公开(公告)号：US07173756B2

公开(公告)日：2007-02-06

申请号：US10906382

申请日：2005-02-17

Applicant: John Zyskind ,  Andrew Niall Robinson ,  Seo Yeon Park ,  Clement Dowd Burton ,  John Jacob ,  Erik Robert Thoen

Inventor： John Zyskind ,  Andrew Niall Robinson ,  Seo Yeon Park ,  Clement Dowd Burton ,  John Jacob ,  Erik Robert Thoen

IPC: H01S3/00

CPC classification number: H01S3/06758 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/1608 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/2935

Abstract: An optical communications system includes a plurality of optical fiber spans. An optical loss of one of the plurality of optical fiber spans is different from an optical loss of another one of the plurality of optical fiber spans. At least one of the plurality of optical fiber spans includes an optical loss that is greater than or equal to 35 dB and at least one of the plurality of optical fiber spans includes an optical loss that is less than 30 dB. An optical amplification system includes at least one discrete optical amplifier, at least one distributed optical amplifier, and an optical loss element. The optical amplification system has spectral gain that compensates for substantially all losses experienced by the optical signals propagating in the plurality of optical fiber spans.

Abstract translation: 光通信系统包括多个光纤跨段。 多个光纤跨度中的一个的光损耗不同于多个光纤跨段中的另一个的光损耗。 多个光纤跨度中的至少一个包括大于或等于35dB的光损耗，并且多个光纤跨度中的至少一个包括小于30dB的光损耗。 光放大系统包括至少一个分立光放大器，至少一个分布式光放大器和光损耗元件。 光放大系统具有光谱增益，其补偿在多个光纤跨段中传播的光信号所经历的基本上所有的损耗。

公开(公告)号：US06529315B2

公开(公告)日：2003-03-04

申请号：US09844875

申请日：2001-04-27

Applicant: Glenn Bartolini ,  Graeme Pendock ,  John Zyskind

Inventor： Glenn Bartolini ,  Graeme Pendock ,  John Zyskind

IPC: H01S300

CPC classification number: H01S3/06758 ,  H01S3/10023 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/04

Abstract: A dispersion-compensating fiber amplifier having a Raman pumped dispersion-compensating fiber and a distributed optical amplifier. The dispersion-compensating fiber is pumped such that the noise contribution of the dispersion-compensating fiber is reduced.

公开(公告)号：US07218442B2

公开(公告)日：2007-05-15

申请号：US10906759

申请日：2005-03-04

Applicant: Enis Akbaba ,  John Jacob ,  Andrew Niall Robinson ,  John Zyskind ,  Erik Robert Thoen

Inventor： Enis Akbaba ,  John Jacob ,  Andrew Niall Robinson ,  John Zyskind ,  Erik Robert Thoen

IPC: H01S3/00 ,  H04B10/08 ,  H04B17/00

CPC classification number: H04B10/2916 ,  H04B10/075 ,  H04B10/2931

Abstract: An optical communications system initiates automatic power reduction by selecting a portion of a Raman optical pumping signal from optical signals propagating on an optical fiber span. A signal related to a magnitude of the selected portion of the Raman optical pumping signal is generated. Power of at least one of the optical data signals and the optical pumping signals propagating in the optical fiber span is reduced in response to the generated signal.

Abstract translation: 光通信系统通过从在光纤跨度传播的光信号中选择拉曼光泵浦信号的一部分来启动自动功率降低。 产生与拉曼光泵浦信号的选定部分的幅度有关的信号。 响应于产生的信号，减少在光纤跨度中传播的光数据信号和光泵浦信号中的至少一个的功率。

公开(公告)号：US20060198016A1

公开(公告)日：2006-09-07

申请号：US10906759

申请日：2005-03-04

Applicant: Enis Akbaba ,  John Jacob ,  Andrew Robinson ,  John Zyskind ,  Erik Thoen

Inventor： Enis Akbaba ,  John Jacob ,  Andrew Robinson ,  John Zyskind ,  Erik Thoen

IPC: H01S3/00

CPC classification number: H04B10/2916 ,  H04B10/075 ,  H04B10/2931

Abstract: An optical communications system initiates automatic power reduction by selecting a portion of a Raman optical pumping signal from optical signals propagating on an optical fiber span. A signal related to a magnitude of the selected portion of the Raman optical pumping signal is generated. Power of at least one of the optical data signals and the optical pumping signals propagating in the optical fiber span is reduced in response to the generated signal.

Abstract translation: 光通信系统通过从在光纤跨度传播的光信号中选择拉曼光泵浦信号的一部分来启动自动功率降低。 产生与拉曼光泵浦信号的选定部分的幅度有关的信号。 响应于产生的信号，减少在光纤跨度中传播的光数据信号和光泵浦信号中的至少一个的功率。

公开(公告)号：US20060193035A1

公开(公告)日：2006-08-31

申请号：US10906382

申请日：2005-02-17

Applicant: John Zyskind ,  Andrew Robinson ,  Seo Park ,  Clement Burton ,  John Jacob ,  Erik Thoen

Inventor： John Zyskind ,  Andrew Robinson ,  Seo Park ,  Clement Burton ,  John Jacob ,  Erik Thoen

IPC: H01S3/00

CPC classification number: H01S3/06758 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/1608 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/2935

Abstract: An optical communications system includes a plurality of optical fiber spans. An optical loss of one of the plurality of optical fiber spans is different from an optical loss of another one of the plurality of optical fiber spans. At least one of the plurality of optical fiber spans includes an optical loss that is greater than or equal to 35 dB and at least one of the plurality of optical fiber spans includes an optical loss that is less than 30 dB. An optical amplification system includes at least one discrete optical amplifier, at least one distributed optical amplifier, and an optical loss element. The optical amplification system has spectral gain that compensates for substantially all losses experienced by the optical signals propagating in the plurality of optical fiber spans.

Abstract translation: 光通信系统包括多个光纤跨段。 多个光纤跨度中的一个的光损耗不同于多个光纤跨段中的另一个的光损耗。 多个光纤跨度中的至少一个包括大于或等于35dB的光损耗，并且多个光纤跨度中的至少一个包括小于30dB的光损耗。 光放大系统包括至少一个分立光放大器，至少一个分布式光放大器和光损耗元件。 光放大系统具有光谱增益，其补偿在多个光纤跨段中传播的光信号所经历的基本上所有的损耗。

公开(公告)号：US20060140626A1

公开(公告)日：2006-06-29

申请号：US10905294

申请日：2004-12-24

Applicant: Andrew Robinson ,  John Jacob ,  Erik Thoen ,  Seo Park ,  John Zyskind ,  Enis Akbaba

Inventor： Andrew Robinson ,  John Jacob ,  Erik Thoen ,  Seo Park ,  John Zyskind ,  Enis Akbaba

IPC: H04B10/08

CPC classification number: H04B10/077 ,  H04B2210/078

Abstract: An optical supervisory channel includes a transmit path that propagates optical supervisory signals to a high span loss optical fiber span having an optical loss that is greater than 35 dB. A wavelength division multiplexer adds the optical supervisory signals to the high span loss optical fiber span. A second wavelength division multiplexer extracts the optical supervisory signals from the high span loss optical fiber span. A receive path propagates the optical supervisory signals away from the high span loss optical fiber span. The optical supervisory channel also includes a means for reducing a bit error rate of the optical supervisory channel.

Abstract translation: 光监控通道包括将光监控信号传播到具有大于35dB的光损耗的高跨距损耗光纤跨距的发射路径。 波分复用器将光监控信号添加到高跨度损耗光纤跨度。 第二波分复用器从高跨度损耗光纤跨度提取光监控信号。 接收路径将光监控信号传播远离高跨度损耗光纤跨度。 光学监控通道还包括用于减少光学监控通道的误码率的装置。

公开(公告)号：US06396051B1

公开(公告)日：2002-05-28

申请号：US09589942

申请日：2000-06-07

Applicant: Jinghui Li ,  Eric Swanson ,  John Zyskind

Inventor： Jinghui Li ,  Eric Swanson ,  John Zyskind

IPC: G01J400

CPC classification number: G02B6/29322 ,  H04B10/07953

Abstract: An apparatus for measuring the optical-signal-to-noise ratio (OSNR) of an optical system is adapted to function in single channel or in multi-channel wavelength division multiplexed optical communication systems. An optical signal spectrum and a center frequency characterize the optical signals. A narrow-band notch filter, realized by an in-fiber Bragg grating, is utilized to remove a component of the signal so the remaining signal can be measured. When multiple channels are present, a bandpass filter is used to select the part of the multiplexed signal to be measured. Both the narrow-band notch filter and the bandpass filter can be tunable to further extend the capabilities of the system. Two detectors are utilized with the power in the channel being measured by a low-gain detector and the power in the noise being measured by a high-gain detector. A processor receives the detector outputs, calculates OSNR, and controls the tunable components.

Abstract translation: 用于测量光学系统的光信噪比（OSNR）的装置适于在单通道或多通道波分复用光通信系统中起作用。 光信号频谱和中心频率表征光信号。 使用由光纤内布拉格光栅实现的窄带陷波滤波器来去除信号的分量，从而可以测量剩余的信号。 当存在多个通道时，使用带通滤波器来选择待测量的复用信号的一部分。 窄带陷波滤波器和带通滤波器都可以调节，以进一步扩展系统的功能。 利用两个检测器，通道中的功率由低增益检测器测量，噪声中的功率由高增益检测器测量。 处理器接收检测器输出，计算OSNR，并控制可调组件。