公开(公告)号：EP1115184A2

公开(公告)日：2001-07-11

申请号：EP00811210.4

申请日：2000-12-20

申请人： JDS Uniphase Inc.

发明人： Nyman, Bruce

IPC分类号： H01S3/067 ,  H01S3/30 ,  H01S3/23

CPC分类号： H01S3/302 ,  H01S3/06754 ,  H01S3/1608 ,  H01S3/2375 ,  H01S2301/04

摘要： A three-stage optical amplifier is disclosed having a first pre-amplifying stage for receiving an optical signal to be amplified and having a length of erbium doped fibre and a pump for providing energy to the erbium doped fibre. A second-stage is optically coupled to receive the optical signal from the first-stage after the optical signal has been pre-amplified. The second-stage a Raman amplifier has a length of standard or DCF optical fibre and a Raman pump for providing energy to the length of optical fibre for further amplifying the pre-amplified signal propagating therethrough and for controlling tilt of the amplified signal. A third stage EDFA for further amplifying the signal amplified by the Raman amplifier. Conveniently, the Raman stage is useful for both amplifying and providing tilt control.

摘要翻译： 公开了一种三级光放大器，其具有第一预放大级，用于接收待放大的光信号并具有一长度的掺铒光纤，以及用于向掺铒光纤提供能量的泵。 第二级光耦合以在光信号被预放大之后从第一级接收光信号。 第二级拉曼放大器具有标准或DCF光纤的长度和用于向光纤长度提供能量的拉曼泵，用于进一步放大通过其传播的预放大信号并控制放大信号的倾斜。 第三级EDFA，用于进一步放大由拉曼放大器放大的信号。 方便地，拉曼级可用于放大和提供倾斜控制。

公开(公告)号：EP1128502A3

公开(公告)日：2004-04-28

申请号：EP00310661.4

申请日：2000-11-30

申请人： JDS Uniphase Inc.

发明人： Nyman, Bruce ,  Duck, Gary S. ,  Teitelbaum, Neil

IPC分类号： H01S3/06 ,  H01S3/094 ,  H04B10/17

CPC分类号： H01S3/0602 ,  H01S3/061 ,  H01S3/063 ,  H01S3/06708 ,  H01S3/06754 ,  H01S3/094 ,  H01S3/1608

摘要： The present invention relates to an in-line optical amplifier that can be coupled to optical fibre, wherein the amplifying medium (22;44) has a substantially larger mode field than the optical fibre (20) to which it is coupled. The present invention has realized a design to utilize a very high power pump launching a multimoded signal having approximately 1W of pump power into a block (22;44) of erbium doped glass having a mode field diameter orders of magnitude larger than the mode field diameter of erbium doped fibre. By using a block of glass having a rare earth therein, packaging, temperature stabilizing and temperature tuning of the amplifier also become practicable. Furthermore, a cylindrical block of glass having planar ends, lends itself to applying coatings or filters (52;54) thereto, thereby forming selective filters at ends of the erbium doped block to allow the pump light in, and the signal light in at opposite ends, while preventing light at the pump wavelength to propagate out with the amplified signal.

公开(公告)号：EP1059746A2

公开(公告)日：2000-12-13

申请号：EP00810494.5

申请日：2000-06-07

申请人： JDS Uniphase Inc.

发明人： Zimmerman, Donald ,  Nyman, Bruce

IPC分类号： H04B10/17 ,  H04B10/08 ,  H01S3/067

CPC分类号： H04B10/2931 ,  H01S3/094003 ,  H04B10/077 ,  H04B10/07955

摘要： An optical amplifier for amplifying an optical signal is disclosed wherein a four port coupler provides multi-functionality. A pump light source is coupled to a first port, a transmission signal to be amplified is coupled to a second port, a multiplexed signal is received on the third port and a monitor signal is provided on the fourth port for monitoring one of the pump or transmission signal. Conveniently a detector is optically coupled with the fourth port to provide a feedback signal.

摘要翻译： 公开了一种用于放大光信号的光放大器，其中四端耦合器提供多功能。 泵浦光源耦合到第一端口，待放大的传输信号耦合到第二端口，多路复用信号被接收在第三端口上，并且在第四端口上提供监视信号，用于监视泵中的一个或 传输信号。 方便地，检测器与第四端口光学耦合以提供反馈信号。

公开(公告)号：EP1128502A2

公开(公告)日：2001-08-29

申请号：EP00310661.4

申请日：2000-11-30

申请人： JDS Uniphase Inc.

发明人： Nyman, Bruce ,  Duck, Gary S. ,  Teitelbaum, Neil

IPC分类号： H01S3/06 ,  H01S3/094 ,  H04B10/17

CPC分类号： H01S3/0602 ,  H01S3/061 ,  H01S3/063 ,  H01S3/06708 ,  H01S3/06754 ,  H01S3/094 ,  H01S3/1608

摘要： The present invention relates to an in-line optical amplifier that can be coupled to optical fibre, wherein the amplifying medium (22;44) has a substantially larger mode field than the optical fibre (20) to which it is coupled. The present invention has realized a design to utilize a very high power pump launching a multimoded signal having approximately 1W of pump power into a block (22;44) of erbium doped glass having a mode field diameter orders of magnitude larger than the mode field diameter of erbium doped fibre. By using a block of glass having a rare earth therein, packaging, temperature stabilizing and temperature tuning of the amplifier also become practicable. Furthermore, a cylindrical block of glass having planar ends, lends itself to applying coatings or filters (52;54) thereto, thereby forming selective filters at ends of the erbium doped block to allow the pump light in, and the signal light in at opposite ends, while preventing light at the pump wavelength to propagate out with the amplified signal.

摘要翻译： 本发明涉及一种可以耦合到光纤的直列光放大器，其中放大介质（22; 44）具有比与其耦合的光纤（20）大得多的模场。 本发明实现了一种设计，以利用非常高的功率泵将具有大约1W的泵浦功率的多模信号发射到掺铒玻璃的块（22; 44）中，其具有大于模场直径的模场直径数量级 的掺铒光纤。 通过使用其中具有稀土的玻璃块，放大器的封装，温度稳定和温度调谐也变得可行。 此外，具有平面端的圆柱形玻璃块，其自身适用于向其施加涂层或过滤器（52; 54），从而在掺铒块的端部处形成选择性滤光片以允许泵浦光入射，并且信号光在相反的方向 同时防止泵浦波长的光利用放大的信号传播出去。