公开(公告)号：US4686238A

公开(公告)日：1987-08-11

申请号：US817221

申请日：1986-01-08

Applicant: Dirk Bode ,  Swan T. Sie

Inventor： Dirk Bode ,  Swan T. Sie

IPC: B01J23/00 ,  B01J23/74 ,  B01J23/75 ,  B01J23/86 ,  B01J23/89 ,  C07B61/00 ,  C07C1/00 ,  C07C1/04 ,  C07C1/06 ,  C07C67/00

CPC classification number: B01J23/75 ,  B01J23/864 ,  B01J23/8913 ,  C07C1/0425 ,  C07C1/0485 ,  C07C1/06 ,  C07C2521/04 ,  C07C2521/06 ,  C07C2521/08 ,  C07C2521/12 ,  C07C2523/26 ,  C07C2523/46 ,  C07C2523/75 ,  Y10S208/95

Abstract: A process for the preparation of hydrocarbons by reaction of carbon monoxide with hydrogen over a supported cobalt catalyst in a fixed bed reactor downflow operation with recycle of a heavy hydrocarbon liquid over the catalyst.

Abstract translation: 在固定床反应器下流操作中通过在催化剂上再循环重质烃液体，通过一氧化碳与氢气在负载的钴催化剂上反应制备烃的方法。

公开(公告)号：US06313940B1

公开(公告)日：2001-11-06

申请号：US09476595

申请日：1999-12-31

Applicant: Dirk Bode ,  Victor S. Hyun ,  John G. Israel ,  Gerard T. Lingner, III ,  Bradley A. McKay ,  Prasanna R. Nadhumi ,  William A. Thompson

Inventor： Dirk Bode ,  Victor S. Hyun ,  John G. Israel ,  Gerard T. Lingner, III ,  Bradley A. McKay ,  Prasanna R. Nadhumi ,  William A. Thompson

IPC: H01S300

CPC classification number: H04B10/2935

Abstract: Each of a series of optical amplifiers is arranged such that, in response to detecting particular stimuli occurring at an input or receipt of an adjustment start message from an upstream amplifier, adjusts certain amplifier parameters using small steps and completes the adjustment using large steps if it does not receive the adjustment start message within a predetermined period of time of starting the adjustment in response to detecting the stimuli. If the optical amplifier receives the adjustment start message, then it continues to perform the adjustment and completes the adjustment using large steps when it receives an adjustment done message from the upstream optical amplifier. At that point, the optical amplifier sends an adjustment done message to the next downstream amplifier if it is not the tail-end amplifier.

Abstract translation: 一系列光放大器中的每一个被布置成使得响应于检测到来自上游放大器的输入或接收调整开始消息的特定刺激，使用小步骤来调整某些放大器参数，并且如果使用大步骤则完成调整 在响应于检测到刺激而在开始调整的预定时间段内没有接收到调整开始消息。 如果光放大器接收到调整开始消息，则当从上游光放大器接收到调整完成消息时，它继续执行调整并且使用大步骤完成调整。 在这一点上，如果光放大器不是尾端放大器，则光放大器向下一个下游放大器发送调整完成消息。

公开(公告)号：US06212001B1

公开(公告)日：2001-04-03

申请号：US09235797

申请日：1999-01-22

Applicant: Dirk Bode ,  Bernd Teichmann ,  Jianhui Zhou

Inventor： Dirk Bode ,  Bernd Teichmann ,  Jianhui Zhou

IPC: H01S300

CPC classification number: H04J14/0221

Abstract: The present invention relates generally to the field of optical transmission and particularly to a method and a system for controlling optical amplification in wavelength division multiplex optical transmission. WDM systems currently under development will have eighty or more channels, i.e., modulated optical signals with different wavelengths (known as Dense Wavelength Division Multiplexing, DWDM). These DWDM systems are demanding optical amplifiers which, especially considering the cascadation of a plurality of optical amplifiers along the transmission path of the DWDM system, have only very limited tolerances in certain parameters. Among these parameters gain flatness and gain tilt are of special importance. The present invention discloses a method and a system which make use of auxiliary optical signals having a given power level which is equal for all auxiliary signals. Differences in the power levels of the auxiliary signals after optical amplification are used for the control of the optical amplifiers of the WDM system.

Abstract translation: 本发明一般涉及光传输领域，特别涉及用于控制波分复用光传输中的光放大的方法和系统。 目前正在开发的WDM系统将具有八十个或更多个信道，即具有不同波长的调制光信号（称为密集波分复用，DWDM）。 这些DWDM系统要求光放大器，特别是考虑到沿着DWDM系统的传输路径的多个光放大器的级联，在某些参数中仅具有非常有限的公差。 在这些参数中，增益平坦度和增益倾斜特别重要。 本发明公开了一种使用具有与所有辅助信号相等的给定功率电平的辅助光信号的方法和系统。 光放大后辅助信号的功率电平差异用于WDM系统的光放大器的控制。

公开(公告)号：US6088152A

公开(公告)日：2000-07-11

申请号：US265943

申请日：1999-03-08

Applicant: Matthias Berger ,  Dirk Bode ,  Daniel A. Fishman ,  Gabriela Livescu ,  Christian Raabe ,  Fatimah Shehadeh ,  Jianhui Zhou ,  Martin Zirngibl

Inventor： Matthias Berger ,  Dirk Bode ,  Daniel A. Fishman ,  Gabriela Livescu ,  Christian Raabe ,  Fatimah Shehadeh ,  Jianhui Zhou ,  Martin Zirngibl

IPC: G02F1/35 ,  H01S3/06 ,  H01S3/10 ,  H01S3/30 ,  H04B10/02 ,  H04B10/16 ,  H04B10/17 ,  H04B10/18 ,  H04J14/00 ,  H04J14/02 ,  H01S3/108

CPC classification number: H04B10/2916 ,  H01S3/30 ,  H04B10/2912

Abstract: An optical amplifier is adapted to cancel the Raman gain of an optical transmission path that degrades those optical signals occupying the low end of the bandwidth such that the power is transferred from the latter signals to the optical signals occupying the high end of the bandwidth. More specifically, the optical amplifier adjusts the gain that it applies to the optical signals so that it favors the signal components at the low end of the bandwidth.

Abstract translation: 光学放大器适于消除光传输路径的拉曼增益，其降低占用带宽低端的那些光信号，使得功率从后一个信号传送到占据带宽高端的光信号。 更具体地说，光放大器调整其对光信号的增益，从而有利于带宽低端的信号分量。