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1. 发明授权

US08364034B2 In-band optical noise measurement using differential polarization response 有权
标题翻译：使用差分极化响应的带内光学噪声测量
公开(公告)号：US08364034B2
公开(公告)日：2013-01-29
申请号：US12859648
申请日：2010-08-19
申请人： Gang He , Normand Cyr , Daniel Gariepy
发明人： Gang He , Normand Cyr , Daniel Gariepy
IPC分类号： H04B10/08
CPC分类号： H04B10/07953
摘要： A method comprises: acquiring, for a number nSOP of varied State-Of-Polarization analysis conditions of the input optical signal, nSOP polarization-analyzed optical spectrum traces; mathematically discriminating said signal contribution from said noise contribution within said optical signal bandwidth using said polarization-analyzed optical spectrum traces, said mathematically discriminating comprising: obtaining a differential polarization response that is related to the optical spectrum of said signal contribution by a constant of proportionality; estimating the constant of proportionality of a differential polarization response to the optical spectrum of said signal contribution; estimating the optical spectrum of said noise contribution from said input optical signal, within said optical signal bandwidth using said constant of proportionality and said differential polarization response; and determining said in-band noise parameter on said input optical signal from the mathematically discriminated noise contribution.
摘要翻译：一种方法包括：对于输入光信号的nSOP极化分析条件的nSOP数值，获取nSOP偏振分析光谱图; 使用所述经偏振分析的光谱轨迹，在所述光信号带宽内从所述噪声贡献中数学地识别所述信号贡献，所述数学鉴别包括：获得与所述信号贡献的光谱相关比例常数的差分偏振响应; 估计差分极化响应与所述信号贡献的光谱的比例常数; 使用所述比例常数和所述微分极化响应在所述光信号带宽内估计来自所述输入光信号的所述噪声贡献的光谱; 以及从所述数学鉴别的噪声贡献中确定所述输入光信号上的所述带内噪声参数。

2. 发明授权

US09112604B2 Reference-based in-band OSNR measurement on polarization-multiplexed signals 有权
标题翻译：偏振复用信号的基于参考的带内OSNR测量
公开(公告)号：US09112604B2
公开(公告)日：2015-08-18
申请号：US13501708
申请日：2011-02-14
申请人： Daniel Gariepy , Gang He
发明人： Daniel Gariepy , Gang He
IPC分类号： H04B17/00 , H04B10/079
CPC分类号： H04B10/07953
摘要： There is provided a method for determining an in-band noise parameter, such as the Optical Signal-to-Noise Ratio (OSNR), on an optical signal-under-test (SUT) propagating along an optical communication link and comprising a data-carrying signal contribution of any arbitrary degree of polarization and a noise contribution. A spectral shape trace of data-carrying signal contribution in the SUT is estimated using a reference optical spectrum trace of a reference signal which comprises a data-carrying signal contribution that is spectrally representative of the data-carrying signal contribution of the SUT and a noise contribution which is at least approximately known. The data-carrying signal contribution is mathematically discriminated from said noise contribution in the SUT using the spectral shape trace and the test optical spectrum trace. The in-band noise parameter is then determined at least from the mathematically discriminated noise contribution.
摘要翻译：提供了一种用于在沿着光通信链路传播的光信号在测试（SUT）上确定带内噪声参数（诸如光信噪比（OSNR））的方法，并且包括数据 - 携带任何任意极化度和噪声贡献的信号贡献。使用参考信号的参考光谱轨迹来估计SUT中的数据携带信号贡献的谱形轨迹，该参考信号包括频谱上表示SUT的数据携带信号贡献的数据携带信号贡献，以及噪声贡献至少大致已知。使用光谱形状轨迹和测试光谱轨迹，数据载入信号贡献在数学上与SUT中的噪声贡献区分开。至少从数学识别的噪声贡献中确定带内噪声参数。

3. 发明申请

US20050073679A1 High optical rejection optical spectrum analyzer/monochromator 有权
标题翻译：高光抑制光谱分析仪/单色仪
公开(公告)号：US20050073679A1
公开(公告)日：2005-04-07
申请号：US10625528
申请日：2003-07-24
申请人： Gang He , Daniel Gariepy
发明人： Gang He , Daniel Gariepy
IPC分类号： G01J3/18 , G01J3/28
CPC分类号： G01J3/02 , G01J3/0202 , G01J3/021 , G01J3/0224 , G01J3/0294 , G01J3/18 , G01J2003/1819
摘要： A dual-channel, double-filtering, multi-pass OSA having a narrow spectral linewidth response and high ORR comprises a diffraction grating (DG), two input ports (P1′, P1″) for directing first and second input light beams (LR, LT) onto the grating; a retroreflector (RAM1) for returning the dispersed light beams to the grating for dispersion again; two intermediate output ports (P2′, P2″) for receiving the twice-dispersed light beams; two secondary input ports (P3′, P3″) coupled to the intermediate output ports by polarization-maintaining waveguides (PMF2′, PMF2″) for directing the light beams onto the grating a third time, with their SOPs having a predetermined orientation relative to the SOPs of the first and second light beams when first incident upon the grating, the retroreflector (RAM1) returning the three-times-dispersed light beams to the grating for dispersion a fourth time; and two output ports (P4′, P4″) for receiving the light beams after dispersion the fourth time.
摘要翻译：具有窄光谱线宽响应和高ORR的双通道双滤波多通道OSA包括衍射光栅（DG），用于引导第一和第二输入光束的两个输入端口（P1'，P1“） LR，LT）到光栅上; 用于将分散的光束返回到光栅以用于再分散的后向反射器（RAM1）; 用于接收两倍分散光束的两个中间输出端口（P2'，P2“）; 通过偏振保持波导（PMF2'，PMF2“）耦合到中间输出端口的用于将光束第三次引导到光栅上的两个次级输入端口（P3'，P3”），其SOP具有预定方向相对于第一和第二光束在第一次入射到光栅时的SOP，后向反射器（RAM1）将三次分散的光束第四次返回到光栅分散; 以及用于在第四次分散之后接收光束的两个输出端口（P4'，P4“）。

4. 发明申请

US20120201533A1 Reference-Based In-Band OSNR Measurement on Polarization-Multiplexed Signals 有权
标题翻译：极化复用信号的基于参考的带内OSNR测量
公开(公告)号：US20120201533A1
公开(公告)日：2012-08-09
申请号：US13501708
申请日：2011-02-14
申请人： Daniel Gariepy , Gang He
发明人： Daniel Gariepy , Gang He
IPC分类号： H04B10/08 , H04J14/06
CPC分类号： H04B10/07953
摘要： There is provided a method for determining an in-band noise parameter, such as the Optical Signal-to-Noise Ratio (OSNR), on an optical signal-under-test (SUT) propagating along an optical communication link and comprising a data-carrying signal contribution of any arbitrary degree of polarization and a noise contribution. A spectral shape trace of signal contribution in the SUT is estimated using a reference optical spectrum trace of a reference signal which comprises a signal contribution that is spectrally representative of the signal contribution of the SUT and a noise contribution which is at least approximately known. The signal contribution is mathematically discriminated from said noise contribution in the SUT using the spectral shape trace and the test optical spectrum trace. The in-band noise parameter is then determined at least from the mathematically discriminated noise contribution.
摘要翻译：提供了一种用于在沿着光通信链路传播的光信号在测试（SUT）上确定带内噪声参数（诸如光信噪比（OSNR））的方法，并且包括数据 - 携带任何任意极化度和噪声贡献的信号贡献。使用参考信号的参考光谱轨迹估计SUT中的信号贡献的光谱形状轨迹，该参考信号包括频谱上代表SUT的信号贡献的信号贡献和至少近似已知的噪声贡献。信号贡献在数学上与使用光谱形状轨迹和测试光谱轨迹的SUT中的噪声贡献进行区分。至少从数学识别的噪声贡献中确定带内噪声参数。

5. 发明授权

US09673894B2 Characterization of linear crosstalk on multiplexed optical signals 有权
公开(公告)号：US09673894B2
公开(公告)日：2017-06-06
申请号：US14009236
申请日：2012-05-28
申请人： Daniel Gariepy , Gang He
发明人： Daniel Gariepy , Gang He
IPC分类号： H04B10/07 , H04B10/079
CPC分类号： H04B10/07 , H04B10/0795 , H04B2210/07
摘要： There is provided a method of determining at least one linear-crosstalk-related parameter of an optical signal-under-test having, within an optical channel bandwidth, at least a data-carrying signal contribution and a wavelength-dependent linear-crosstalk contribution arising from a data-carrying signal contribution of an adjacent optical signal associated with an adjacent channel to the optical signal-under-test, the method comprising: acquiring at least one optical spectrum trace encompassing a quasi-continuum of closely-spaced wavelengths over a spectral range extending to at least part of both the signal under test and the adjacent optical signal; and estimating said linear-crosstalk contribution using at least spectral properties of said at least one optical spectrum trace; wherein one of said at least one linear-crosstalk-related parameter is the linear-crosstalk contribution and is determined from said estimating.

6. 发明申请

US20140086574A1 CHARACTERIZATION OF LINEAR CROSSTALK ON MULTIPLEXED OPTICAL SIGNALS 有权
标题翻译：线性CROSSTALK在多重光信号上的表征
公开(公告)号：US20140086574A1
公开(公告)日：2014-03-27
申请号：US14009236
申请日：2012-05-28
申请人： Daniel Gariepy , Gang He
发明人： Daniel Gariepy , Gang He
IPC分类号： H04B10/07
CPC分类号： H04B10/07 , H04B10/0795 , H04B2210/07
摘要： There is provided a method of determining at least one linear-crosstalk-related parameter of an optical signal-under-test having, within an optical channel bandwidth, at least a data-carrying signal contribution and a wavelength-dependent linear-crosstalk contribution arising from a data-carrying signal contribution of an adjacent optical signal associated with an adjacent channel to the optical signal-under-test, the method comprising: acquiring at least one optical spectrum trace encompassing a quasi-continuum of closely-spaced wavelengths over a spectral range extending to at least part of both the signal under test and the adjacent optical signal; and estimating said linear-crosstalk contribution using at least spectral properties of said at least one optical spectrum trace; wherein one of said at least one linear-crosstalk-related parameter is the linear-crosstalk contribution and is determined from said estimating.
摘要翻译：提供了一种确定在光信道带宽内至少具有数据承载信号贡献和波长相关线性串扰贡献的光信号未测试的至少一个线性 - 串扰相关参数的方法从与相邻信道相关联的相邻光信号的数据携带信号贡献对于未被测光信号，所述方法包括：获取包含频谱上紧密间隔波长的准连续体的至少一个光谱轨迹范围延伸到被测信号和相邻光信号的至少一部分; 以及使用所述至少一个光谱轨迹的至少光谱特性来估计所述线性串扰贡献; 其中所述至少一个线性串扰相关参数中的一个是线性 - 串扰贡献，并且根据所述估计确定。

7. 发明授权

US08358930B2 In-band optical signal to noise ratio determination method and system 有权
标题翻译：带内光信噪比确定方法和系统
公开(公告)号：US08358930B2
公开(公告)日：2013-01-22
申请号：US12594503
申请日：2008-04-04
申请人： Daniel Gariepy , Gang He , Yves Breton
发明人： Daniel Gariepy , Gang He , Yves Breton
IPC分类号： H04B10/08
CPC分类号： H04B10/07953
摘要： There is provided a method for determining the in-band noise in agile multichannel Dense Wavelength Division Multiplexing (DWDM) optical systems, where the interchannel noise is not representative of the in-band noise in the optical channel. The method relies on the analysis of two observations of the same input optical signal. In the two observations, the linear relationship between the optical signal contribution and the optical noise contribution (i.e. the observed OSNR) is different, which allows the discrimination of the signal and noise contributions in the input optical signal. In a first approach, the two observations are provided by polarization analysis of the input optical signal. In a second, the input optical signal is obtained using two different integration widths.
摘要翻译：提供了一种用于确定敏捷多通道密集波分复用（DWDM）光学系统中的带内噪声的方法，其中信道间噪声不代表光信道中的带内噪声。该方法依赖于对相同输入光信号的两次观察的分析。在两个观察中，光信号贡献与光噪声贡献（即观测到的OSNR）之间的线性关系是不同的，这允许在输入光信号中识别信号和噪声贡献。在第一种方法中，通过输入光信号的偏振分析来提供两个观察结果。一秒钟，使用两个不同的积分宽度获得输入光信号。

8. 发明申请

US20070165682A1 Widely-tunable laser apparatus 失效
标题翻译：广泛可调的激光设备
公开(公告)号：US20070165682A1
公开(公告)日：2007-07-19
申请号：US11652634
申请日：2007-01-12
申请人： Gang He , Daniel Gariepy , Hongxin Chen , Francois Babin
发明人： Gang He , Daniel Gariepy , Hongxin Chen , Francois Babin
IPC分类号： H01S3/10 , H01S3/083 , H01S3/08
CPC分类号： H01S3/083 , H01S5/141 , H01S5/4087
摘要： A widely-tunable laser apparatus comprises a plurality of tunable lasers having different ranges that overlap to encompass a desired operating range of wavelengths (for example from 1250 nm to 1650 nm) of the widely-tunable laser apparatus. The tunable lasers are tunable synchronously and selectively with their respective outputs connected in common to sweep the output of the widely-tunable laser apparatus substantially continuously over said operating range. The tunable lasers share the same tuning means which has a plurality of independent channels, each for light from a respective one of the tunable lasers.
摘要翻译：广泛可调谐的激光装置包括具有不同范围的多个可调激光器，其重叠以包含广泛可调激光装置的期望的波长（例如1250nm至1650nm）的工作范围。可调谐激光器可以同步和选择性地可调谐，其各自的输出共同连接，以在所述操作范围内基本连续地扫描广泛可调激光设备的输出。可调激光器共享相同的调谐装置，该调谐装置具有多个独立通道，每个独立通道用于来自可调激光器的相应一个的光。

9. 发明申请

US20100129074A1 IN-BAND OPTICAL SIGNAL TO NOISE RATIO DETERMINATION METHOD AND SYSTEM 有权
标题翻译：带内光信号噪声比测定方法与系统
公开(公告)号：US20100129074A1
公开(公告)日：2010-05-27
申请号：US12594503
申请日：2008-04-04
申请人： Daniel Gariepy , Gang He , Yves Breton
发明人： Daniel Gariepy , Gang He , Yves Breton
IPC分类号： H04B17/00 , H04B10/08
CPC分类号： H04B10/07953
摘要： There is provided a method for determining the in-band noise in agile multichannel Dense Wavelength Division Multiplexing (DWDM) optical systems, where the interchannel noise is not representative of the in-band noise in the optical channel. The method relies on the analysis of two observations of the same input optical signal. In the two observations, the linear relationship between the optical signal contribution and the optical noise contribution (i.e. the observed OSNR) is different, which allows the discrimination of the signal and noise contributions in the input optical signal. In a first approach, the two observations are provided by polarization analysis of the input optical signal. In a second, the input optical signal is obtained using two different integration widths.
摘要翻译：提供了一种用于确定敏捷多通道密集波分复用（DWDM）光学系统中的带内噪声的方法，其中信道间噪声不代表光信道中的带内噪声。该方法依赖于对相同输入光信号的两次观察的分析。在两个观察中，光信号贡献与光噪声贡献（即观测到的OSNR）之间的线性关系是不同的，这允许在输入光信号中识别信号和噪声贡献。在第一种方法中，通过输入光信号的偏振分析来提供两个观察结果。一秒钟，使用两个不同的积分宽度获得输入光信号。

10. 发明申请

US20050094934A1 Optical spectrum analyzer using a diffraction grating and multi-pass optics 有权
$Optical spectrum analyzer using a diffraction grating and multi-pass optics$
标题翻译：光谱分析仪采用衍射光栅和多通道光学
公开(公告)号：US20050094934A1
公开(公告)日：2005-05-05
申请号：US10986833
申请日：2004-11-15
申请人： Gang He , Daniel Gariepy , Gregory Schinn
发明人： Gang He , Daniel Gariepy , Gregory Schinn
IPC分类号： G02B5/30 , G02B6/28
CPC分类号： G02B5/3025
摘要： A polarization independent optical spectrum analyzer comprises a diffraction grating, input and output slit means and polarization-maintaining multi-pass optics for directing a light beam to and fro across the diffraction grating while maintaining its linear state of polarization. The optical spectrum analyzer further comprises a polarization control unit for decomposing a light beam for analysis into first and second beams having mutually orthogonal states of polarization (SOPs) and then adjusting one or both SOPs so that they are parallel to each other and to one of the dispersion plane of the diffraction grating which is rotated to select different wavelengths of the first and second light beams. The first and second light beams are passed across the diffraction grating repeatedly by multi-pass polarization-maintaining optics and are outputted and detected separately.
摘要翻译：偏振无关光谱分析仪包括衍射光栅，输入和输出狭缝装置和偏振保持多通道光学器件，用于引导光束穿过衍射光栅，同时保持其线性极化状态。光谱分析仪还包括：偏振控制单元，用于将用于分析的光束分解成具有相互正交偏振态（SOP）的第一和第二光束，然后调整一个或两个SOP，使得它们彼此平行并且与衍射光栅的色散平面被旋转以选择第一和第二光束的不同波长。第一和第二光束通过多通道偏振保持光学器件反复穿过衍射光栅，并分别输出和检测。

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