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公开(公告)号：US06704519B1
公开(公告)日：2004-03-09
申请号：US09519654
申请日：2000-03-06
IPC分类号： H04B1000
CPC分类号： H04B10/2543
摘要： An optical transmission system is formed to include an optical phase conjugator at alternate repeater sites to minimize the presence of four-wave mixing and other Kerr effect nonlinearities in systems using optical fiber transmission paths (particularly in systems using DWDM and launching relatively high power signals into the low dispersion fiber). Raman gain is included in each fiber span (or in alternate fiber spans) so as to provide a “negative absorption” along the length of the fiber and thereby provide for essentially symmetrical power distribution along the length of each span, where the presence of such a symmetric,power distribution on each side of an optical phase conjugator has been found to significantly improve its performance.
摘要翻译： 光传输系统被形成为在交替的中继器位置包括光相位共轭器，以最小化使用光纤传输路径的系统中四波混频和其他克尔效应非线性的存在（特别是在使用DWDM的系统中并且发射相对较高的功率信号 低分散纤维）。 拉曼增益被包括在每个纤维跨度（或在交替的纤维跨度）中，以沿着纤维的长度提供“负吸收”，从而提供沿着每个跨度的长度的基本上对称的功率分布，其中存在这样的 已经发现在光相位共轭器的每一侧上的对称的功率分布显着提高其性能。
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公开(公告)号：US06556323B1
公开(公告)日：2003-04-29
申请号：US09505328
申请日：2000-02-16
IPC分类号： H04B1000
CPC分类号： H04B10/67 , H04B10/66 , H04J14/08 , H04L7/0075
摘要： An optical element for simultaneously retrieving the tributary data rate and the clock frequency from the line rate of an OTDM signal. The demultiplexing and clock recovery principle is based on injection locking of a high-Q-filtered and high gain loop with a variable phase delay and an EA-modulator with high non-linear response, i.e., absorption verses applied voltage. A modulator that is preferably an EA-modulator, an amplifier preferably an erbium doped fiber amplifier (“EDFA”), a base band receiver, an electronic amplifier, a high-Q filter, and a variable phase delay are arranged in a loop to provide an oscillator for simultaneously retrieving tributary data rate and clock frequency.
摘要翻译： 一种光学元件，用于从OTDM信号的线路速率同时检索支路数据速率和时钟频率。 解复用和时钟恢复原理基于具有可变相位延迟的高Q滤波和高增益环的注入锁定以及具有高非线性响应的EA调制器，即吸收与施加的电压的相乘。 优选地，EA调制器，放大器优选掺铒光纤放大器（“EDFA”），基带接收器，电子放大器，高Q滤波器和可变相位延迟的调制器循环到 提供一个振荡器，用于同时检索支路数据速率和时钟频率。
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3.发明授权Optical regeneration and wavelength conversion using semiconductor optical amplifier based interferometers 有权使用基于半导体光放大器的干涉仪的光学再生和波长转换公开(公告)号：US06614582B1
公开(公告)日：2003-09-02
申请号：US09499132
申请日：2000-02-07
IPC分类号： G02F135
CPC分类号： H04B10/299 , G02F2/004 , H04B10/2914
摘要： An optical translator that includes an interferometer and a plurality of semiconductor optical amplifiers (SOAs) coupled to the interferometer. The at least two of the SOAs receives data and a clock signal. The data is received by the at least two SOAs at different times. A coupler combines each of a respective output of the at least two SOAs to provide output data. The output data is a retimed and a reshaped signal of the data provided to at least one of the plurality of SOAs.
摘要翻译： 一种包括干涉仪和耦合到该干涉仪的多个半导体光放大器（SOAs）的光学译码器。 至少两个SOA接收数据和时钟信号。 该数据由不同时间的至少两个SOA接收。 耦合器组合至少两个SOA的相应输出中的每一个以提供输出数据。 输出数据是提供给多个SOA中的至少一个的数据的重新定时和重新整形信号。
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公开(公告)号：US06532090B1
公开(公告)日：2003-03-11
申请号：US09467429
申请日：2000-02-28
IPC分类号： H04J1402
CPC分类号： H04Q11/0005 , H04Q2011/0052 , H04Q2011/0075
摘要： A wavelength division multiplex (WDM) cross-connect architecture that can selectively cross-connect, at a wavelength granularity, wavelength channels from any of a plurality of input WDM optical facilities (e.g., fibers) to any of a plurality of output WDM optical facilities. The architecture is based on multi-wavelength modules, which are capable of routing simultaneously N wavelengths. The number of required modules scales only with k2 or less (i.e., k2 modules with N complexity), where k is the number of input/output fibers. The significant reduction in complexity is traded for a decrease in blocking performance; one of the disclosed architectures is strictly non-blocking in the space domain and rearrangeably non-blocking in the wavelength domain, whereas two others are rearrangeably non-blocking in both the wavelength and space domain. Since the wavelength channels are optically multiplexed in the interconnection fibers, only a small number of optical amplifiers are needed to compensate for the inevitable transmission loss in the interconnection fabric.
摘要翻译： 波分复用（WDM）交叉连接体系结构，其可以波长粒度选择性地将多个输入WDM光学设备（例如，光纤）中的任一个的波长信道交叉到多个输出WDM光学设备中的任何一个 。 该架构基于多波长模块，能够同时路由N个波长。 所需模块的数量只有k2或更小（即，具有N个复杂度的k2个模块）才能缩放，其中k是输入/输出光纤的数量。 复杂性的显着降低是阻止性能下降的交易; 所公开的架构之一在空间域中是严格非阻塞的，并且在波长域中可重新排列为非阻塞，而另外两个在波长和空间域中都是可重新排列的非阻塞的。 由于波长通道在互连光纤中被光学多路复用，所以仅需要少量光放大器来补偿互连结构中的不可避免的传输损耗。
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