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1.
公开(公告)号:US20150304042A1
公开(公告)日:2015-10-22
申请号:US14679235
申请日:2015-04-06
IPC分类号: H04B10/2575 , H04B10/25 , H04J14/02 , H04Q11/00
CPC分类号: H04Q11/0067 , H01S3/06754 , H01S3/1608 , H04B10/075 , H04B10/25751 , H04B10/25753 , H04J14/02 , H04J14/0205 , H04J14/0212 , H04J14/0221 , H04J14/0282 , H04Q2011/0015 , H04Q2011/0016
摘要: An active receiver structure that combines a large number of detectors without bandwidth penalty may provide a better signal-to-noise ratio (SNR) than conventional Radio Frequency over Glass (RFoG) networks. A transmission line receiver is used to combine a large number of optical detectors into a single radio frequency (RF) signal without a bandwidth penalty and a modest penalty in noise performance that results in an SNR that is much better than traditional optical combining techniques that are followed by a single detector. An optical multiplexer structure may be designed around the active splitter such that passive optical network (PON) operation is not impeded.
摘要翻译: 与传统的无线射频(RFoG)网络相比,组合大量没有带宽损失的检测器的有源接收机结构可提供更好的信噪比(SNR)。 传输线接收机用于将大量光学检测器组合成单个射频(RF)信号,而不会造成带宽损失和噪声性能的适度惩罚,导致SNR比传统的光学组合技术好得多 其次是单个检测器。 可以围绕主动分离器设计光复用器结构,使得无源光网络(PON)操作不受阻碍。
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2.
公开(公告)号:US20150304034A1
公开(公告)日:2015-10-22
申请号:US14677443
申请日:2015-04-02
IPC分类号: H04B10/2507 , H04J14/02 , H04B10/25
CPC分类号: H04B10/2575 , H04J14/0282 , H04J14/04
摘要: A multimode combiner or coupler (MMC) may combine the inputs into a larger core multimode fiber. The multimode combiner may be combined with a re-transmitting laser for detecting and re-transmitting signals. Thus, the multi-mode combiner may detect and combine input signals, and then retransmit the detected, combined signal. The detection can be implemented with multiple single mode fibers to small single mode detectors or a multi-mode coupler with a larger multi-mode detectors. In embodiments of the MMC, a bi-directional optical splitter/combiner includes a transmitter for re-transmitting an RF signal received at a receiver, a first wave division multiplexer (WDM) combiner combining the output of the first transmitter in an upstream direction to a downstream signal in a downstream direction, and a second WDM combiner combining split downstream signals in the downstream direction with upstream signals received via at least two optical fiber inputs.
摘要翻译: 多模组合器或耦合器(MMC)可以将输入组合成更大的核心多模光纤。 多模组合器可以与用于检测和再传输信号的再发射激光器组合。 因此,多模式组合器可以检测并组合输入信号,然后重发检测到的组合信号。 可以使用多个单模光纤到小单模式检测器或具有较大多模式检测器的多模耦合器来实现检测。 在MMC的实施例中,双向光分路器/组合器包括用于重新发射在接收机处接收的RF信号的发射机,将上游方向上的第一发射机的输出组合在一起的第一波分复用器(WDM)组合器, 下行方向的下行信号,以及第二WDM组合器,其将沿下游方向的分离的下行信号与经由至少两个光纤输入接收的上行信号组合。
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公开(公告)号:US09686014B2
公开(公告)日:2017-06-20
申请号:US14679235
申请日:2015-04-06
IPC分类号: H04B10/2575 , H04J14/02 , H04B10/075 , H04Q11/00
CPC分类号: H04Q11/0067 , H01S3/06754 , H01S3/1608 , H04B10/075 , H04B10/25751 , H04B10/25753 , H04J14/02 , H04J14/0205 , H04J14/0212 , H04J14/0221 , H04J14/0282 , H04Q2011/0015 , H04Q2011/0016
摘要: An active receiver structure that combines a large number of detectors without bandwidth penalty may provide a better signal-to-noise ratio (SNR) than conventional Radio Frequency over Glass (RFoG) networks. A transmission line receiver is used to combine a large number of optical detectors into a single radio frequency (RF) signal without a bandwidth penalty and a modest penalty in noise performance that results in an SNR that is much better than traditional optical combining techniques that are followed by a single detector. An optical multiplexer structure may be designed around the active splitter such that passive optical network (PON) operation is not impeded.
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公开(公告)号:US10972183B2
公开(公告)日:2021-04-06
申请号:US14677443
申请日:2015-04-02
IPC分类号: H04B10/2575 , H04J14/04 , H04J14/02
摘要: A multimode combiner or coupler (MMC) may combine the inputs into a larger core multimode fiber. The multimode combiner may be combined with a re-transmitting laser for detecting and re-transmitting signals. Thus, the multi-mode combiner may detect and combine input signals, and then retransmit the detected, combined signal. The detection can be implemented with multiple single mode fibers to small single mode detectors or a multi-mode coupler with a larger multi-mode detectors. In embodiments of the MMC, a bi-directional optical splitter/combiner includes a transmitter for re-transmitting an RF signal received at a receiver, a first wave division multiplexer (WDM) combiner combining the output of the first transmitter in an upstream direction to a downstream signal in a downstream direction, and a second WDM combiner combining split downstream signals in the downstream direction with upstream signals received via at least two optical fiber inputs.
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