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81. 发明授权

US06580498B1 Optical return loss detector for optical transmission systems 有权
标题翻译：用于光传输系统的光回波损耗检测器
公开(公告)号：US06580498B1
公开(公告)日：2003-06-17
申请号：US09773707
申请日：2001-02-02
申请人： James Harley
发明人： James Harley
IPC分类号： G01N2100
CPC分类号： H04B10/07955 , H04B10/077 , H04J14/0227 , H04J14/0241 , H04J14/0278
摘要： The present invention provides an apparatus and method of detecting, on a per wavelength basis, optical return loss at the output of an optical circuit pack. The optical circuit pack can be, for example, an optical amplifier. At an output port and reflected port of the optical circuit pack apparatus for detecting signals is connected. The output power and reflected power are measured, and the optical return loss is calculated. The return loss may be calculated for signals on one or more wavelength channels.
摘要翻译：本发明提供了一种在每个波长的基础上检测光电路板的输出处的光回波损耗的装置和方法。光电路板可以是例如光放大器。在用于检测信号的光电路装置的输出端口和反射端口被连接。测量输出功率和反射功率，计算光回波损耗。可以针对一个或多个波长信道上的信号计算回波损耗。

82. 发明授权

US06570652B1 Athermalization and pressure desensitization of diffraction grating based spectrometer devices 失效
$Athermalization and pressure desensitization of diffraction grating based spectrometer devices$
公开(公告)号：US06570652B1
公开(公告)日：2003-05-27
申请号：US09724604
申请日：2000-11-28
申请人： Gregory G. Cappiello
发明人： Gregory G. Cappiello
IPC分类号： G01J328
CPC分类号： H04J14/02 , G01J3/02 , G01J3/0208 , G01J3/0286 , G01J3/14 , G01J3/18 , G01J3/2803 , G02B5/18 , G02B6/2931 , G02B6/29385 , G02B6/29398 , G02B7/008 , G02B7/028 , G02B27/1073 , G02B27/108 , G02B27/1086 , G02B27/123 , G02B27/126 , H04B10/077 , H04B10/07955 , H04J14/0201 , H04J14/0206 , H04J14/0217
摘要： A device for monitoring wavelength division multiplexed optical signals for use in an optical network and in an optical performance monitor. A device has a structure for supporting components of the device. An optical component is supported at one end of the structure for transmitting the optical signals. A diffraction grating is supported at an opposing end of the structure for diffracting the optical signals from the optical component. An optical sensor is supported in relation to the diffraction grating by the structure for monitoring the optical signals. A telephoto lens assembly is supported by the structure and disposed between the optical sensor and the diffraction grating, the lens assembly having a focal length for focusing the optical signals in relation to the optical sensor. Thermal effects on the structure are balanced against thermal effects on the lens assembly. A prism is disposed between the lens assembly and diffraction grating. The prism is configured to anamorphically compress the diffracted optical signals. Thermal effects on the diffraction grating are balanced against thermal effects on the lens and prism.

83. 发明申请

US20030066953A1 Method and apparatus for monitoring optical signal performance in wavelength division multiplexing system 有权
标题翻译：用于监测波分复用系统中光信号性能的方法和装置
公开(公告)号：US20030066953A1
公开(公告)日：2003-04-10
申请号：US10215038
申请日：2002-08-09
发明人： Seo-Won Kwon
IPC分类号： G01J004/00
CPC分类号： H04B10/07955 , H04B10/077
摘要： Disclosed is an apparatus for monitoring wavelength division multiplexed optical signal performance transmitted onto a main optical path. In particular, the apparatus includes: an amplified spontaneous light emitter for generating amplified spontaneous emission and transmitting the same to a reference optical path; at least one fiber bragg grating for sending out an amplified spontaneous emission having a reference wavelength by reflecting or absorbing only part of amplified spontaneous emission transmitted onto the reference optical path that consists with a reflection wavelength or an absorbance wavelength, in which a predetermined reflection wavelength or an absorbance wavelength are separately disposed on the reference optical path; an optical switch for outputting at least one of the wavelength division multiplexed optical signals branched from the main optical path or one of the amplified spontaneous emission including the reference wavelengths, in response to a switching control signal input; a tunable optical filter, of which filter characteristics vary corresponding to a filtering control signal with a designated form, for filtering off the optical signal outputted from the optical switch using the varied filter characteristics, and for outputting the filtered optical signal; and a control unit for analyzing a photo diode that converts an output of the tunable optical filter photoelectrically and an output of the photo diode in accordance with a predetermined algorithm, and for measuring an optical wavelength, an optical power and an optical signal to noise ratio of a wavelength division multiplexed optical signal based on the analyzed reference wavelength.
摘要翻译：公开了一种用于监测传输到主光路上的波分复用光信号性能的装置。特别地，该装置包括：放大的自发光发射器，用于产生放大的自发发射并将其发射到参考光路; 至少一个光纤布拉格光栅，用于通过反射或仅吸收传输到由反射波长或吸收波长组成的参考光路上的放大的自发辐射的一部分来发出具有参考波长的放大的自发发射，其中预定的反射波长或吸收波长分别设置在基准光路上; 响应于切换控制信号输入，用于输出从主光路分支的波分复用光信号中的至少一个或包括参考波长的放大自发发射中的至少一个的光开关; 滤波器特性根据具有指定形式的滤波控制信号而变化的可调滤光器，用于滤波使用变化的滤波器特性从光开关输出的光信号，并输出滤波后的光信号; 以及控制单元，用于分析根据预定算法将可调光滤波器的光电输出和光电二极管的输出转换的光电二极管，并且用于测量光波长，光功率和光信噪比基于所分析的参考波长的波分复用光信号。

84. 发明申请

US20030048498A1 Optical performance monitor 有权
标题翻译：光学性能监视器
公开(公告)号：US20030048498A1
公开(公告)日：2003-03-13
申请号：US09986479
申请日：2001-11-08
发明人： Matt Pearson , Lynden Erickson , John Miller , Siegfried Janz , Dan-Xia Xu , Pavel Cheben , Andre Delage , Boris Lamontagne , Sylvain Charbonneau
IPC分类号： H04B010/08 , H04J014/02
CPC分类号： H04B10/077 , G01J3/02 , G01J3/0259 , G01J3/0286 , G01J3/1809 , G02B6/12007 , G02B6/29326 , G02B6/29385 , G02B6/29398 , G02B6/4215 , H04B10/07955 , H04J14/02
摘要： An optical performance monitor for measuring the performance of optical networks has an echelle grating for demultiplexing an input beam into a plurality of wavelengths that are focused onto an array of divided output waveguides. Each divided output waveguide is positioned to receive a corresponding demultiplexed wavelength from the echelle grating or other waveguide multiplexer device. The divided output waveguides laterally separate the corresponding demultiplexed wavelength into a first and second portions. A detector array is positioned to receive the respective portions of the demultiplexed wavelengths and by comparing their relative intensity it is possible to detect any drift in the nominal wavelengths of the channels.
摘要翻译：用于测量光网络性能的光学性能监视器具有用于将输入光束解复用为聚焦到分割的输出波导阵列上的多个波长的梯形光栅。每个划分的输出波导被定位成从梯形光栅或其它波导复用器装置接收相应的解复用波长。分割的输出波导将相应的解复用波长横向分离成第一和第二部分。检测器阵列被定位成接收解复用波长的各个部分，并且通过比较它们的相对强度，可以检测通道的标称波长中的任何漂移。

85. 发明授权

US06522434B1 System and method for determining optical loss characteristics of optical fibers in an optical fiber network 失效
标题翻译：用于确定光纤网络中光纤的光损耗特性的系统和方法
公开(公告)号：US06522434B1
公开(公告)日：2003-02-18
申请号：US09374020
申请日：1999-08-13
申请人： Mark Richard Jennings , Frank Salvatore Leone , Richard Joseph Pimpinella
发明人： Mark Richard Jennings , Frank Salvatore Leone , Richard Joseph Pimpinella
IPC分类号： H04B1008
CPC分类号： H04B10/077 , H04B10/07955
摘要： A system and method for determining the optical loss characteristics of optical fibers in an optical fiber network. An optical transmission module is provided. The optical transmission module produces a light signal and an electrical signal that contains data regarding the characteristics of the light signal being generated. The light signal output of the optical transmitter module is connected to the input of a calibrated optical switch. The outputs of the optical switch are connected to the optical fibers that are to be tested. At the opposite ends of the optical fibers, a second optical switch is provided. The second optical switch connects the various optical fibers to a monitor module. The monitor module detects the light signal transmitted by the optical transmitter module through the various optical fibers. The monitor module converts the received light signal into a corresponding electrical signal. A systems controller is coupled to both the optical transmitter module and the monitor module.
摘要翻译：一种用于确定光纤网络中光纤的光损耗特性的系统和方法。提供光传输模块。光传输模块产生光信号和包含关于所生成的光信号的特性的数据的电信号。光发射机模块的光信号输出连接到校准光开关的输入端。光开关的输出端与要测试的光纤连接。在光纤的相对端设有第二光开关。第二光开关将各种光纤连接到监视器模块。监视器模块通过各种光纤检测由光发射模块发射的光信号。监视器模块将接收到的光信号转换成相应的电信号。系统控制器耦合到光发射机模块和监视器模块。

86. 发明申请

US20030002109A1 Eye safety shutdown 审中-公开
标题翻译：眼睛安全关机
公开(公告)号：US20030002109A1
公开(公告)日：2003-01-02
申请号：US09897165
申请日：2001-06-29
发明人： Jim Hochberg , Rien Gahlsdorf , Tim Ireland , Ted Wyman
IPC分类号： H04B010/08 , H04B010/00
CPC分类号： H04B10/077 , H04B10/07955
摘要： A method of minimizing a risk of damage to human tissue, caused by an exposure to an amount of laser radiation in excess of a maximum permissible exposure level performed in an optical transceiver having at least two photodetectors and at least two laser transmitters. The method involves monitoring at least one of the photodetectors for receipt of an optical signal; determining if a received optical signal satisfies at least one expected activity criterion; and, if the received optical signal does not satisfy the at least one expected activity criterion, determining that an eye safety fault condition exists and causing a shut down of at least one of the at least two laser transmitters. An optical transceiver with multiple optical devices includes a transmit channel; a receiver channel; an eye safety channel; and a controller, coupled to the transmit channel and eye safety channel. The controller is configured to receive information based upon a monitoring of the eye safety channel and shut down the transmit channel when the information indicates that an eye safety fault has occurred.
摘要翻译：一种使由具有至少两个光电检测器和至少两个激光发射器的光收发器中执行的超过最大许可暴露水平的激光辐射量暴露于人体组织损伤的风险最小化的方法。该方法包括监视至少一个光电检测器以接收光信号; 确定所接收的光信号是否满足至少一个预期活动标准; 并且如果所接收的光信号不满足所述至少一个预期活动标准，则确定眼睛安全故障状况存在并导致至少两个激光发射器中的至少一个的关闭。具有多个光学装置的光收发器包括发射信道; 接收机通道; 眼睛安全通道; 以及耦合到发射信道和眼睛安全信道的控制器。控制器被配置为当信息指示发生眼睛安全故障时，基于眼睛安全信道的监视来接收信息并关闭发送信道。

87. 发明申请

US20030002098A1 System and method for measuring power of optical signals carried over a fiber optic link 失效
标题翻译：用于测量通过光纤链路承载的光信号功率的系统和方法
公开(公告)号：US20030002098A1
公开(公告)日：2003-01-02
申请号：US10178570
申请日：2002-06-24
发明人： John C. Carrick , Paul C. Talmadge , Eric B. Saint Georges , Stuart D. Brorson
IPC分类号： H04B010/08 , H04J014/02
CPC分类号： H04J14/0221 , H04B10/077 , H04B10/07955
摘要： A pilot tone generator receives optical energy from an optical communication medium carrying a plurality of optical signals. Each optical signal carries data modulated at a unique wavelength and further modulated with a unique identification signal. The identification signal has an amplitude corresponding to an optical power of the associated optical signal. The pilot tone receiver detects each identification signal from the optical energy received and determines its corresponding amplitude. The pilot tone receiver calculates the optical power of each optical signal in the optical energy in response to the amplitude of the associated identification signal.
摘要翻译：导频音产生器从携带多个光信号的光通信介质接收光能。每个光信号承载以独特波长进行调制的数据，并用唯一的识别信号进一步调制。识别信号具有对应于相关联的光信号的光功率的幅度。导频音接收器从接收的光能检测每个识别信号，并确定其对应的幅度。导频音接收器响应于相关联的识别信号的幅度来计算光能中每个光信号的光功率。

88. 发明授权

US06490080B2 Gain controlled optically pre-amplified receiver apparatus and method 有权
标题翻译：增益控制光学预放大接收机装置及方法
公开(公告)号：US06490080B2
公开(公告)日：2002-12-03
申请号：US09746216
申请日：2000-12-22
申请人： Steven W. Cornelius , Robert Corwin
发明人： Steven W. Cornelius , Robert Corwin
IPC分类号： H01S300
CPC分类号： H04B10/2931 , H01S3/06754 , H01S3/1301 , H04B10/077 , H04B10/07955
摘要： An optical amplifier is added to the input of a photodetector to perform optical pre-amplification of an input optical signal before it is converted to an electrical signal by the photodetector. A controller utilizes a received power level to control a pump power level of a pump injecting pumping light into the optical amplifier. The pump power level is controlled in order to control the optical gain of the optical amplifier. The received power level may be measured by a receiving device that includes the photodetector and a power measuring device. The pump output power level may also be fed back to the controller to monitor the pump. A dual pass EDFA may be used as the optical amplifier and coupled to a selector to save space and reduce noise.
摘要翻译：光放大器被添加到光电检测器的输入端，以在由光电检测器转换成电信号之前执行输入光信号的光学预放大。控制器利用接收的功率电平来控制将泵浦光注入到光放大器中的泵的功率水平。控制泵功率电平以控制光放大器的光学增益。接收功率电平可以由包括光电检测器和功率测量装置的接收装置测量。泵输出功率水平也可以反馈到控制器以监测泵。双通道EDFA可用作光放大器，并耦合到选择器以节省空间并降低噪声。

89. 发明申请

US20020163690A1 Flexible and low cost wavelength management for optical networking 审中-公开
标题翻译：灵活且低成本的光网络波长管理
公开(公告)号：US20020163690A1
公开(公告)日：2002-11-07
申请号：US10184884
申请日：2002-07-01
发明人： Dan Dan Yang
IPC分类号： H04J014/02
CPC分类号： H04J14/0221 , H04B10/077 , H04B10/07955 , H04B2210/258
摘要： A method and devices for individually controlling the signal strength of single or multiple optical channels. A controller module monitors the signal strength of channels and amplifies those that need amplifying while attenuating those that are too strong using the same Erbium doped fiber amplifier. A controllable compensation module receives at least one channel and, when required, can either amplify or attenuate the signal strength of the channels. The module can be constructed out of a single fiber with an associated pump laser. If the laser provides insufficient pumping power, the fiber acts as an attenuator. If the laser provides a higher level of pump power, the fiber acts as an amplifier.
摘要翻译：用于单独控制单个或多个光学信道的信号强度的方法和装置。控制器模块监视通道的信号强度，并放大需要放大的信号，同时使用相同的掺铒光纤放大器衰减那些太强的信号。可控补偿模块接收至少一个通道，并且在需要时可以放大或衰减通道的信号强度。该模块可以由具有相关泵激光器的单根光纤构成。如果激光器提供的泵浦功率不足，则光纤作为衰减器。如果激光器提供更高水平的泵浦功率，则光纤作为放大器。

90. 发明申请

US20020130256A1 Spectrum, time and protocol domain optical performance monitor 审中-公开
标题翻译：频谱，时间和协议域光学性能监视器
公开(公告)号：US20020130256A1
公开(公告)日：2002-09-19
申请号：US10096284
申请日：2002-03-13
发明人： David Macki , Dave Rodgers , Lawrence Tarof , Scott Bradshaw
IPC分类号： G01J001/34
CPC分类号： H04J14/02 , G01J3/26 , H04B10/077 , H04B10/07955
摘要： A spectrum, time and protocol optical power monitor is disclosed. This device utilizes a same photodetector to perform spectral optical monitoring of an incoming optical signal, as well as performing timing and protocol monitoring for preselected wavelength channels. Advantageously the device uses a same passband tunable optical filter for both the spectrum and timing/protocol measurements. The spectral response of the filter passband is deconvolved from the spectral scan in order to achieve improved spectral scan resolution, and the timing and protocol measurements are not degraded by the passband of the filter.
摘要翻译：公开了一种光谱，时间和协议光功率监视器。该器件利用相同的光电检测器对输入光信号进行光谱光学监测，以及对预选的波长信道执行定时和协议监控。有利的是，器件对频谱和定时/协议测量使用相同的通带可调谐光学滤波器。滤波器通带的频谱响应从光谱扫描中去卷积，以便实现改进的光谱扫描分辨率，定时和协议测量不会被滤波器的通带降级。

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