A2

公开(公告)日：1991-03-06

申请号：EP90116755.1

申请日：1990-08-31

申请人： FUJITSU LIMITED

发明人： Suyama, Masuo

IPC分类号： H04B10/16

CPC分类号： H04B10/291 ,  H01S3/06787 ,  H01S3/1301 ,  H04B10/0777 ,  H04B10/2503 ,  H04B10/2912 ,  H04B10/2918 ,  H04B10/2931 ,  H04B2210/074

摘要： An optical communication system in which transmission of information with a pumping light beam acting as the carrier, in addition to transmission of information with a signal light beam, is made possible is disclosed. This optical communication system includes an optical fiber amplifier (24) adapted to amplify a signal light beam by having the signal light beam and a pumping light beam propagated through its rare-earth-­doped fiber (28) doped with a rare earth element and a modulating circuit (48) for modulating the pumping light beam with a high-frequency modulating signal having a period shorter than the life span of fluorescence resulting from an excited state. In the case where the signal light beam and the pumping light beam are propagated in the same direction through the rare-earth-doped fiber, the transmission of information with the pumping light beam acting as the carrier can constitute a transmission of supervisory signal for an optical repeater, and in the case where the signal light beam and the pumping light beam are propagated in the directions opposite to each other through the rare-earth-doped fiber, a two-way transmission can be achieved by the transmission of information with the signal light beam and the transmission of information with the pumping light beam.

摘要翻译： 公开了一种光通信系统，其中除了具有信号光束的信息传输之外，还可以使用作为载波的泵浦光束的信息传输。 该光通信系统包括光纤放大器（24），其适于通过使信号光束和通过掺杂有稀土元素的稀土掺杂光纤（28）传播的泵浦光束来放大信号光束，以及 调制电路（48），用于通过具有比由激发态产生的荧光寿命短的周期的高频调制信号调制泵浦光束。 在信号光束和泵浦光束通过稀土掺杂光纤在相同方向上传播的情况下，以作为载波的泵浦光束的信息的传输可以构成用于 光中继器，并且在信号光束和泵浦光束通过稀土掺杂光纤在彼此相反的方向上传播的情况下，可以通过传输信息来实现双向传输 信号光束和信号与泵浦光束的传输。

公开(公告)号：EP0143561B1

公开(公告)日：1990-03-21

申请号：EP84307527.6

申请日：1984-11-02

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： Shaw, Herbert John ,  Digonnet, Michel J. F.

IPC分类号： H01S3/06 ,  H01S3/091 ,  G02B6/26

CPC分类号： H04B10/2912 ,  H01S3/06787 ,  H01S3/094003 ,  H01S3/094011 ,  H04B10/291