公开(公告)号：US06819874B2

公开(公告)日：2004-11-16

申请号：US10420477

申请日：2003-04-22

申请人： Cecilia Y. Cheng ,  Robert R. Hayes ,  David A. Langsam ,  Andrew L. Strodtbeck

发明人： Cecilia Y. Cheng ,  Robert R. Hayes ,  David A. Langsam ,  Andrew L. Strodtbeck

IPC分类号： H04B1000

CPC分类号： H04B10/1125

摘要： An optical communication terminal transmits data via an optical signal with a transmit mirror positioned to direct the optical signal. The optical communication terminal includes a processor configured to develop a control signal for a mirror controller to establish an optimal position of the transmit mirror. The optical communication terminal further includes a modulator coupled to the processor that modulates the optical signal in accordance with a position of the transmit mirror during transmission of the optical signal. The optimal position of the transmit mirror may be established by a scanning routine that adjusts the position of the transmit mirror to a plurality of predetermined offset positions during transmission of the optical signal. The intensity of the optical signal as received by a further optical communication terminal is then determined and provided via modulation of a further optical signal transmitted back to the first-named optical communication terminal. The predetermined offset positions and the corresponding received intensities may then be utilized to determine the optimal position of the transmit mirror.

摘要翻译： 光通信终端经由光信号发射数据，发射镜定位成引导光信号。 光通信终端包括处理器，其被配置为开发用于镜像控制器的控制信号以建立发射镜的最佳位置。 光通信终端还包括耦合到处理器的调制器，其在光信号的传输期间根据发射镜的位置来调制光信号。 发射镜的最佳位置可以通过在光信号的传输期间将发射镜的位置调整到多个预定偏移位置的扫描程序来建立。 然后，由另一光通信终端接收的光信号的强度通过向第一命名的光通信终端发回的另外的光信号的调制来确定和提供。 然后可以利用预定的偏移位置和相应的接收强度来确定发射镜的最佳位置。

公开(公告)号：US06813448B1

公开(公告)日：2004-11-02

申请号：US09627831

申请日：2000-07-28

申请人： Joseph F. Chiappetta

发明人： Joseph F. Chiappetta

IPC分类号： H04B1000

CPC分类号： H04B10/2537

摘要： A transmitter that performs stimulated Brillouin scattering suppression is provided. The transmitter includes a non-linear device having an optical input adapted to receive an optical signal, an amplitude modulation input adapted to receive an amplitude modulation signal, a phase modulation input and an output. The transmitter also includes a stimulated Brillouin scattering (SBS) oscillator/driver having first and second oscillators coupled to the phase modulation input of the non-linear device and an amplifier coupled to the output of the non-linear device. The transmitter further includes a laser coupled to the optical input of the non-linear device.

摘要翻译： 提供执行受激布里渊散射抑制的发射机。 发射机包括具有适于接收光信号的光输入的非线性装置，适于接收幅度调制信号的幅度调制输入，相位调制输入和输出。 发射机还包括受激的布里渊散射（SBS）振荡器/驱动器，其具有耦合到非线性装置的相位调制输入的第一和第二振荡器以及耦合到非线性装置的输出的放大器。 发射机还包括耦合到非线性装置的光输入的激光器。

公开(公告)号：US06804466B1

公开(公告)日：2004-10-12

申请号：US09471548

申请日：1999-12-23

申请人： Moreno Gazzetta ,  Roger Scherrer ,  Dietrich Peter Stauffacher

发明人： Moreno Gazzetta ,  Roger Scherrer ,  Dietrich Peter Stauffacher

IPC分类号： H04B1000

CPC分类号： H04B10/508 ,  H04B10/503 ,  H04B10/66

摘要： An optical coding system is provided for a data transmission device with at least one laser transmitter and at least one laser receiver. The laser transmitter has a laser device and a code generator, and the laser receiver a detector device and an evaluation circuit. The detector device is designed for detecting a burst sequence (B1, B2, B3, . . . ), wherein the length d of the pulses of a burst is greater than 400 ns, and the length D of a burst consisting of a number b of pulses is less than 1000 &mgr;s.

摘要翻译： 为具有至少一个激光发射器和至少一个激光接收器的数据传输装置提供光学编码系统。 激光发射器具有激光装置和代码发生器，激光接收器具有检测器装置和评估电路。 检测器设备被设计用于检测突发序列（B1，B2，B3 ...），其中突发脉冲的长度d大于400ns，并且由数b组成的脉冲串的长度D 的脉冲小于1000微米。

公开(公告)号：US06804463B1

公开(公告)日：2004-10-12

申请号：US09823036

申请日：2001-03-29

申请人： Fulvio Arecco ,  Valerio Viscardi ,  Giacomo Losio

发明人： Fulvio Arecco ,  Valerio Viscardi ,  Giacomo Losio

IPC分类号： H04B1000

CPC分类号： H04Q11/0005 ,  H04Q2011/0043 ,  H04Q2011/0083

摘要： Systems and methods for reliable and low cost optical connection verification. One application is verification and monitoring of optical cross-connect performance. A connection is verified by splitting off optical signals at both ports of the connection, converting the signals to electrical signals, and then cross-correlating to verify connectivity between the ports. Lowpass filtering applied to the electrical signals may be applied to reduce the complexity of the cross-correlation.

摘要翻译： 用于可靠且低成本的光连接验证的系统和方法。 一个应用是光交叉连接性能的验证和监控。 通过在连接的两个端口分离光信号来验证连接，将信号转换为电信号，然后进行互相关以验证端口之间的连接。 可以应用施加到电信号的低通滤波来降低互相关的复杂度。

公开(公告)号：US06795657B1

公开(公告)日：2004-09-21

申请号：US09645497

申请日：2000-08-25

申请人： Masayuki Nakano

发明人： Masayuki Nakano

IPC分类号： H04B1000

CPC分类号： H04B10/0799

摘要： A circuit for monitoring an optical signal level provided in an optical receiver includes a clock extraction circuit, a noise detection circuit, and an alarm circuit. The clock extraction circuit extracts a clock from an input signal. The noise detection circuit multiplies the clock, utilizes the multiplied clock to identify surge noises included in the input signal, and outputs noise pulses. The alarm circuit counts the noise pulses and outputs an alarm signal when the number of the pulses counted within a certain period reaches a preset value. The surge noise is a noise having a level which is relatively increased as the input signal level is lowered.

摘要翻译： 用于监视在光接收器中提供的光信号电平的电路包括时钟提取电路，噪声检测电路和报警电路。 时钟提取电路从输入信号中提取时钟。 噪声检测电路将时钟相乘，利用倍增时钟来识别输入信号中包含的浪涌噪声，并输出噪声脉冲。 当在一定时间内计数的脉冲数达到预设值时，报警电路对噪声脉冲进行计数并输出报警信号。 浪涌噪声是具有随着输入信号电平降低而相对增加的电平的噪声。

公开(公告)号：US06782210B1

公开(公告)日：2004-08-24

申请号：US09644324

申请日：2000-08-23

申请人： Akira Okada ,  Kazutoshi Kato ,  Kazuto Noguchi ,  Yoshihisa Sakai ,  Takashi Sakamoto ,  Morito Matsuoka ,  Sen-ichi Suzuki

发明人： Akira Okada ,  Kazutoshi Kato ,  Kazuto Noguchi ,  Yoshihisa Sakai ,  Takashi Sakamoto ,  Morito Matsuoka ,  Sen-ichi Suzuki

IPC分类号： H04B1000

CPC分类号： H04Q11/0005 ,  H04Q11/0062 ,  H04Q11/0066 ,  H04Q2011/0011 ,  H04Q2011/0016 ,  H04Q2011/0032 ,  H04Q2011/0041 ,  H04Q2011/0069 ,  H04Q2011/0073 ,  H04Q2011/0083

摘要： An optical communication equipment comprises shared optical sources 88a-88d to be shared by communication nodes 100a-100d, the wavelengths of optical signals 76a-76d are converted into desired wavelengths &lgr;a-&lgr;d according to the addressed information of the corresponding optical label signals 77a-77d by using the shared optical sources 88a-88d and routed to the addressed communication nodes without being converted into electrical signals by using the wavelength routing function of the cyclic-wavelength arrayed-waveguide grating (AWG) 120. The load of each communication node can be reduced by incorporating the multi-wavelength optical sources, which can be shared among individual communication nodes, into the router 80. Further, each communication node is provided with an optical gate or the like for returning the optical signal to the communication node from which the optical signal has been transmitted through the router 80 in order to adjust the transmission time lag between the optical signal and the corresponding optical label signal by the controllers 110a-110d.

摘要翻译： 光通信设备包括由通信节点100a-100d共享的共享光源88a-88d，光信号76a-76d的波长根据对应的光标签信号77a-76d的寻址信息被转换成所需波长λa-lambdad 77d，通过使用共享光源88a-88d并通过使用循环波长阵列波导光栅（AWG）120的波长路由功能而被路由到寻址的通信节点而不被转换成电信号。每个通信节点的负载可以 可以通过将可以在各个通信节点之间共享的多波长光源并入到路由器80中来减少。另外，每个通信节点都设置有光栅等，用于将光信号返回到通信节点，通信节点从 光信号已通过路由器80传输，以便调整传输时间间隔 控制器110a-110d的光信号和对应的光标签信号。

公开(公告)号：US06782208B1

公开(公告)日：2004-08-24

申请号：US09440882

申请日：1999-11-16

申请人： Andrew S. Lundholm ,  Chris Grivas ,  Jeffrey T. Curtis ,  Julius S. Gyorfi

发明人： Andrew S. Lundholm ,  Chris Grivas ,  Jeffrey T. Curtis ,  Julius S. Gyorfi

IPC分类号： H04B1000

CPC分类号： H04B15/00 ,  H04B2215/062

摘要： A wireless communication device (10) includes a radio frequency transceiver (22) adapted for burst transmission responsive to a control signal in accordance with at least one communication protocol and an infrared transceiver (24) adapted for asynchronous data communication in coordination. The infrared transceiver (24) is responsive to the control signal to suspend an ongoing data communication for the duration of the burst transmission and to resume the data communication following the burst transmission. A controller (20) is coupled to each of the radio frequency communication module (22) and the infrared communication module (24), and the controller (20) is operable to generate the control signal in accordance with the at least one communication protocol.

摘要翻译： 无线通信设备（10）包括响应于根据至少一个通信协议的控制信号和适于协调的异步数据通信的红外收发器（24）适于突发传输的射频收发器（22）。 红外收发器（24）响应于控制信号在暂停传输的持续时间内暂停正在进行的数据通信，并且在突发传输之后恢复数据通信。 控制器（20）耦合到每个射频通信模块（22）和红外通信模块（24），并且控制器（20）可操作以根据至少一个通信协议生成控制信号。

公开(公告)号：US06763195B1

公开(公告)日：2004-07-13

申请号：US09482782

申请日：2000-01-13

申请人： Heinz Willebrand ,  Maha Achour

发明人： Heinz Willebrand ,  Maha Achour

IPC分类号： H04B1000

CPC分类号： H04B10/1123 ,  H04B10/114

摘要： A hybrid wireless optical and radio frequency (RF) communication link utilizes parallel free-space optical and RF paths for transmitting data and control and status information. The optical link provides the primary path for the data, and the RF link provides a concurrent or backup path for the network data, as well as a reliable and primary path for the control and status information. When atmospheric conditions degrade the optical link to the point at which optical data transmission fails, the hybrid communication link switches to the RF link to maintain availability of data communications. The switch may occur automatically, based on an assessment of the quality of the optical signal communicated through the optical path.

摘要翻译： 混合无线光和射频（RF）通信链路利用并行的自由空间光和RF路径来发送数据和控制和状态信息。 光链路为数据提供主要路径，RF链路为网络数据提供并行或备份路径，以及用于控制和状态信息的可靠和主路径。 当大气条件使光链路降级到光数据传输失败的时候，混合通信链路切换到RF链路，以保持数据通信的可用性。 基于通过光路传送的光信号的质量的评估，开关可以自动发生。

公开(公告)号：US06744989B2

公开(公告)日：2004-06-01

申请号：US09848606

申请日：2001-05-02

申请人： Takehiro Tsuritani ,  Yuichi Yamada ,  Noboru Edagawa ,  Masatoshi Suzuki

发明人： Takehiro Tsuritani ,  Yuichi Yamada ,  Noboru Edagawa ,  Masatoshi Suzuki

IPC分类号： H04B1000

CPC分类号： H04B10/2935 ,  H04J14/0221

摘要： An object of this invention is to improve transmission characteristics in WDM transmission. An optical transmitter (10) wavelength-multiplexes signal lights of wavelengths &lgr;1 through &lgr;n and outputs them onto an optical transmission line (12). Optical powers of the signal lights of the respective wavelength &lgr;1 through &lgr;n are identical or become smaller proportional to the wavelength. One repeater span of the optical transmission line (12) is composed of an optical fibers (20, 22) and an optical amplifier (24), and a gain equalizer (26) is dispersed every several repeater spans. The optical amplifier (24) in the repeater span amplifies each signal light so that optical power of a signal on the shorter wavelength side becomes smaller than that of a signal on the longer wavelength side. The gain equalizer (26) equalizes optical powers of the respective signal lights.

摘要翻译： 本发明的目的是提高WDM传输中的传输特性。 光发射机（10）将波长λ1至兰博的信号光波长多路复用并输出到光传输线路（12）上。 相应波长λ1至lambdan的信号光的光功率与波长成比例相同或变小。 光传输线（12）的一个中继器跨度由光纤（20,22）和光放大器（24）组成，增益均衡器（26）每隔几个中继器分散。 中继器中的光放大器（24）放大每个信号光，使得较短波长侧的信号的光功率变得比较长波长侧的信号的光功率小。 增益均衡器（26）使各个信号灯的光功率相等。

公开(公告)号：US06735396B2

公开(公告)日：2004-05-11

申请号：US09805378

申请日：2001-03-14

申请人： Alistair J. Poustie

发明人： Alistair J. Poustie

IPC分类号： H04B1000

CPC分类号： H04L7/0075 ,  H04B10/0795 ,  H04B10/291

摘要： A device and method for quantifying the amount of jitter experienced by an optical data pulse. During transmission data pulses may suffer jitter. Their arrival time at a node may be temporally offset from its predicted arrival time. Data pulses are timed so that they may be received at a detector disposed downstream of said node at a predetermined time. The device includes an optical AND gate, which has a first input arranged to receive a chirped pulse having a duration T, and whose wavelength varies in a monotonically over the duration of the pulse, the node having a second input arranged to receive a second data pulse. The node includes an optical gate arranged to generate an output pulse in response to the chirped pulse and the data pulse received at the first and second inputs, respectively, having a wavelength dependent upon the time at which the data pulse is received at the second input.

摘要翻译： 一种用于量化光学数据脉冲经历的抖动量的装置和方法。 在传输期间，数据脉冲可能会受到抖动。 它们在节点处的到达时间可能在时间上偏离其预计的到达时间。 数据脉冲被定时，使得它们可以在预定时间在位于所述节点下游的检测器处被接收。 该装置包括光学与门，其具有布置成接收具有持续时间T的啁啾脉冲的第一输入，并且其波长在脉冲的持续时间内单调地变化，该节点具有布置成接收第二数据的第二输入 脉冲。 该节点包括光栅，该光栅被布置为响应于啁啾脉冲和分别在第一和第二输入处接收的数据脉冲而产生输出脉冲，其具有取决于在第二输入处接收到数据脉冲的时间的波长 。