公开(公告)号：US09866493B2

公开(公告)日：2018-01-09

申请号：US13853758

申请日：2013-03-29

申请人： Abhijeet D. Deore ,  Manish Chandra ,  Dharmendra Naik ,  Kiran Kumar Dintakurthi ,  Konstantin Saunichev ,  Biao Lu ,  Steven Joseph Hand ,  Sudhanshu Verma

发明人： Abhijeet D. Deore ,  Manish Chandra ,  Dharmendra Naik ,  Kiran Kumar Dintakurthi ,  Konstantin Saunichev ,  Biao Lu ,  Steven Joseph Hand ,  Sudhanshu Verma

IPC分类号： G06F15/173 ,  H04L12/823 ,  H04L12/911 ,  H04L12/927

CPC分类号： H04L47/32 ,  H04L47/788 ,  H04L47/805 ,  H04L47/829

摘要： A network device may receive an activation instruction. The network device may provide network resources. The activation instruction may request the network device to activate a particular network resource that is deactivated. The activation instruction may be associated with a license that identifies the particular network resource and identifies a resource request of a user. The network device may configure, based on the activation instruction, a component of the network device to activate the particular network resource. The component, after being configured to activate the particular network resource, may allow data flows, received by the network device, to be provided towards a destination device using the particular network resource. The network device may receive a data flow and provide, by the component of the network device, the data flow towards the destination device using the particular network resource.

公开(公告)号：US08325413B2

公开(公告)日：2012-12-04

申请号：US12732118

申请日：2010-03-25

申请人： Abhijeet D. Deore ,  Andrew Q. Phan ,  Zhong Pan

发明人： Abhijeet D. Deore ,  Andrew Q. Phan ,  Zhong Pan

IPC分类号： H04B10/17 ,  H04B10/12

CPC分类号： H01S3/06758 ,  H01S3/09408 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1608 ,  H01S3/302 ,  H04B10/2916 ,  H04J14/0201 ,  H04J14/0221

摘要： A system is provided that includes optical amplifiers provided upstream from an optical add-drop multiplexer (OADM). One of the optical amplifiers may be a Raman amplifier that supplies amplified light to another optical amplifier, such as an erbium doped fiber amplifier (EDFA), which, in turn, further amplifies and feeds the light to an input of the OADM. During turn-up, for example, the EDFA may initially be disabled, the power of the pump lasers of the Raman amplifier may be gradually increased until light input to the EDFA exceeds a power threshold at which the EDFA can amplify the input light. Light supplied to the EDFA does not have an excessive amount of power. Accordingly, at this point, the gain of the EDFA may be appropriately adjusted and then activated to supply optical signals to the OADM. Such optical signals may have a low power but not too low so as to prevent proper operation of downstream EDFA. Moreover, these optical signal do not have power that is so high as to cause “spiking.” As a result, cross-talk with optical signals added by the OADM is minimized, and such added optical signals may be sufficiently amplified by optical amplifiers downstream from the OADM.

摘要翻译： 提供了一种包括从光分插复用器（OADM）上游提供的光放大器的系统。 光放大器之一可以是拉曼放大器，其将放大的光提供给另一个光放大器，例如掺铒光纤放大器（EDFA），其又进一步放大并将光馈送到OADM的输入。 例如，在上电期间，EDFA最初可能被禁用，拉曼放大器的泵浦激光器的功率可以逐渐增加，直到输入到EDFA的光超过EDFA可以放大输入光的功率阈值。 提供给EDFA的光不具有过多的功率。 因此，此时可以适当地调节EDFA的增益，然后激活以向OADM提供光信号。 这样的光信号可能具有低功率但不太低，以便防止下游EDFA的正常操作。 而且，这些光信号的功率不高，从而引起尖峰。 结果，由OADM添加的光信号的串扰最小化，并且这种添加的光信号可以被OADM下游的光放大器充分放大。

公开(公告)号：US08428463B2

公开(公告)日：2013-04-23

申请号：US12777223

申请日：2010-05-10

申请人： Benjamin A. Warren ,  Saurabh Kumar ,  Abhijeet D. Deore ,  Brian B. Shia ,  Ganesh Sundaresan

发明人： Benjamin A. Warren ,  Saurabh Kumar ,  Abhijeet D. Deore ,  Brian B. Shia ,  Ganesh Sundaresan

IPC分类号： H04J14/02

CPC分类号： H04J14/0221 ,  H04B10/2941

摘要： Consistent with the present disclosure, a method and apparatus for providing a uniform spectral gain of an optical amplifier is provided. Namely, a “balancing” step is carried out in which an optical channel having the lowest power level input to an optical circuit, such as an dynamic gain equalizer (DGE), is assigned a zero “attenuation error” and is substantially un-attenuated by the DGE. The lowest power level optical signal does not require further attenuation and effectively serves as a reference power level, which the power levels of the remaining optical signals are set to. For example, remaining optical signals are assigned either positive or negative attenuation errors relative to the zero attenuation error based on optical signal input powers to the DGE and accumulated DGE attenuations over time. Those optical signals having a negative attenuation error are substantially unattenuated by the DGE, because such optical signals are adequately attenuated and do not require further attenuation. On the other hand, the DGE is controlled to attenuate those optical signals having positive attenuation errors to thereby flatten the output spectrum of the amplifier. In one example, interpolation techniques may be employed to control those portions of the DGE (e.g., attenuators or pixels) that do not receive a channel, such that adjacent pixels that receive channels may impart a desired amount of attenuation. In addition, further interpolation may be provided to appropriately control the DGE pixels, if the number of channels supplied to the DGE is different than the number of pixels of the DGE.

摘要翻译： 根据本公开，提供了一种用于提供光放大器的均匀光谱增益的方法和装置。 也就是说，执行“平衡”步骤，其中具有输入到诸如动态增益均衡器（DGE）的光电路的最低功率电平的光信道被分配零“衰减误差”并且基本上未衰减 由DGE。 最低功率电平光信号不需要进一步的衰减，并且有效地用作参考功率电平，其余的光信号的功率电平被设置为。 例如，基于对DGE的光信号输入功率和随时间的累积DGE衰减，剩余的光信号相对于零衰减误差分配正或负衰减误差。 具有负衰减误差的那些光信号由DGE基本上未衰减，因为这样的光信号被充分地衰减并且不需要进一步的衰减。 另一方面，控制DGE来衰减那些具有正衰减误差的光信号，从而使放大器的输出光谱变平。 在一个示例中，可以采用插值技术来控制不接收信道的DGE（例如，衰减器或像素）的那些部分，使得接收信道的相邻像素可以施加期望的衰减量。 此外，如果提供给DGE的信道数量不同于DGE的像素数，则可以进一步内插以适当地控制DGE像素。

公开(公告)号：US20110235164A1

公开(公告)日：2011-09-29

申请号：US12732118

申请日：2010-03-25

申请人： Abhijeet D. Deore ,  Andrew Q. Phan ,  Zhong Pan

发明人： Abhijeet D. Deore ,  Andrew Q. Phan ,  Zhong Pan

IPC分类号： H01S3/30

CPC分类号： H01S3/06758 ,  H01S3/09408 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1608 ,  H01S3/302 ,  H04B10/2916 ,  H04J14/0201 ,  H04J14/0221

摘要： A system is provided that includes optical amplifiers provided upstream from an optical add-drop multiplexer (OADM). One of the optical amplifiers may be a Raman amplifier that supplies amplified light to another optical amplifier, such as an erbium doped fiber amplifier (EDFA), which, in turn, further amplifies and feeds the light to an input of the OADM. During turn-up, for example, the EDFA may initially be disabled, the power of the pump lasers of the Raman amplifier may be gradually increased until light input to the EDFA exceeds a power threshold at which the EDFA can amplify the input light. Light supplied to the EDFA does not have an excessive amount of power. Accordingly, at this point, the gain of the EDFA may be appropriately adjusted and then activated to supply optical signals to the OADM. Such optical signals may have a low power but not too low so as to prevent proper operation of downstream EDFA. Moreover, these optical signal do not have power that is so high as to cause “spiking.” As a result, cross-talk with optical signals added by the OADM is minimized, and such added optical signals may be sufficiently amplified by optical amplifiers downstream from the OADM.

摘要翻译： 提供了一种包括从光分插复用器（OADM）上游提供的光放大器的系统。 光放大器之一可以是拉曼放大器，其将放大的光提供给另一个光放大器，例如掺铒光纤放大器（EDFA），其又进一步放大并将光馈送到OADM的输入。 例如，在上电期间，EDFA最初可能被禁用，拉曼放大器的泵浦激光器的功率可以逐渐增加，直到输入到EDFA的光超过EDFA可以放大输入光的功率阈值。 提供给EDFA的光不具有过多的功率。 因此，此时可以适当地调节EDFA的增益，然后激活以向OADM提供光信号。 这样的光信号可能具有低功率但不太低，以便防止下游EDFA的正常操作。 此外，这些光信号不具有如此高的能量以引起“尖峰”的功率。结果，由OADM添加的光信号的串扰最小化，并且这样添加的光信号可以被下游的光放大器充分放大 来自OADM。

公开(公告)号：US08509615B2

公开(公告)日：2013-08-13

申请号：US12814460

申请日：2010-06-13

申请人： Abhijeet D. Deore ,  Saurabh Kumar ,  Walid El-Taki

发明人： Abhijeet D. Deore ,  Saurabh Kumar ,  Walid El-Taki

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/0777

摘要： Consistent with the present disclosure, an optical amplifier is provided that is configurable in one of two modes. In both modes, the optical service channel (OSC) may be dropped and converted to an electrical signal. In the first mode, the electrical signal is subject to further processing and the monitoring and/or control information carried by the OSC may be updated with new data. Such updated monitoring and control information is then supplied to an OSC transmitter and modulated onto an OSC output from the optical amplifier. In a second mode of operation (“loop back” mode), however, the monitoring and/or control information bypasses the processing noted above is looped back to the OSC transmitter unchanged. Accordingly, OSC monitoring and control information or data can be rapidly passed through the optical amplifier with little delay. Moreover, the optical amplifier may be configured to operate in either the first or second modes by appropriately configuring a switch. Thus, a standard optical amplifier can be used as a both a line amplifier, in which OSC data is processed and updated, as well as a booster amplifier in which such updating does not occur, for example, but the OSC data may be propagated to other amplifiers with little delay.

摘要翻译： 根据本公开，提供了可以以两种模式之一配置的光放大器。 在这两种模式中，光服务信道（OSC）可以被丢弃并转换成电信号。 在第一模式中，电信号进行进一步处理，并且可以用新数据更新OSC携带的监视和/或控制信息。 然后将这种更新的监控和控制信息提供给OSC发射机，并将其调制到从光放大器输出的OSC上。 然而，在第二操作模式（“回送”模式）中，绕过上述处理的监视和/或控制信息不变地被环回到OSC发射机。 因此，OSC监视和控制信息或数据可以以很小的延迟快速地通过光放大器。 此外，光放大器可以被配置为通过适当地配置开关来操作第一或第二模式。 因此，可以使用标准光放大器作为其中处理和更新OSC数据的线路放大器以及其中不发生这种更新的升压放大器，但是可以将OSC数据传播到 其他放大器几乎没有延迟。