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公开(公告)号：US06342962B2
公开(公告)日：2002-01-29
申请号：US08890669
申请日：1997-07-09
IPC分类号： H04B1000
CPC分类号： H04B10/25077
摘要： A system for transmitting signals in the form of soliton pulses over long distances using an optical conductor minimizes distortion of the transmitted soliton pulses using, in combination, a phase modulator to prevent temporal jitter of the soliton pulses and a set of filters of the type in which the frequency varies with the location of the filter or a set of saturable absorbent components to prevent deterioration of the signal to noise ratio of the pulses. Applications of the system include transoceanic optical communications.
摘要翻译： 使用光导体以长距离的孤子脉冲形式发送信号的系统使用相位调制器来组合地最小化所传输的孤子脉冲的失真，以防止孤子脉冲的时间抖动和一组类型的滤波器 其频率随过滤器的位置或一组饱和吸收组分的位置而变化，以防止脉冲信噪比的恶化。 该系统的应用包括跨洋光通信。
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公开(公告)号：US09031405B2
公开(公告)日：2015-05-12
申请号：US13379421
申请日：2010-06-25
CPC分类号： H04J14/0227 , H04K1/04 , H04K1/06
摘要： A method of transmitting optical signals in a submarine optical network and an optical unit for performing the method, the optical unit is configured for receiving an optical signal comprising a plurality of wavelengths where at least some of the wavelengths comprise traffic data. The optical unit includes a processor unit which is configured for scrambling the shape of at least one wavelength comprising traffic data of the optical signal so as to make said traffic data of said at least one wavelength undetectable for a receiver station.
摘要翻译： 一种在海底光网络和用于执行该方法的光学单元中发送光信号的方法，所述光学单元被配置为用于接收包括多个波长的光信号，其中至少一些波长包括业务数据。 光学单元包括处理器单元，其被配置为对包括光信号的业务数据的至少一个波长的形状进行加扰，以使得所述至少一个波长的所述业务数据对于接收机站不可检测。
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3.发明授权Elimination of optical power limitation due to stimulated raman scattering in fiber optic links 失效消除由于光纤链路中激发的拉曼散射引起的光功率限制公开(公告)号：US06529672B1
公开(公告)日：2003-03-04
申请号：US09228683
申请日：1999-01-12
IPC分类号： G02B626
CPC分类号： H04B10/2916 , H01S3/302 , H04B10/2537
摘要： In a fiber optic link signal or pump sending power limitations due to stimulated Raman scattering are pushed back by using attenuation in the Raman gain region. Various techniques are proposed for limiting stimulated Raman scattering. In particular, the use of optical fiber lightly doped with dysprosium, the attenuation of which increases rapidly beyond 1 500 nm, is proposed. The use of this fiber to transport pump power at 1 480 nm towards remote amplifiers would enable injection of pump power up to an order of magnitude of 10 W, whereas the limit is currently 1.3 W. This technique would enable the range of links to be increased approximately 80 km.
摘要翻译： 在光纤链路中，由于受激拉曼散射而发送功率限制的光纤链路信号或泵通过使用拉曼增益区域中的衰减而被推回。 提出了限制受激拉曼散射的各种技术。 特别地，提出了使用轻掺杂镝的光纤，其衰减迅速增加超过1500nm。 使用这种光纤将泵浦功率传输到1 480 nm远程放大器可以使泵浦功率的注入达到10 W的数量级，而限制是目前的1.3 W.这种技术将使链路范围成为 增加约80公里。
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公开(公告)号：US06317241B1
公开(公告)日：2001-11-13
申请号：US09579709
申请日：2000-05-26
IPC分类号： H04B1000
CPC分类号： H04B10/2525
摘要： A fiber optic transmission system includes a plurality of filters with a frequency varying as a function of the distance along the transmission system in the frequency band corresponding to the normal dispersion mode of the optical fiber. In a transmission system of the above kind, non-soliton RZ or NRZ signals are transmitted at frequencies corresponding to the normal dispersion mode of the fiber. Going against the widespread prejudice in the art, non-soliton RZ or NRZ signals are transmitted in the normal dispersion mode of the optical fiber and with sliding filtering. This enables non-soliton transmission in the normal dispersion mode over great distances with a high quality factor.
摘要翻译： 光纤传输系统包括多个滤波器，其频率随着在与光纤的正常色散模式对应的频带中的传输系统的距离而变化。 在上述传输系统中，以与光纤的正常色散模式对应的频率发送非孤子RZ或NRZ信号。 针对本领域广泛的偏见，非孤子RZ或NRZ信号以光纤的正常色散模式和滑动滤波传输。 这使得以非常孤立的方式在正常色散模式下以很高的距离传输高质量因子。
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公开(公告)号：US20120114335A1
公开(公告)日：2012-05-10
申请号：US13379421
申请日：2010-06-25
IPC分类号： H04J14/02
CPC分类号： H04J14/0227 , H04K1/04 , H04K1/06
摘要： A method of transmitting optical signals in a submarine optical network and an optical unit for performing the method, the optical unit is configured for receiving an optical signal comprising a plurality of wavelengths where at least some of the wavelengths comprise traffic data. The optical unit includes a processor unit which is configured for scrambling the shape of at least one wavelength comprising traffic data of the optical signal so as to make said traffic data of said at least one wavelength undetectable for a receiver station.
摘要翻译： 一种在海底光网络和用于执行该方法的光学单元中发送光信号的方法，所述光学单元被配置为用于接收包括多个波长的光信号，其中至少一些波长包括业务数据。 光学单元包括处理器单元，其被配置为对包括光信号的业务数据的至少一个波长的形状进行加扰，以使得所述至少一个波长的所述业务数据对于接收机站不可检测。
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公开(公告)号：US06681066B2
公开(公告)日：2004-01-20
申请号：US09913500
申请日：2001-08-16
IPC分类号： G02B626
CPC分类号： H04B10/2537
摘要： The invention proposes to increase the signal/noise ratio in a long-haul transmission system by: filtering noise (1) outside the range of wavelength of the signals transmitted, shifting (2) the wavelength of the signals transmitted, and filtering the signals transmitted (5) that have undergone wavelength shifting. The wavelength of the signals can be shifted by widening the spectrum of the signals or by optical phase conjugation.
摘要翻译： 本发明提出通过以下方法提高长距离传输系统中的信噪比：通过以下方式提高信号噪声（1）：发射信号波长范围之外的噪声（1），（2）发射信号的波长，滤波信号（ 已经经历波长偏移的信号波长可以通过扩大信号的频谱或通过光学相位共轭来移位。
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