公开(公告)号：US20090201576A1

公开(公告)日：2009-08-13

申请号：US12370556

申请日：2009-02-12

Applicant: Maxim BOLSHTYANSKY ,  Gregory Cowle ,  Barrie Keyworth ,  Peter David Roorda

Inventor： Maxim BOLSHTYANSKY ,  Gregory Cowle ,  Barrie Keyworth ,  Peter David Roorda

IPC: H01S3/0941

CPC classification number: H01S3/06754 ,  H01S3/06758 ,  H01S3/1305 ,  H01S3/2383 ,  H01S2301/04

Abstract: A fiber amplifier having two erbium doped fiber coils and a pump laser diode optically coupled, through a fiber array, to a planar lightwave circuit, is described. A photodetector array, a multiport free-space optical isolator, and a strip of thin-film gain flattening filter are attached to a side surface of the planar lightwave circuit, which has a tunable optical power splitter for variably splitting the optical pump power for the laser diode between the two erbium doped fiber coils, and variable tilters for correcting the gain tilt of the amplifier. The variable splitter and the tilters are thermally tunable Mach-Zehnder interferometers.

Abstract translation: 描述了具有两个掺铒光纤线圈的光纤放大器和通过光纤阵列光学耦合到平面光波电路的泵激光二极管。 光电检测器阵列，多端口自由空间光隔离器和薄膜增益平坦化滤光器条附接到平面光波电路的侧表面，该平面光波电路具有可调谐光功率分配器，用于将光泵浦功率可变地分离 两个掺铒光纤线圈之间的激光二极管，以及用于校正放大器的增益倾斜的可变倾角。 可变分流器和倾斜器是热可调谐的马赫 - 曾德尔干涉仪。

公开(公告)号：US08699125B2

公开(公告)日：2014-04-15

申请号：US12899402

申请日：2010-10-06

Applicant: Maxim Bolshtyansky ,  Gregory Cowle

Inventor： Maxim Bolshtyansky ,  Gregory Cowle

IPC: H01S3/091

CPC classification number: H01S3/06754 ,  H01S3/06758 ,  H01S3/1305 ,  H01S3/2383 ,  H01S2301/04

Abstract: A reconfigurable optical amplifier is formed of a plurality of optical switches and a plurality of fiber amplifier sections to provide a switchable amplifying network. A variable pump splitter provides pump light from an optical pump source to two or more fiber amplifier sections. The optical switches and variable pump splitters are formed in a planar lightwave circuit, which may further include pump WDM combiners, variable optical attenuators, tap couplers and other optical components, and to which monitoring photodiodes and the fiber amplifier sections are coupled. A same PLC can be used for a wide variety of reconfigurable optical amplifiers.

Abstract translation: 可重构光放大器由多个光开关和多个光纤放大器部分组成，以提供可切换放大网络。 可变泵分离器将来自光泵浦源的泵浦光提供给两个或更多个光纤放大器部分。 光开关和可变泵分离器形成在平面光波电路中，其可以进一步包括泵浦WDM组合器，可变光衰减器，抽头耦合器和其它光学部件，并且监控光电二极管和光纤放大器部分耦合到该光开关。 相同的PLC可用于各种可重新配置的光放大器。

公开(公告)号：US20120327506A1

公开(公告)日：2012-12-27

申请号：US13533878

申请日：2012-06-26

Applicant: Maxim BOLSHTYANSKY ,  Gregory Cowle

Inventor： Maxim BOLSHTYANSKY ,  Gregory Cowle

IPC: H01S5/04

CPC classification number: H01S3/06754 ,  H01S3/06758 ,  H01S3/1305 ,  H01S3/2383 ,  H01S2301/04

Abstract: An optical amplifier having two erbium doped fiber coils and a pump laser diode is described. A tunable optical power splitter is used for variably splitting the optical pump power for the laser diode between the two erbium doped fiber coils, and variable tilters can be used for correcting the gain tilt of the amplifier. The variable splitter and the tilters can include thermally tunable Mach-Zehnder interferometers.

Abstract translation: 描述了具有两个掺铒光纤线圈和泵激光二极管的光放大器。 可调谐光功率分配器用于可变地分离两个掺铒光纤线圈之间的激光二极管的光泵浦功率，并且可变倾斜可用于校正放大器的增益倾斜。 可变分流器和倾斜器可以包括热可调谐的马赫 - 曾德尔干涉仪。

公开(公告)号：US08233214B2

公开(公告)日：2012-07-31

申请号：US12370556

申请日：2009-02-12

Applicant: Maxim Bolshtyansky ,  Gregory Cowle ,  Barrie Keyworth ,  Peter David Roorda

Inventor： Maxim Bolshtyansky ,  Gregory Cowle ,  Barrie Keyworth ,  Peter David Roorda

IPC: H01S3/00

CPC classification number: H01S3/06754 ,  H01S3/06758 ,  H01S3/1305 ,  H01S3/2383 ,  H01S2301/04

Abstract: A fiber amplifier having two erbium doped fiber coils and a pump laser diode optically coupled, through a fiber array, to a planar lightwave circuit, is described. A photodetector array, a multiport free-space optical isolator, and a strip of thin-film gain flattening filter are attached to a side surface of the planar lightwave circuit, which has a tunable optical power splitter for variably splitting the optical pump power for the laser diode between the two erbium doped fiber coils, and variable tilters for correcting the gain tilt of the amplifier. The variable splitter and the tilters are thermally tunable Mach-Zehnder interferometers.

Abstract translation: 描述了具有两个掺铒光纤线圈的光纤放大器和通过光纤阵列光学耦合到平面光波电路的泵激光二极管。 光电检测器阵列，多端口自由空间光隔离器和薄膜增益平坦化滤光器条附接到平面光波电路的侧表面，该平面光波电路具有可调谐光功率分配器，用于将光泵浦功率可变地分离 两个掺铒光纤线圈之间的激光二极管，以及用于校正放大器的增益倾斜的可变倾角。 可变分流器和倾斜器是热可调谐的马赫 - 曾德尔干涉仪。

公开(公告)号：US08995048B2

公开(公告)日：2015-03-31

申请号：US13113059

申请日：2011-05-22

Applicant: Maxim Bolshtyansky ,  Gregory Cowle

Inventor： Maxim Bolshtyansky ,  Gregory Cowle

IPC: H01S3/23 ,  H01S3/30 ,  H01S3/13 ,  H04B10/296 ,  H01S3/067 ,  H01S3/10

CPC classification number: H01S3/1301 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/2375 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/296

Abstract: A change in loading conditions of fiber amplifiers in an optical communications network causes rapid variations in the gain profile of the amplifiers due to spectral hole burning and stimulated Raman scattering. An apparatus for reducing such gain profile variations is described which monitors optical signal perturbations and reacts by adjusting pump powers of the amplifiers and, or fast variable optical attenuator according to a pre-determined function stored in the form of constants in controller's memory. The optical signal is monitored as total power, and the power of light after passing through one or more optical filters. The light detection is relatively fast, whereby the gain profile variations are compensated by fast controlled variable optical attenuator and pump power adjustment upon the change in loading conditions.

Abstract translation: 光通信网络中的光纤放大器的负载条件的变化由于光谱空穴燃烧和受激拉曼散射而导致放大器的增益曲线的快速变化。 描述了一种用于减小这种增益分布变化的装置，其监视光信号扰动并通过根据在控制器存储器中的常数形式存储的预定函数来调整放大器的泵浦功率和快速可变光衰减器来进行反应。 光信号作为总功率被监测，并且通过一个或多个滤光器后的光功率。 光检测相对较快，从而通过快速控制的可变光衰减器和负载条件变化时的泵浦功率调整来补偿增益曲线变化。

公开(公告)号：US20090091819A1

公开(公告)日：2009-04-09

申请号：US12235041

申请日：2008-09-22

Applicant: Maxim Bolshtyansky ,  Gregory Cowle

Inventor： Maxim Bolshtyansky ,  Gregory Cowle

IPC: H01S3/30 ,  H01S3/067

CPC classification number: H01S3/1301 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/2375 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/296

Abstract: A change in loading conditions of fiber amplifiers in an optical communications network causes rapid variations in the gain profile of the amplifiers due to spectral hole burning and stimulated Raman scattering. An apparatus for reducing such gain profile variations is described which monitors optical signal perturbations and reacts by adjusting pump powers of the amplifiers and, or fast variable optical attenuator according to a predetermined function stored in the form of constants in controller's memory. The optical signal is monitored as total power, and the power of light after passing through one or more optical filters. The light detection is relatively fast, whereby the gain profile variations are compensated by fast controlled variable optical attenuator and pump power adjustment upon the change in loading conditions.

Abstract translation: 光通信网络中的光纤放大器的负载条件的变化由于光谱空穴燃烧和受激拉曼散射而导致放大器的增益曲线的快速变化。 描述了一种用于减小这种增益分布变化的装置，其监视光信号扰动并通过根据以控制器存储器中的常数形式存储的预定函数来调节放大器的泵浦功率和快速可变光衰减器来进行反应。 光信号作为总功率被监测，并且通过一个或多个滤光器后的光功率。 光检测相对较快，从而通过快速控制的可变光衰减器和负载条件变化时的泵浦功率调整来补偿增益曲线变化。

公开(公告)号：US08462430B2

公开(公告)日：2013-06-11

申请号：US13533878

申请日：2012-06-26

Applicant: Maxim Bolshtyansky ,  Gregory Cowle

Inventor： Maxim Bolshtyansky ,  Gregory Cowle

IPC: H01S3/00

CPC classification number: H01S3/06754 ,  H01S3/06758 ,  H01S3/1305 ,  H01S3/2383 ,  H01S2301/04

Abstract: An optical amplifier having two erbium doped fiber coils and a pump laser diode is described. A tunable optical power splitter is used for variably splitting the optical pump power for the laser diode between the two erbium doped fiber coils, and variable tilters can be used for correcting the gain tilt of the amplifier. The variable splitter and the tilters can include thermally tunable Mach-Zehnder interferometers.

Abstract translation: 描述了具有两个掺铒光纤线圈和泵激光二极管的光放大器。 可调谐光功率分配器用于可变地分离两个掺铒光纤线圈之间的激光二极管的光泵浦功率，并且可变倾斜可用于校正放大器的增益倾斜。 可变分流器和倾斜器可以包括热可调谐的马赫 - 曾德尔干涉仪。

公开(公告)号：US20110292497A1

公开(公告)日：2011-12-01

申请号：US13113059

申请日：2011-05-22

Applicant: Maxim Bolshtyansky ,  Gregory Cowle

Inventor： Maxim Bolshtyansky ,  Gregory Cowle

IPC: H01S3/30 ,  H04B10/12

CPC classification number: H01S3/1301 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/2375 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/296

Abstract: A change in loading conditions of fiber amplifiers in an optical communications network causes rapid variations in the gain profile of the amplifiers due to spectral hole burning and stimulated Raman scattering. An apparatus for reducing such gain profile variations is described which monitors optical signal perturbations and reacts by adjusting pump powers of the amplifiers and, or fast variable optical attenuator according to a pre-determined function stored in the form of constants in controller's memory. The optical signal is monitored as total power, and the power of light after passing through one or more optical filters. The light detection is relatively fast, whereby the gain profile variations are compensated by fast controlled variable optical attenuator and pump power adjustment upon the change in loading conditions.

Abstract translation: 光通信网络中的光纤放大器的负载条件的变化由于光谱空穴燃烧和受激拉曼散射而导致放大器的增益曲线的快速变化。 描述了一种用于减小这种增益分布变化的装置，其监视光信号扰动并通过根据在控制器存储器中的常数形式存储的预定函数来调整放大器的泵浦功率和快速可变光衰减器来进行反应。 光信号作为总功率被监测，并且通过一个或多个滤光器后的光功率。 光检测相对较快，从而通过快速控制的可变光衰减器和负载条件变化时的泵浦功率调整来补偿增益曲线变化。

公开(公告)号：US07969647B2

公开(公告)日：2011-06-28

申请号：US12235041

申请日：2008-09-22

Applicant: Maxim Bolshtyansky ,  Gregory Cowle

Inventor： Maxim Bolshtyansky ,  Gregory Cowle

IPC: H04B10/17 ,  H01S3/30 ,  H04B10/12

CPC classification number: H01S3/1301 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/2375 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/296

Abstract: A change in loading conditions of fiber amplifiers in an optical communications network causes rapid variations in the gain profile of the amplifiers due to spectral hole burning and stimulated Raman scattering. An apparatus for reducing such gain profile variations is described which monitors optical signal perturbations and reacts by adjusting pump powers of the amplifiers and, or fast variable optical attenuator according to a pre-determined function stored in the form of constants in controller's memory. The optical signal is monitored as total power, and the power of light after passing through one or more optical filters. The light detection is relatively fast, whereby the gain profile variations are compensated by fast controlled variable optical attenuator and pump power adjustment upon the change in loading conditions.

Abstract translation: 光通信网络中的光纤放大器的负载条件的变化由于光谱空穴燃烧和受激拉曼散射而导致放大器的增益曲线的快速变化。 描述了一种用于减小这种增益分布变化的装置，其监视光信号扰动并通过根据在控制器存储器中的常数形式存储的预定函数来调整放大器的泵浦功率和快速可变光衰减器来进行反应。 光信号作为总功率被监测，并且通过一个或多个滤光器后的光功率。 光检测相对较快，从而通过快速控制的可变光衰减器和负载条件变化时的泵浦功率调整来补偿增益曲线变化。

公开(公告)号：US20110085231A1

公开(公告)日：2011-04-14

申请号：US12899402

申请日：2010-10-06

Applicant: Maxim BOLSHTYANSKY ,  Gregory Cowle

Inventor： Maxim BOLSHTYANSKY ,  Gregory Cowle

IPC: H01S3/10

CPC classification number: H01S3/06754 ,  H01S3/06758 ,  H01S3/1305 ,  H01S3/2383 ,  H01S2301/04

Abstract: A reconfigurable optical amplifier is formed of a plurality of optical switches and a plurality of fiber amplifier sections to provide a switchable amplifying network. A variable pump splitter provides pump light from an optical pump source to two or more fiber amplifier sections. The optical switches and variable pump splitters are formed in a planar lightwave circuit, which may further include pump WDM combiners, variable optical attenuators, tap couplers and other optical components, and to which monitoring photodiodes and the fiber amplifier sections are coupled. A same PLC can be used for a wide variety of reconfigurable optical amplifiers.

Abstract translation: 可重构光放大器由多个光开关和多个光纤放大器部分组成，以提供可切换放大网络。 可变泵分离器将来自光泵浦源的泵浦光提供给两个或更多个光纤放大器部分。 光开关和可变泵分离器形成在平面光波电路中，其可以进一步包括泵浦WDM组合器，可变光衰减器，抽头耦合器和其它光学部件，并且监控光电二极管和光纤放大器部分耦合到该光开关。 相同的PLC可用于各种可重新配置的光放大器。