公开(公告)号：US09140624B2

公开(公告)日：2015-09-22

申请号：US13541146

申请日：2012-07-03

Applicant: Jun Bao ,  Michael Haidar Shahine ,  Hua Jiao ,  Jean-Luc Archambault

Inventor： Jun Bao ,  Michael Haidar Shahine ,  Hua Jiao ,  Jean-Luc Archambault

IPC: G01N21/55 ,  G01M11/00

CPC classification number: G01M11/3118 ,  G01N21/55

Abstract: Systems and methods are described for reducing coherence effect in narrow line-width light sources through various modulation techniques. The systems and methods can include a narrow line-width laser source with a thermoelectric cooler thermally coupled thereto and a controller communicatively coupled to the thermoelectric cooler. The controller is configured to provide a varied input signal to the thermoelectric cooler to reduce coherence of the narrow line-width laser source by artificially broadening the narrow line-width on a time averaged basis. The systems and methods can also include direct modulation of the narrow line-width laser source. The systems and methods can include a narrow line-width Optical Time Domain Reflectometer (OTDR). The systems and methods can also include direct modulation of the narrow line-width laser source with or without the varied input signal to the thermoelectric cooler.

Abstract translation: 描述了通过各种调制技术降低窄线宽光源的相干效应的系统和方法。 该系统和方法可以包括具有热耦合到其上的热电冷却器的窄线宽激光源和通信地耦合到热电冷却器的控制器。 控制器被配置为向热电冷却器提供变化的输入信号，以通过以时间平均的方式人为地加宽窄线宽来减小窄线宽激光源的相干性。 系统和方法还可以包括对窄线宽激光源的直接调制。 系统和方法可以包括窄线宽光时域反射计（OTDR）。 这些系统和方法还可以包括对具有或不具有到热电冷却器的变化的输入信号的窄线宽激光源的直接调制。

公开(公告)号：US20140009763A1

公开(公告)日：2014-01-09

申请号：US13541146

申请日：2012-07-03

Applicant: Jun BAO ,  Michael Haidar SHAHINE ,  Hua JIAO ,  Jean-Luc ARCHAMBAULT

Inventor： Jun BAO ,  Michael Haidar SHAHINE ,  Hua JIAO ,  Jean-Luc ARCHAMBAULT

IPC: H01S3/10 ,  G01N21/55

CPC classification number: G01M11/3118 ,  G01N21/55

Abstract: Systems and methods are described for reducing coherence effect in narrow line-width light sources through various modulation techniques. The systems and methods can include a narrow line-width laser source with a thermoelectric cooler thermally coupled thereto and a controller communicatively coupled to the thermoelectric cooler. The controller is configured to provide a varied input signal to the thermoelectric cooler to reduce coherence of the narrow line-width laser source by artificially broadening the narrow line-width on a time averaged basis. The systems and methods can also include direct modulation of the narrow line-width laser source. The systems and methods can include a narrow line-width Optical Time Domain Reflectometer (OTDR). The systems and methods can also include direct modulation of the narrow line-width laser source with or without the varied input signal to the thermoelectric cooler.

Abstract translation: 描述了通过各种调制技术降低窄线宽光源的相干效应的系统和方法。 该系统和方法可以包括具有热耦合到其上的热电冷却器的窄线宽激光源和通信地耦合到热电冷却器的控制器。 控制器被配置为向热电冷却器提供变化的输入信号，以通过人为地在时间平均的基础上加宽窄线宽来减小窄线宽激光源的相干性。 系统和方法还可以包括对窄线宽激光源的直接调制。 系统和方法可以包括窄线宽光时域反射计（OTDR）。 这些系统和方法还可以包括对具有或不具有到热电冷却器的变化的输入信号的窄线宽激光源的直接调制。

公开(公告)号：US08467688B2

公开(公告)日：2013-06-18

申请号：US11855514

申请日：2007-09-14

Applicant: Jean-Luc Archambault ,  Steven Arvo Surek ,  Martin Nuss

Inventor： Jean-Luc Archambault ,  Steven Arvo Surek ,  Martin Nuss

IPC: H04B10/12 ,  H04B10/2513

CPC classification number: H04B10/25133 ,  H04B10/2513 ,  H04J3/0682 ,  H04J3/0685 ,  H04J14/02

Abstract: Systems and methods for extended reach low differential latency optical networking with optical amplifiers and dispersion compensation modules configured to minimize latency between transmit and receive paths are provided. Additionally, systems and methods are provided for incorporating absolute time references wherein the relative accuracy of clock time between various servers used in various multi-site enterprises is required. The transport systems and methods are used in conjunction with low differential latency systems. The transport systems and methods provide that the differential latency between transmit and receive directions is maintained within about +/−5 microseconds of the transmit/receive path differential delay requirement in order to perform within the overall parameters of the low differential latency system architecture.

Abstract translation: 提供了用于延长达到的低差分延迟光网络的系统和方法，其中光学放大器和色散补偿模块被配置为最小化发射和接收路径之间的等待时间。 此外，提供了用于引入绝对时间参考的系统和方法，其中需要在各种多站点企业中使用的各种服务器之间的时钟时间的相对精度。 传输系统和方法与低差分延迟系统结合使用。 传输系统和方法提供发送和接收方向之间的差分等待时间保持在发射/接收路径差分延迟要求的大约+/- 5微秒内，以便在低差分延迟系统架构的总体参数内执行。

公开(公告)号：US07962049B2

公开(公告)日：2011-06-14

申请号：US11954980

申请日：2007-12-12

Applicant: John P. Mateosky ,  Michael Y. Frankel ,  Jean-Luc Archambault

Inventor： John P. Mateosky ,  Michael Y. Frankel ,  Jean-Luc Archambault

IPC: H04B10/06

CPC classification number: H04L1/005 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0066

Abstract: The present invention provides systems and methods for communication system control utilizing corrected forward error correction (FEC) error location identifiers in multi-level modulation scheme systems. The present invention utilizes precise error correction information, available for each FEC block of a particular code (including, but not limited to, block codes and concatenated block codes employing iterative decoding as well as convolutional codes (including turbo codes) and low-density parity-check code (LDPC) class codes) used (e.g., Bose, Ray-Chaudhuri, Hocquenghem (BCH), Reed-Solomon, etc.), as a result of the FEC decoding process to provide feedback to close the loop for control of a demodulator (i.e., receiver). Each error location can be uniquely traced back to a particular sub-rate signal path, with running, post-FEC corrected BER (bit error rate) calculations generated on each sub-rate signal. Advantageously, this provides the ability to adjust thresholds and various other parameters to achieve and maintain error-free operation quickly.

Abstract translation: 本发明提供了在多级调制方案系统中利用校正的前向纠错（FEC）错误位置标识符的通信系统控制的系统和方法。 本发明利用针对特定码的每个FEC块（包括但不限于采用迭代解码以及卷积码（包括turbo码）的块码和级联块码）和低密度奇偶校验码的精确纠错信息 - 使用的检验码（LDPC）类码）（例如，Bose，Ray-Chaudhuri，Hocquenghem（BCH），Reed-Solomon等），作为FEC解码处理的结果，提供反馈以关闭用于控制 解调器（即接收器）。 每个错误位置可以唯一地追溯到特定的子速率信号路径，其中每个子速率信号上产生运行的FEC后校正BER（误码率）计算。 有利地，这提供了调整阈值和各种其他参数以便快速实现和维持无差错操作的能力。

公开(公告)号：US06614959B1

公开(公告)日：2003-09-02

申请号：US09627900

申请日：2000-07-27

Applicant: Victor Mizrahi ,  Jean-Luc Archambault

Inventor： Victor Mizrahi ,  Jean-Luc Archambault

IPC: G02B634

CPC classification number: G02B6/02152 ,  G02B6/02085 ,  G02B6/02133

Abstract: An optical waveguide having a refractive index variation is formed by interfering two beams thereon and varying a fringe contrast of the interference pattern. This variation in fringe contrast may be provided by controlling the relative polarizations of the two interfering beams or the relative intensities of the two interfering beams. Preferably, a substantially constant total intensity is provided to the waveguide during the variation in fringe contrast.

Abstract translation: 具有折射率变化的光波导通过在其上干扰两个光束并改变干涉图案的条纹对比来形成。 可以通过控制两个干涉光束的相对极化或两个干涉光束的相对强度来提供条纹对比度的这种变化。 优选地，在条纹对比度的变化期间向波导提供基本恒定的总强度。

公开(公告)号：US06404948B2

公开(公告)日：2002-06-11

申请号：US09770367

申请日：2001-01-26

Applicant: Stephen B. Alexander ,  Jean-Luc Archambault ,  Victor Mizrahi ,  Henry H. Yaffe

Inventor： Stephen B. Alexander ,  Jean-Luc Archambault ,  Victor Mizrahi ,  Henry H. Yaffe

IPC: G02B628

CPC classification number: G02B6/12019 ,  G02B6/29317 ,  G02B6/29355 ,  G02B6/29361 ,  G02B6/2938 ,  H04J14/02 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0213

Abstract: In accordance with the present invention, optical channels to be demultiplexed are supplied to first and second optical fibers via an optical splitter. Low loss interference filters, for example, coupled to the first and second optical fibers, select respective groups of channels. Each group of channels is next demultiplexed with sub-demultiplexers into individual channels, each of which is then sensed with a corresponding photodetector. Although the optical splitter introduces an optical power loss at the input to the demultiplexer, the interference filters and sub-demultiplexers create little additional loss. As a result, the total power loss associated with the present invention is significantly less than that obtained with a conventional n channel demultiplexer based on a 1×n splitter. Accordingly, large numbers of channels, e.g., in excess of forty can be readily demultiplexed and detected.

Abstract translation: 根据本发明，要解复用的光信道经由光分路器被提供给第一和第二光纤。 耦合到第一和第二光纤的低损耗干扰滤波器选择相应的信道组。 接下来，将各组信道用子解复用器分离成单个信道，然后用相应的光电检测器检测每个信道。 虽然光分路器在多路分解器的输入端引入光功率损耗，但是干扰滤波器和子解复用器几乎不产生额外的损耗。 结果，与本发明相关联的总功率损耗明显小于基于1xn分路器的常规n信道解复用器获得的总功率损耗。 因此，可以容易地解复用和检测大量的信道，例如超过40个信道。

公开(公告)号：US5892615A

公开(公告)日：1999-04-06

申请号：US819689

申请日：1997-03-17

Applicant: Stephen G. Grubb ,  Raymond Zanoni ,  Robert G. Waarts ,  Jean-Luc Archambault

Inventor： Stephen G. Grubb ,  Raymond Zanoni ,  Robert G. Waarts ,  Jean-Luc Archambault

IPC: G02B6/02 ,  G02B6/036 ,  H01S3/067 ,  H01S3/094 ,  H01S3/10 ,  H01S3/30 ,  G02B6/26 ,  H01C3/06

CPC classification number: G02B6/03694 ,  G02B6/02 ,  G02B6/03627 ,  G02B6/03638 ,  H01S3/06708 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/10023 ,  H01S3/302

Abstract: An optical fiber used as the active amplifying medium in a fiber laser is arranged to have a high insertion loss at an undesired frequency, while retaining a low insertion loss at a desired lasing frequency. In one embodiment, loss at a Raman-shifted frequency is introduced by using an optical fiber which has multiple claddings with an index profile that includes an elevated index region located away from the core, but within the evanescent coupling region of the core. A distributed loss, which can be enhanced by bending, is produced at the Raman frequency which effectively raises the threshold at which Raman scattering occurs in the fiber and therefore results in a frequency-selective fiber. In another embodiment, an absorbing layer is placed around the core region. The absorbing layer is chosen to have a sharp absorption edge so that it absorbs highly at the Raman-shifted wavelength, but minimally at the desired lasing wavelength. In still another embodiment, the optical fiber is constructed with a core with long period gratings formed therein. The gratings are fabricated with a periodicity selected to provide a relatively high insertion loss at the Raman frequency while simultaneously providing a relatively low insertion loss at the lasing frequency. In accordance with yet another embodiment, a bend loss technique is used to suppress amplified spontaneous emission at an unwanted wavelength due to a competing atomic energy level system in a fiber laser.

Abstract translation: 在光纤激光器中用作有源放大介质的光纤布置成在不期望的频率下具有高插入损耗，同时保持在期望的激光频率下的低插入损耗。 在一个实施例中，通过使用具有多个包层的光纤引入拉曼移位频率处的损耗，折射率分布包括位于远离芯的升高的折射率区域，但在核心的消逝耦合区域内。 可以在拉曼频率下产生可以通过弯曲增强的分布损耗，其有效地提高了在光纤中发生拉曼散射的阈值，因此导致频率选择性光纤。 在另一实施例中，吸收层围绕芯区域放置。 吸收层被选择为具有尖锐的吸收边缘，使得其以拉曼位移的波长高度吸收，但在期望的激光波长处最小。 在另一个实施例中，光纤由其中形成有长周期光栅的芯构成。 以选择的周期制造光栅，以在拉曼频率处提供相对高的插入损耗，同时在激光频率下提供相对低的插入损耗。 根据另一个实施例，弯曲损耗技术用于抑制由于光纤激光器中竞争的原子能级系统引起的不需要的波长的放大的自发发射。

公开(公告)号：US08817245B2

公开(公告)日：2014-08-26

申请号：US13593212

申请日：2012-08-23

Applicant: Jean-Luc Archambault ,  Jun Bao

Inventor： Jean-Luc Archambault ,  Jun Bao

IPC: G01N21/00 ,  G01M11/00

CPC classification number: G01M11/3145 ,  G01M11/335 ,  H01S3/0014 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/10007 ,  H01S3/1608 ,  H01S3/302

Abstract: A method, optical module, and optical amplifier are configured to detect fiber discontinuities at or near a port from which high powered optical signals are input into a fiber span. These fiber discontinuities can include fiber pinches, and are detected by monitoring for slight changes in a backscatter signal. Detection is quick and efficient based on the backscatter signal being attenuated by the fiber discontinuities twice, namely once as the high powered optical signals and again as the associated backscatter signal of the high powered optical signals returning to the port. Various remedial actions can be taken upon detecting fiber pinches at or near the port.

Abstract translation: 一种方法，光学模块和光学放大器被配置为检测光纤不连续性，其中高功率光信号从该端口输入到光纤跨度。 这些光纤不连续性可以包括光纤夹紧，并通过监视反向散射信号的轻微变化来检测。 基于后向散射信号被光纤不连续性衰减两次，即一次作为高功率光信号，再次作为返回到端口的大功率光信号的相关后向散射信号，检测是快速和有效的。 在端口处或附近检测光纤夹点时可以采取各种补救措施。

公开(公告)号：US20110262142A1

公开(公告)日：2011-10-27

申请号：US12767921

申请日：2010-04-27

Applicant: Jean-Luc ARCHAMBAULT

Inventor： Jean-Luc ARCHAMBAULT

IPC: H04J14/02

CPC classification number: H04J14/02 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0275

Abstract: The present disclosure provides reconfigurable optical add drop multiplexer (ROADM) node automatic topology discovery systems and methods providing a mapping of optical connections within a mesh optical network that includes tunable lasers and multi-degree ROADM's with colorless/directionless add/drop. The present disclosure may include additional transceiver, receiver, and add/drop filter equipment integrated in or disposed at a ROADM degree. This equipment supports a so-called topology wavelength which is one of a plurality of wavelengths supported by a wavelength division multiplexed (WDM) system that is dedicated and used solely for topology discovery. The topology wavelength may be utilized by the system to detect interconnects between ROADM degrees and between XCVRs/CDMDs. Further, the automated topology discovery may be integrated within a management system and/or control plane.

Abstract translation: 本公开提供了可重配置光分插复用器（ROADM）节点自动拓扑发现系统和方法，其提供包括可调谐激光器和网络光网络内的光连接的映射，所述可调谐激光器和具有无色/无方向加/减的多度ROADM。 本公开可以包括集成在ROADM度中或以ROADM度布置的附加收发器，接收器和加/减滤波器设备。 该设备支持所谓的拓扑波长，其是由专用且仅用于拓扑发现的波分复用（WDM）系统支持的多个波长之一。 系统可以利用拓扑波长来检测ROADM度与XCVR / CDMD之间的互连。 此外，自动拓扑发现可以集成在管理系统和/或控制平面内。

公开(公告)号：US20090154941A1

公开(公告)日：2009-06-18

申请号：US11954980

申请日：2007-12-12

Applicant: JOHN P. MATEOSKY ,  MICHAEL Y. FRANKEL ,  JEAN-LUC ARCHAMBAULT

Inventor： JOHN P. MATEOSKY ,  MICHAEL Y. FRANKEL ,  JEAN-LUC ARCHAMBAULT

IPC: H04B10/06

CPC classification number: H04L1/005 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0066

Abstract: The present invention provides systems and methods for communication system control utilizing corrected forward error correction (FEC) error location identifiers in multi-level modulation scheme systems. The present invention utilizes precise error correction information, available for each FEC block of a particular code (including, but not limited to, block codes and concatenated block codes employing iterative decoding as well as convolutional codes (including turbo codes) and low-density parity-check code (LDPC) class codes) used (e.g., Bose, Ray-Chaudhuri, Hocquenghem (BCH), Reed-Solomon, etc.), as a result of the FEC decoding process to provide feedback to close the loop for control of a demodulator (i.e., receiver). Each error location can be uniquely traced back to a particular sub-rate signal path, with running, post-FEC corrected BER (bit error rate) calculations generated on each sub-rate signal. Advantageously, this provides the ability to adjust thresholds and various other parameters to achieve and maintain error-free operation quickly.

Abstract translation: 本发明提供了在多级调制方案系统中利用校正的前向纠错（FEC）错误位置标识符的通信系统控制的系统和方法。 本发明利用针对特定码的每个FEC块（包括但不限于采用迭代解码以及卷积码（包括turbo码）的块码和级联块码）和低密度奇偶校验码的精确纠错信息 - 使用的检验码（LDPC）类码）（例如，Bose，Ray-Chaudhuri，Hocquenghem（BCH），Reed-Solomon等），作为FEC解码处理的结果，提供反馈以关闭用于控制 解调器（即接收器）。 每个错误位置可以唯一地追溯到特定的子速率信号路径，其中每个子速率信号上产生运行的FEC后校正BER（误码率）计算。 有利地，这提供了调整阈值和各种其他参数以便快速实现和维持无差错操作的能力。