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1. 发明授权

US06259555B1 Multi-band amplification system for dense wavelength division multiplexing 失效
标题翻译：用于密集波分复用的多波段放大系统
公开(公告)号：US06259555B1
公开(公告)日：2001-07-10
申请号：US09494783
申请日：2000-01-31
申请人： Fausto Meli , Gianpaolo Barozzi , Stefano Piciaccia , Stefano Aina , Silvia Turolla
发明人： Fausto Meli , Gianpaolo Barozzi , Stefano Piciaccia , Stefano Aina , Silvia Turolla
IPC分类号： H04J1402
CPC分类号： H04J14/0221
摘要： An optical transmission system has been designed to optimize the use of the spectral emission range of rare-earth-doped fiber amplifiers. The system includes a wide band of channels in the spectral emission range of erbium-doped fiber amplifiers, which is split into two sub-bands, a low sub-band corresponding to the low end of the range and a high sub-band corresponding to the high end of the range. The two sub-bands are separately amplified and optimized, and then recombined without significant competition between the two sub-bands. In addition, an equalizing filter, such as a specialized Bragg filter or interferential filter, is applied to the low sub-band instead of the entire band of channels, thus greatly reducing any equalization need or unequalization effects. In an optical line amplifier for the system, the wide band is amplified in a first stage of a fiber amplifier that operates in a linear condition, the wide band is split into the two sub-bands, and one or the two sub-bands is amplified with the second stage of the fiber amplifier that operates in a saturation condition.
摘要翻译：已经设计了一种光传输系统来优化稀土掺杂光纤放大器的光谱发射范围的使用。该系统包括在掺铒光纤放大器的光谱发射范围内的宽带信道，其被分成两个子带，对应于该范围的低端的低子带和对应于高端的范围。两个子带分别进行扩增和优化，然后在两个子带之间没有显着竞争的情况下重组。另外，诸如专用布拉格滤波器或干涉滤波器之类的均衡滤波器被应用于低子带而不是整个信道频带，从而大大减少了任何均衡需求或不平等效应。在用于该系统的光线路放大器中，宽带在光纤放大器的第一级被放大，其工作在线性状态，宽带被分成两个子带，一个或两个子带是用在饱和状态下工作的光纤放大器的第二级放大。

2. 发明授权

US06941079B1 Optical demultiplexer with multi-channel power control and tilt compensation 有权
标题翻译：光分路器具有多通道功率控制和倾斜补偿功能
公开(公告)号：US06941079B1
公开(公告)日：2005-09-06
申请号：US09865917
申请日：2001-05-24
申请人： Gianpaolo Barozzi , Cinzia Ferrari , Stefano Piciaccia
发明人： Gianpaolo Barozzi , Cinzia Ferrari , Stefano Piciaccia
IPC分类号： H04B10/00 , H04B10/08 , H04B10/158 , H04J14/02
CPC分类号： H04B10/077 , H04B10/07955 , H04B10/673 , H04J14/02 , H04J14/0221
摘要： Systems and methods for controlling power of WDM channels in a WDM receiver. A preamplifier is provided prior to a demultiplexer in the WDM receiver chain. The gain of the preamplifier may be controlled based on power measurements made on individual WDM channels. A filter with controllable tilt may be employed to compensate for amplifier gain tilt and assure that all of the WDM channels remain within the dynamic range of the photodetector and receiver electronics. This provides improved bit error rate performance.
摘要翻译：用于控制WDM接收机中WDM信道功率的系统和方法。在WDM接收机链中的解复用器之前提供前置放大器。可以基于在各个WDM信道上进行的功率测量来控制前置放大器的增益。可以采用具有可控倾斜的滤波器来补偿放大器增益倾斜，并确保所有WDM通道保持在光电检测器和接收器电子器件的动态范围内。这提供了改进的误码率性能。

3. 发明申请

US20110033187A1 SPLIT/SMART CHANNEL ALLOCATED WDM-PON ARCHITECTURE 有权
标题翻译： SPLIT /智能通道分配的WDM-PON架构
公开(公告)号：US20110033187A1
公开(公告)日：2011-02-10
申请号：US12535032
申请日：2009-08-04
申请人： Damiano Rossetti , Carlo Tosetti , Gianpaolo Barozzi
发明人： Damiano Rossetti , Carlo Tosetti , Gianpaolo Barozzi
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J2014/0253
摘要： Various example embodiments are disclosed. According to an example embodiment, a dual split passive optical network (PON) may be provided that includes an optical splitting device, and a first and second distribution fibers connected to the optical splitting device. A first cyclic AWG may be coupled to the optical splitting device via the first distribution fiber and a second cyclic AWG may be coupled to the optical splitting device via the second distribution fiber. In other example embodiments, an asymmetric power splitting ratio may be used for the splitting device, or optical seeds and/or optical data signals may be allocated to each of the cyclic AWGs based on a performance of the optical data signals and/or power loss/attenuation of the respective distribution fibers.
摘要翻译：公开了各种示例性实施例。根据示例实施例，可以提供包括光分路装置和连接到光分路装置的第一和第二分配光纤的双分离无源光网络（PON）。第一循环AWG可以经由第一分配光纤耦合到光分路装置，并且第二循环AWG可以经由第二分配光纤耦合到光分束装置。在其他示例实施例中，可以将分立装置使用不对称功率分配比，或者可以基于光数据信号的性能和/或功率损耗将光学种子和/或光学数据信号分配给每个循环AWG /衰减各分布纤维。

4. 发明授权

US07542674B1 Optical link performance monitoring 有权
标题翻译：光链路性能监控
公开(公告)号：US07542674B1
公开(公告)日：2009-06-02
申请号：US09865295
申请日：2001-05-24
申请人： Gianpaolo Barozzi , Mauro Macchi , Andrea Marchio
发明人： Gianpaolo Barozzi , Mauro Macchi , Andrea Marchio
IPC分类号： H04B10/08
CPC分类号： H04B10/0795
摘要： Systems and methods for verifying performance at an intermediate point in an optical link are provided by virtue of one embodiment of the present invention. One application is locating a fault along a long optical link while minimizing the need for trained personnel to inspect and monitor the link at numerous widely separated locations. At an intermediate point in the link, a portion of the optical signal present is tapped off and demodulated. By use of error correction decoding techniques on the demodulated data, the performance of the link up until that intermediate point may be verified.
摘要翻译：凭借本发明的一个实施例提供用于验证光链路中间点的性能的系统和方法。一个应用是沿着长的光链路定位故障，同时最小化对经过培训的人员在许多广泛分离的位置处检查和监视链路的需要。在链路的中间点处，存在的一部分光信号被分接并解调。通过对解调的数据使用纠错解码技术，可以验证直到该中间点的链路的性能。

5. 发明授权

US07116860B1 Coupler add/drop node WDM network architecture with periodic cleanup 有权
标题翻译：耦合器添加/删除节点WDM网络架构，定期清理
公开(公告)号：US07116860B1
公开(公告)日：2006-10-03
申请号：US10728535
申请日：2003-12-05
申请人： Ornan Gerstel , Valerio Viscardi , Stefano Piciaccia , Gianpaolo Barozzi
发明人： Ornan Gerstel , Valerio Viscardi , Stefano Piciaccia , Gianpaolo Barozzi
IPC分类号： G02B6/293
CPC分类号： H04J14/0204 , H01S3/0078 , H01S3/06758 , H04J14/0205 , H04J14/0206 , H04J14/0209 , H04J14/021 , H04J14/0219
摘要： A efficient and inexpensive optical WDM network architecture with add and drop couplers. Add couplers and drop couplers connected to a network optical fiber with wavelength blocker units which filter out optical signals at selected wavelengths on the optical fiber. The wavelength blocker units are distributed among the add and drop couplers so that each segment of the optical fiber between pairs of neighboring wavelength blocker units has at least three add and drop couplers. More specifically, each segment has the following relationship: THRU+ADD+DROP+LOCAL≦TOTAL where THRU is the number of channels passing through the segment; ADD is the number of channels added within the segment; DROP the number of channels dropped within the segment; LOCAL the number of channels confined within the segment; and TOTAL is the total capacity of the optical fiber.
摘要翻译：一种高效且廉价的具有加和耦合器的光学WDM网络架构。添加连接到具有波长阻挡单元的网络光纤的耦合器和降压耦合器，其滤除光纤上选定波长的光信号。波长阻挡单元分布在加和耦合器之间，使得相邻波长阻挡器单元对之间的光纤的每个段具有至少三个加和耦合耦合器。更具体地说，每个段具有以下关系：<？in-line-formula description =“In-line Formulas”end =“lead”？> THRU + ADD + DROP + LOCAL <= TOTAL <？in-line-formula description =“在线公式”end =“tail”？>其中THRU是通过段的通道数; ADD是在段内添加的通道数; 降低段内下降的通道数; 本地限制段内的通道数; 而TOTAL是光纤的总容量。

6. 发明授权

US08238750B2 Split/smart channel allocated WDM-PON architecture 有权
标题翻译：分流/智能信道分配WDM-PON架构
公开(公告)号：US08238750B2
公开(公告)日：2012-08-07
申请号：US12535032
申请日：2009-08-04
申请人： Damiano Rossetti , Carlo Tosetti , Gianpaolo Barozzi
发明人： Damiano Rossetti , Carlo Tosetti , Gianpaolo Barozzi
IPC分类号： H04J14/00
CPC分类号： H04J14/02 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J2014/0253
摘要： Various example embodiments are disclosed. According to an example embodiment, a dual split passive optical network (PON) may be provided that includes an optical splitting device, and a first and second distribution fibers connected to the optical splitting device. A first cyclic AWG may be coupled to the optical splitting device via the first distribution fiber and a second cyclic AWG may be coupled to the optical splitting device via the second distribution fiber. In other example embodiments, an asymmetric power splitting ratio may be used for the splitting device, or optical seeds and/or optical data signals may be allocated to each of the cyclic AWGs based on a performance of the optical data signals and/or power loss/attenuation of the respective distribution fibers.
摘要翻译：公开了各种示例性实施例。根据示例实施例，可以提供包括光分路装置和连接到光分路装置的第一和第二分配光纤的双分离无源光网络（PON）。第一循环AWG可以经由第一分配光纤耦合到光分路装置，并且第二循环AWG可以经由第二分配光纤耦合到光分束装置。在其他示例实施例中，可以将分立装置使用不对称功率分配比，或者可以基于光数据信号的性能和/或功率损耗将光学种子和/或光学数据信号分配给每个循环AWG /衰减各分布纤维。

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