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81. 发明公开

EP1305658A2 ATHERMALIZATION AND PRESSURE DESENSITIZATION OF DIFFRACTION GRATING BASED WDM DEVICES 审中-公开
标题翻译：基于衍射光栅的WDM器件的热氧化和压敏光刻
公开(公告)号：EP1305658A2
公开(公告)日：2003-05-02
申请号：EP01972914.4
申请日：2001-06-01
申请人： Lightchip, Inc.
发明人： DUECK, Robert, H. , CAPPIELLO, Gregory, G.
IPC分类号： G02B6/00
CPC分类号： H04J14/02 , G01J3/02 , G01J3/0208 , G01J3/0286 , G01J3/14 , G01J3/18 , G01J3/2803 , G02B5/18 , G02B6/2931 , G02B6/2938 , G02B7/008 , G02B7/028 , G02B27/1073 , G02B27/1086 , G02B27/123 , G02B27/126 , H04B10/077 , H04B10/07955 , H04J14/0201 , H04J14/0206 , H04J14/0217
摘要： A wavelength division multiplexer/demultiplexer (WDM) for use in an optical network and in an optical performance monitor that minimizes increases in insertion losses over temperature variations. The WDM has a structure for holding at least one optical component. A diffraction grating assembly having a substrate is held in relation to the at least one optical component by the structure. A lens assembly having a focal length is held in relation to the at least one optical component. The coefficient of thermal expansion of the lens assembly and structure are approximately equal. The lens assembly is constructed from a material chosen to minimize its variance in focal length over temperature. The grating assembly has an angular dispersion that changes with temperature and the product of the focal length and angular dispersion remains constant over temperature. The WDM further comprises a prism having a change in index of refraction with temperature that is approximately equal to a negative of a coefficent of thermal expansion of the substrate. The substrate has a coefficient of thermal expansion approximately equal to a negative of a coefficient of thermal expansion of air.
摘要翻译：用于光网络和光学性能监测器的波分复用器/解复用器（WDM），可最大限度地降低温度变化时插入损耗的增加。 WDM具有用于保持至少一个光学部件的结构。具有基板的衍射光栅组件通过该结构相对于至少一个光学部件被保持。具有焦距的透镜组件相对于所述至少一个光学部件被保持。透镜组件和结构的热膨胀系数近似相等。镜头组件由选择的材料构成，以最大限度地减小焦距随温度的变化。光栅组件具有随温度变化的角色散，并且焦距和角色散的乘积在整个温度范围内保持恒定。 WDM还包括折射率随温度变化的棱镜，其大致等于衬底的热膨胀系数的负值。衬底具有大约等于空气的热膨胀系数的负值的热膨胀系数。

82. 发明授权

EP0821224B1 Optical power meter for detecting loss factors in fiber optic communications 失效
标题翻译：在光通信纤维检测损耗因子光功率计
公开(公告)号：EP0821224B1
公开(公告)日：2003-05-02
申请号：EP97305428.1
申请日：1997-07-21
申请人： Agilent Technologies, Inc. (a Delaware corporation)
发明人： Walsh, Peter J.
IPC分类号： G01M11/00
CPC分类号： H04B10/07955 , G01M11/33

83. 发明授权

EP0890229B1 METHOD OF DETERMINING OPTICAL AMPLIFIER FAILURES 失效
标题翻译：错误检测方法用于光放大器
公开(公告)号：EP0890229B1
公开(公告)日：2003-03-26
申请号：EP97900522.0
申请日：1997-01-22
申请人： Nortel Networks Limited
发明人： ROBERTS, Kim, Byron , O'SULLIVAN, Maurice, Stephen , HABEL, Richard, A. , KENNEDY, Christopher, Brendan
IPC分类号： H04B10/08 , H04B10/17
CPC分类号： H04B10/2912 , H04B10/07955 , H04B10/0797 , H04B10/2931 , H04B10/2971 , H04B2210/08

84. 发明授权

EP0717513B1 Method and system for indicating an optical transmit amplifier fault 失效
标题翻译：为错误的方法和设备显示一个光学发射放大器
公开(公告)号：EP0717513B1
公开(公告)日：2002-08-07
申请号：EP94119657.8
申请日：1994-12-13
申请人： ALCATEL N.V.
发明人： Moothart, Michael R. , Dugan, John Michael
IPC分类号： H04B10/08 , H04B10/17
CPC分类号： H04B10/291 , H04B10/077 , H04B10/07955 , H04B10/2912 , H04B2210/003

85. 发明公开

EP1226668A1 METHOD FOR MEASURING THE PERFORMANCE OF BROADBAND DENSE WAVELENGTH DIVISION MULTIPLEXER (DWDM) USING NON-LINEAR ITERATIVE ALGORITHM 审中-公开
标题翻译：法测量内稠密波长多路复用器不是线性的重复算法的性能
公开(公告)号：EP1226668A1
公开(公告)日：2002-07-31
申请号：EP00966690.0
申请日：2000-08-10
申请人： Anritsu Company
发明人： EVJENTH, Erik , ROBERTS, Neil
IPC分类号： H04B10/08
CPC分类号： H04B10/07955 , H04B10/077
摘要： A method for detecting the presence of signal channels in a wavelength-multiplexed optical signal comprises the steps of providing an initial estimate of channels to obtain a coarse spectral match, performing a coarse nonlinear deconvolutional algorithm on the wavelength-multiplexed optical signal, and finding peak power levels of the signal in the initially estimated channels. The signal channels are selected from the initially estimated channels based upon the peak power levels. In an embodiment, power levels in the signal channels of the wavelength-multiplexed optical signal are determined with refined accuracy by performing a fine nonlinear deconvolutional algorithm. In a further embodiment, the coarse and fine nonlinear deconvolutional algorithms are performed by using Jansson's nonlinear iterative method. The method is applicable to the testing of wavelength-multiplexed optical signals generated by broadband dense wavelength division multiplexers (DWDMs) and other optical communications devices.

86. 发明公开

EP1126635A9 CDMA MOBILE COMMUNICATION STATION, CDMA MOBILE COMMUNICATION SYSTEM, AND CDMA PACKET TRANSMISSION METHOD 审中-公开
标题翻译： CDMA移动通信台，CDMA移动电信设备和CDMA分组传输方法
公开(公告)号：EP1126635A9
公开(公告)日：2002-07-03
申请号：EP00944416.7
申请日：2000-07-13
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA
发明人： Kikuchi, Nobuo, Mitsubishi Denki K. K. , Shibuya, Akihiro, Mitsubishi Denki K.K.
IPC分类号： H04B7/26 , H04J13/04
CPC分类号： H04B10/07955 , H04B10/077 , H04W52/50
摘要： There is provided a CDMA mobile communication system in which in a case where packet data relating to one call is transmitted by wireless through a plurality of data channels by sharing predetermined control information, even when a transmission operation is permitted only in a case where the packet data exists, an abrupt change of transmission power can be suppressed. A transmitting station inhibits data transmission until the packet data is generated. In a case where the packet data is generated in such a state, the transmitting station starts data transmission through a first data channel IDCH1 in response to this. Thereafter, every time one frame has passed, the transmitting station sequentially starts data transmission through a second, a third and a fourth data channels IDCH2, IDCH3 and IDCH4. By this, an abrupt increase of the transmission power can be suppressed as compared with a case where the data transmission through all the data channels IDCH1 to ICDH4 is started at the same time.

87. 发明公开

EP1210781A1 DENSE WAVELENGTH DIVISION MULTIPLEXER (DWDM) MONITORING SYSTEM 审中-公开
标题翻译：监测系统密集波分复用
公开(公告)号：EP1210781A1
公开(公告)日：2002-06-05
申请号：EP00957376.7
申请日：2000-08-10
申请人： Anritsu Company
发明人： EVJENTH, Eric , ROBERTS, Neil
IPC分类号： H04B10/08
CPC分类号： H04B10/077 , H04B10/07955
摘要： An apparatus for determining the existence of signal channels in a wavelength-multiplexed optical signal and measuring the signal power levels within the channels roughly comprises a scanning filter, a power measurement device connected to the scanning filter, a controller connected to the scanning filter and the power measurement device, and a digital signal processor connected to the controller to perform numerical algorithms to determine power levels in the signal channels. A channel selector is connected to the scanning filter and the controller in an embodiment to select any one of the signal channels existing in the wavelength-multiplexed optical signal for output. The apparatus is applicable to measuring the performance of broadband dense wavelength division multiplexers (DWDMs) as well as other optical communications systems or devices.

88. 发明公开

EP1182808A2 Optical amplifier with pump light source control for raman amplification 有权
标题翻译： OptischerVerstärkermit Kontrolle des PumplichtesfürRamanverstärkung
公开(公告)号：EP1182808A2
公开(公告)日：2002-02-27
申请号：EP01106362.5
申请日：2001-03-16
申请人： FUJITSU LIMITED
发明人： Hayashi, Etsuko, Fujitsu Limited , Tanaka, Tomoto, Fujitsu Hokkaido Digital Techn.Ltd , Sugaya, Yasushi, Fujitsu Limited , Onaka, Miki, Fujitsu Limited
IPC分类号： H04B10/17
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/1301 , H01S3/302 , H04B10/0777 , H04B10/07955 , H04B10/0797 , H04B2210/077
摘要： A Raman amplifier for amplifying a wavelength division multiplexed (WDM) light including signal lights wavelength division multiplexed together. The amplifier includes an optical amplifying medium and a controller. The optical amplifying medium uses Raman amplification to amplify the WDM light in accordance with multiplexed pump lights of different wavelengths traveling through the optical amplifying medium. The WDM light is amplified in a wavelength band divided into a plurality of individual wavelength bands. The controller controls power of each pump light based on a wavelength characteristic of gain generated in the optical amplifying medium in the individual wavelength bands.
摘要翻译：一种用于放大波分复用（WDM）光的拉曼放大器，其包括波分复用在一起的信号光。放大器包括光放大介质和控制器。光放大介质使用拉曼放大来根据穿过光放大介质的不同波长的多路复用泵浦光放大WDM光。 WDM光被分成多个单独波长带的波长带放大。控制器基于在各个波长带中在光放大介质中产生的增益的波长特性来控制每个泵浦光的功率。

89. 发明公开

EP0790718A3 Method of identifying faults in WDM optical networks 失效
标题翻译：识别WDM光学网络中误差的方法
公开(公告)号：EP0790718A3
公开(公告)日：2002-02-27
申请号：EP97300870.9
申请日：1997-02-11
申请人： LUCENT TECHNOLOGIES INC.
发明人： Zyskind, John Lehrer
IPC分类号： H04B10/08
CPC分类号： H04B10/2912 , H04B10/077 , H04B10/07955 , H04B10/296 , H04J14/0221
摘要： In a WDM network employing optical amplifiers, detecting changes in the number of channels present in erbium doped fiber amplifiers (EDFA) (20) that are caused by faults or system reconfigurations is accomplished by monitoring the power of one signal channel and the power of the amplified spontaneous emission generated by the local EDFAs.

90. 发明公开

EP1151558A2 METHOD AND APPARATUS FOR OPTICAL PERFORMANCE MONITORING IN WAVELENGTH DIVISION MULTIPLEXED FIBER OPTICAL SYSTEMS 审中-公开
标题翻译：方法和装置在光纤波分复用系统光性能监控
公开(公告)号：EP1151558A2
公开(公告)日：2001-11-07
申请号：EP99939294.7
申请日：1999-08-27
申请人： E-Tek Electrophotonics Solutions Corporation
发明人： ALAVIE, Tino A. , XU, Ming Gang , ALLOS, Basil
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04J14/0221 , H04B10/077 , H04B10/07955 , H04Q11/0062 , H04Q2011/0083
摘要： The method and apparatus forming the present invention allows for rapid analysis of the optical spectrum and its content by controlling the spectral position of a channel select element and using a ratiometric wavelength and power determination technique to accurately analyze the transmitted or elected portion of the optical spectrum. The channel select element can be either a transmissive or reflective device which can be tuned by way of a control signal. The system can be operated in either scan and post process mode or in a continuous feedback mode where the position of the channel select element is determined by the ratiometric wavelength determination system and used to control the wavelength position of the channel select element. The ratiometric wavelength and power determination system, in its typical form, is based on dividing the spectrally encoded optical signal into two parts. One part of this signal passes through an optical filter with continuously increasing or decreasing transmission as a function of wavelength while the other part is unperturbed. The two parts are subsequently detected by optical to electrical detectors where the electrical signal is proportional to the optical signal. Dividing the two signals reveals a unique number which is a power independent representation of the input wavelength. The present invention advantageously provides a method and device to measure simultaneously several carriers and not just one. Furthermore, in the present invention, a power measurement is obtained by using the unfiltered part of the optical signal.

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