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1.发明申请公开(公告)号：US20060216035A1
公开(公告)日：2006-09-28
申请号：US09991154
申请日：2001-11-16
IPC分类号： H04B10/12
CPC分类号： H04B10/25253
摘要： A method of compensating for chromatic dispersion in an optical signal transmitted on a long-haul terrestrial optical communication system including a plurality of spans, including: allowing chromatic dispersion to accumulate over at least one of the spans to a first predetermined level; and compensating for the first pre-determined level of dispersion using a dispersion compensating fiber causing accumulation of dispersion to a second predetermined level. There is also provided a hybrid Raman/EDFA amplifier including a Raman portion and an EDFA portion with a dispersion compensating fiber disposed therebetween. An optical communication system and a method of communicating an optical signal using such a Raman/EDFA amplifier are also provided.
摘要翻译： 一种补偿在包括多个跨度的长途陆地光通信系统中发送的光信号中的色散的方法，包括：允许色散在所述跨度中的至少一个上积累到第一预定水平; 以及使用使色散累积到第二预定水平的色散补偿光纤来补偿第一预定等级的色散。 还提供了包括拉曼部分和EDFA部分的混合拉曼/ EDFA放大器，其间布置有色散补偿光纤。 还提供了一种光通信系统和使用这种拉曼/ EDFA放大器传送光信号的方法。
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公开(公告)号：US20050180757A1
公开(公告)日：2005-08-18
申请号：US09991126
申请日：2001-11-16
CPC分类号： H04B10/2916 , H04B2210/003
摘要： A system, amplifier and method are provided for amplifying an optical signal in an optical communications system where spans between amplifiers may vary. The system includes a Raman amplifier variable gain portion and an EDFA gain portion. The amount of Raman amplifier gain is chosen to trade off accumulation of noise with accumulation of multi-path interference. This variable Raman gain is used to equalize the loss of each span so that the amount of optical power supplied at the input of the EDFA gain portion is substantially constant throughout the system.
摘要翻译： 提供了一种用于放大光通信系统中的光信号的系统，放大器和方法，其中放大器之间的跨度可以变化。 该系统包括拉曼放大器可变增益部分和EDFA增益部分。 选择拉曼放大器增益的量来折算多路径干扰累积的噪声累积。 该可变拉曼增益用于均衡每个跨度的损耗，使得在EDFA增益部分的输入处提供的光功率的量在整个系统中基本上是恒定的。
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公开(公告)号：US07274880B2
公开(公告)日：2007-09-25
申请号：US09991126
申请日：2001-11-16
IPC分类号： H04B10/00
CPC分类号： H04B10/2916 , H04B2210/003
摘要： A system, amplifier and method are provided for amplifying an optical signal in an optical communications system where spans between amplifiers may vary. The system includes a Raman amplifier variable gain portion and an EDFA gain portion. The amount of Raman amplifier gain is chosen to trade off accumulation of noise with accumulation of multi-path interference. This variable Raman gain is used to equalize the loss of each span so that the amount of optical power supplied at the input of the EDFA gain portion is substantially constant throughout the system.
摘要翻译： 提供了一种用于放大光通信系统中的光信号的系统，放大器和方法，其中放大器之间的跨度可以变化。 该系统包括拉曼放大器可变增益部分和EDFA增益部分。 选择拉曼放大器增益的量来折算多路径干扰累积的噪声累积。 该可变拉曼增益用于均衡每个跨度的损耗，使得在EDFA增益部分的输入处提供的光功率的量在整个系统中基本上是恒定的。
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4.发明授权公开(公告)号：US07139489B2
公开(公告)日：2006-11-21
申请号：US09991154
申请日：2001-11-16
IPC分类号： H04B10/12
CPC分类号： H04B10/25253
摘要： A method of compensating for chromatic dispersion in an optical signal transmitted on a long-haul terrestrial optical communication system including a plurality of spans, including: allowing chromatic dispersion to accumulate over at least one of the spans to a first predetermined level; and compensating for the first pre-determined level of dispersion using a dispersion compensating fiber causing accumulation of dispersion to a second predetermined level. There is also provided a hybrid Raman/EDFA amplifier including a Raman portion and an EDFA portion with a dispersion compensating fiber disposed therebetween. An optical communication system and a method of communicating an optical signal using such a Raman/EDFA amplifier are also provided.
摘要翻译： 一种补偿在包括多个跨度的长途陆地光通信系统中发送的光信号中的色散的方法，包括：允许色散在所述跨度中的至少一个上积累到第一预定水平; 以及使用使色散累积到第二预定水平的色散补偿光纤来补偿第一预定等级的色散。 还提供了包括拉曼部分和EDFA部分的混合拉曼/ EDFA放大器，其间布置有色散补偿光纤。 还提供了一种光通信系统和使用这种拉曼/ EDFA放大器传送光信号的方法。
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5.发明申请Dispersion management in optical networks using a differential phase shift keying modulation format 失效使用差分相移键控调制格式的光网络中的色散管理公开(公告)号：US20060045533A1
公开(公告)日：2006-03-02
申请号：US11201762
申请日：2005-08-11
IPC分类号： H04B10/12
CPC分类号： H04B10/25253 , H04B10/2525
摘要： Dispersion may be managed in an optical network configured to transmit differential phase shift keying (DPSK) modulated signals by allowing accumulation of dispersion to thousands of ps/nm before compensating. A dispersion map providing a negative average dispersion and a minimum dispersion wavelength outside of the signal band may be employed.
摘要翻译： 色散可以在被配置为通过允许在补偿之前将色散累积到数千ps / nm来发送差分相移键控（DPSK）调制信号的光网络中进行管理。 可以采用提供负平均色散和信号频带之外的最小色散波长的色散图。
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公开(公告)号：US20060133822A1
公开(公告)日：2006-06-22
申请号：US11021726
申请日：2004-12-22
IPC分类号： H04B10/16
CPC分类号： H04B10/2935 , H04B10/2937
摘要： A communication system including a repeatered trunk path and one or more unrepeatered branch segments coupled to the trunk path through associated submarine branching units. Each of the branch segments may be configured to carry at least the same channel capacity as the trunk path and may have a length greater than the average repeater spacing in the trunk path.
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公开(公告)号：US20070183711A1
公开(公告)日：2007-08-09
申请号：US11350265
申请日：2006-02-08
IPC分类号： G02B6/28
CPC分类号： H04B10/25253
摘要： Dispersion may be managed in a branched optical network by using transmission segments having a single period segment dispersion map. One or more of such segments may be coupled to network nodes such as terminals or branching units such that dispersion may be managed even when the network is reconfigured. In one embodiment, a single period segment dispersion map provides dispersion compensation at the ends of the segment. In another embodiment, a single period segment dispersion-map provides dispersion compensation at the middle of the segment.
摘要翻译： 可以通过使用具有单个周期段色散映射的传输段在分支光网络中管理色散。 这些片段中的一个或多个可以耦合到诸如终端或分支单元的网络节点，使得即使在重新配置网络时也可以管理色散。 在一个实施例中，单周期段色散映射在段的末端提供色散补偿。 在另一个实施例中，单个周期段色散映射在该段的中间提供色散补偿。
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公开(公告)号：US20050147346A1
公开(公告)日：2005-07-07
申请号：US10975606
申请日：2004-10-28
申请人： Michael Vaa , Franklin Kerfoot , Georg Mohs , Ekaterina Golovchenko , Robert Lynch , Stuart Abbott , Howard Kidorf , Bamdad Bakhshi
发明人： Michael Vaa , Franklin Kerfoot , Georg Mohs , Ekaterina Golovchenko , Robert Lynch , Stuart Abbott , Howard Kidorf , Bamdad Bakhshi
IPC分类号： G02B20060101 , G02B6/26
CPC分类号： H04B10/25133 , G02B6/02214 , H04B10/2513
摘要： An apparatus and method directed to testing and optimizing performance of an optical transmission system is disclosed, including at least one broadband dispersion compensation unit (DCU) or at least one depolarization device. The depolarization device may be used alone or in combination with the at least one broadband DCU. A method for optimizing performance of data channels in initial loading (IL) and full loading (FL) configurations of the optical transmission system is also disclosed.
摘要翻译： 公开了一种用于测试和优化光传输系统性能的装置和方法，包括至少一个宽带色散补偿单元（DCU）或至少一个去极化设备。 去极化装置可以单独使用或与至少一个宽带DCU组合使用。 还公开了一种用于优化光传输系统的初始加载（IL）和全负载（FL）配置中的数据信道的性能的方法。
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9.发明授权公开(公告)号：US06567577B2
公开(公告)日：2003-05-20
申请号：US09113923
申请日：1998-07-14
申请人： Stuart M. Abbott , Neal Bergano , Stephen G. Evangelides , Ekaterina Golovchenko , George Harvey , Franklin W. Kerfoot, III , Chinlon Lin , Bo Pedersen
发明人： Stuart M. Abbott , Neal Bergano , Stephen G. Evangelides , Ekaterina Golovchenko , George Harvey , Franklin W. Kerfoot, III , Chinlon Lin , Bo Pedersen
IPC分类号： G02B628
CPC分类号： G02B6/29376 , H04B10/25253 , H04B2210/258
摘要： A WDM optical communication system is provided that includes a transmitter and a receiver. An optical fiber transmission path couples the transmitter to the receiver. The transmission path includes at least one repeater having an optical amplifier located therein. A dispersion compensator is disposed at an intermediate point along the transmission path. The intermediate point is located outside of the repeater. The compensator includes a wavelength routing device for dividing a signal having a prescribed bandwidth into a plurality of distinct sub-bands. A plurality of output paths is provided for respectively receiving the plurality of distinct sub-bands. The dispersion compensator also includes a dispersion compensating optical element coupled to each of the output paths. Each dispersion compensating optical element substantially compensates for dispersion at a prescribed wavelength within the bandpass of its respective sub-band. A coupler recombining the distinct sub-bands and couples them back onto the optical fiber transmission path.
摘要翻译： 提供了一种包括发射机和接收机的WDM光通信系统。 光纤传输路径将发射机耦合到接收机。 传输路径包括至少一个具有位于其中的光放大器的中继器。 色散补偿器设置在沿着传输路径的中间点处。 中间点位于中继器外部。 补偿器包括用于将具有规定带宽的信号划分成多个不同子带的波长路由设备。 提供多个输出路径用于分别接收多个不同的子带。 色散补偿器还包括耦合到每个输出路径的色散补偿光学元件。 每个色散补偿光学元件基本上补偿在其相应子带的带通内的规定波长的色散。 耦合器将不同的子带重新组合并将它们耦合回到光纤传输路径上。
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