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1. 发明授权

US06381047B1 Passive optical network using a fabry-perot laser as a multiwavelength source 失效
标题翻译：无源光网络采用fabry-perot激光器作为多波长源
公开(公告)号：US06381047B1
公开(公告)日：2002-04-30
申请号：US09119411
申请日：1998-07-20
申请人： Nicholas J. Frigo , Patrick P. Iannone , Kenneth C. Reichmann , Sheryl L. Woodward
发明人： Nicholas J. Frigo , Patrick P. Iannone , Kenneth C. Reichmann , Sheryl L. Woodward
IPC分类号： H04J1402
CPC分类号： H04Q11/0062 , H04B10/506 , H04J14/02 , H04J14/0221 , H04J14/0298 , H04Q11/0067 , H04Q2011/0032
摘要： A passive optical network (PON) comprises an optical device for producing light at a plurality of optical frequencies, an optical receiver for receiving light produced by the optical device, and a wavelength division multiplexer for transmitting the light produced by the optical device to the optical receiver, the wavelength division multiplexer having passbands centered at respective center frequencies, the center frequencies being different than the optical frequencies.
摘要翻译：无源光网络（PON）包括用于产生多个光学频率的光的光学装置，用于接收由光学装置产生的光的光学接收器和用于将由光学装置产生的光发送到光学器件的波分复用器接收机，波分复用器具有以各个中心频率为中心的通带，中心频率不同于光频率。

2. 发明授权

US5631757A Full-duplex data communication system using different transmit and receive data symbol lengths 失效
标题翻译：全双工数据通信系统采用不同的发送和接收数据符号长度
公开(公告)号：US5631757A
公开(公告)日：1997-05-20
申请号：US473848
申请日：1995-06-07
申请人： George E. Bodeep , Sheryl L. Woodward
发明人： George E. Bodeep , Sheryl L. Woodward
IPC分类号： H04L5/14 , H04B10/24 , H04B10/00
CPC分类号： H04L5/1476 , H04L5/1423
摘要： A data communication system includes a novel transceiver which uses different transmit and receive data symbol lengths enabling the transceiver to operate in a full-duplex mode. The transceiver transmits data of a first type over a communication link during a first time period, and receives data of a second type over the link during a second time period which is longer than the first time period and which overlaps a portion of the first time period. In one embodiment, the transceiver switches a transmitting means to the link during the first time period and connects a receiving means to the link during a portion of the second time period which does not overlap the first time period.
摘要翻译：数据通信系统包括使用不同发射和接收数据符号长度的新型收发器，其使收发器能够以全双工模式工作。收发机在第一时间段期间通过通信链路发送第一类型的数据，并且在第二时间段期间通过链路接收第二类型的数据，该第二时间段比第一时间段长，并且与第一时间段的一部分重叠期。在一个实施例中，收发器在第一时间段期间将发送装置切换到链路，并且在第二时间段的不与第一时间段重叠的部分期间将接收装置连接到链路。

3. 发明申请

US20070286605A1 Tunable bidirectional multiplexer/demultiplexer for optical transmission system 有权
标题翻译：用于光传输系统的可调双向多路复用器/解复用器
公开(公告)号：US20070286605A1
公开(公告)日：2007-12-13
申请号：US11448339
申请日：2006-06-07
申请人： Mark D. Feuer , Sheryl L. Woodward
发明人： Mark D. Feuer , Sheryl L. Woodward
IPC分类号： H04J14/02
CPC分类号： H04J14/0204 , H04J14/0209 , H04J14/021 , H04J14/0212 , H04J14/0213
摘要： A tunable bidirectional multiplexer/demultiplexer (MUX/DEMUX) is disclosed for adding and dropping wavelength channels between an optical transmission system and at least one optical transceiver. The MUX/DEMUX includes at least one add port for adding wavelength channels to the optical transmission system, at least one drop port for dropping wavelength channels from the optical transmission system, and at least one first optical circulator coupled to the at least one drop port and the at least one add port. The MUX/DEMUX further includes at least one 1×N wavelength-selective switch having a single input/output port on a first side for receiving and outputting multiplexed optical signals, and a plurality of input/output ports on a second side for receiving a plurality of multiplexed or individual optical signals, where the input/output port on the first side is coupled to the at least one first optical circulator, and at least one of the input/output ports on the second side of the at least one wavelength-selective switch configured as a transceiver port. At least one second optical circulator is coupled to the at least one transceiver port on a second side of the at least one wavelength-selective switch, and further to a line transmitter and line receiver of the at least one optical transceiver. The at least one wavelength-selective switch and ports are configured such that an optical signal communicated from the at least one transceiver port to the at least one add port follows a first optical path, and an optical signal communicated from the at least one drop port to the at least one transceiver port follows a second optical path, where a portion of the first and second optical paths are the same.
摘要翻译：公开了一种可调谐双向多路复用器/解复用器（MUX / DEMUX），用于在光传输系统和至少一个光收发器之间添加和删除波长信道。 MUX / DEMUX包括至少一个用于向光传输系统添加波长信道的添加端口，用于从光传输系统丢弃波长信道的至少一个丢弃端口以及耦合到该至少一个引入端口的至少一个第一光循环器和至少一个添加端口。 MUX / DEMUX还包括至少一个1xN波长选择开关，其具有用于接收和输出复用光信号的第一侧上的单个输入/输出端口，以及在第二侧上的多个输入/输出端口，用于接收多个多路复用或单独的光信号，其中第一侧上的输入/输出端口耦合到至少一个第一光环行器，以及至少一个波长选择开关的第二侧的输入/输出端口中的至少一个配置为收发器端口。至少一个第二光循环器耦合到至少一个波长选择开关的第二侧上的至少一个收发器端口，并且还耦合到至少一个光收发器的线路发射器和线路接收器。所述至少一个波长选择性开关和端口被配置为使得从所述至少一个收发器端口传送到所述至少一个附加端口的光信号遵循第一光路，并且从所述至少一个分接端口至少一个收发器端口遵循第二光路，其中第一和第二光路的一部分是相同的。

4. 发明授权

US07127181B2 System for mitigating the effects of fiber dispersion by separate detection of two transmitted sidebands 失效
标题翻译：用于通过分离检测两个发送边带来减轻光纤色散影响的系统
公开(公告)号：US07127181B2
公开(公告)日：2006-10-24
申请号：US11197699
申请日：2005-08-04
申请人： Alan H. Gnauck , Cedric F. Lam , Sheryl L. Woodward
发明人： Alan H. Gnauck , Cedric F. Lam , Sheryl L. Woodward
IPC分类号： H04B10/00 , H04B10/06 , H04B10/08 , H04B17/00
CPC分类号： H04B10/2507
摘要： Link robustness, chromatic dispersion and polarization mode dispersion (PMD) immunity can be improved in fiber optical system by using a method for receiving an optical double sideband signal over an optical fiber system, comprising the steps of splitting the received optical double sideband signal into an upper sideband signal and a lower sideband signal, photodetecting the upper sideband and the lower sideband, equalizing the photodetected upper sideband signal and the lower sideband signal, and combining the equalized upper sideband signal with the equalized lower sideband signal. While PMD compensation is envisioned as a major application, one may also use the method and system for chromatic dispersion compensation or dispersion slope compensation in high bit rate systems, i.e. using dispersion compensation fiber (DCF) for coarse compensation and diversity receiver with electrical equalizer for fine tuning.
摘要翻译：通过使用用于在光纤系统上接收光学双边带信号的方法，可以在光纤系统中改善链路鲁棒性，色散和偏振模色散（PMD）抗扰度，包括以下步骤：将接收到的光双边带信号分割为上侧边带信号和下边带信号，对上边带和下边带进行受光，均衡受光的上边带信号和下边带信号，并将均衡的上边带信号与均衡的下边带信号进行组合。虽然PMD补偿被设想为主要应用，但是也可以在高比特率系统中使用用于色散补偿或色散斜率补偿的方法和系统，即使用用于粗调补偿的色散补偿光纤（DCF）和具有电均衡器的分集接收器微调。

5. 发明授权

US5373385A Method and apparatus for reduction of optical communication system impairments 失效
标题翻译：用于减少光通信系统损伤的方法和装置
公开(公告)号：US5373385A
公开(公告)日：1994-12-13
申请号：US151600
申请日：1993-11-12
申请人： Thomas E. Darcie , Sheryl L. Woodward
发明人： Thomas E. Darcie , Sheryl L. Woodward
IPC分类号： H01S3/10 , H04B10/02 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152 , H04B10/18 , H04B10/00
CPC分类号： H04B10/2537
摘要： A method and apparatus for reducing noise in optical communication systems is effected by modulating or dithering the laser output frequency at a relatively low rate. The laser may be dithered by applying a low frequency sine wave either to the resistive heater in the phase control section or to the laser's active section directly. By dithering the laser at a low frequency and at a sufficiently high amplitude to cause large optical frequency excursions, the noise caused by multipath interference will decrease without substantially increasing negative dispersion effects.
摘要翻译：用于降低光通信系统中的噪声的方法和装置通过以相对低的速率调制或抖动激光输出频率来实现。可以通过将低频正弦波施加到相位控制部分中的电阻加热器或直接对激光器的有源部分来激发激光。通过以低频和足够高的幅度使激光器抖动以引起大的光频率偏移，由多径干扰引起的噪声将降低而基本上不增加负色散效应。

6. 发明授权

US08131150B2 Tunable bidirectional multiplexer/demultiplexer for optical transmission system 有权
标题翻译：用于光传输系统的可调双向多路复用器/解复用器
公开(公告)号：US08131150B2
公开(公告)日：2012-03-06
申请号：US11448339
申请日：2006-06-07
申请人： Mark D. Feuer , Sheryl L. Woodward
发明人： Mark D. Feuer , Sheryl L. Woodward
IPC分类号： H04J14/02 , H04J14/00
CPC分类号： H04J14/0204 , H04J14/0209 , H04J14/021 , H04J14/0212 , H04J14/0213
摘要： A tunable bidirectional multiplexer/demultiplexer (MUX/DEMUX) is disclosed for adding and dropping wavelength channels between an optical transmission system and at least one optical transceiver. The MUX/DEMUX includes at least one add port for adding wavelength channels, at least one drop port for dropping wavelength channels, and at least one first optical circulator coupled to the at least one drop port and the at least one add port. The MUX/DEMUX further includes at least one 1×N wavelength-selective switch coupled to the at least one first optical circulator, and at least one second optical circulator coupled to at least one transceiver port on a second side of the at least one wavelength-selective switch, where the optical circulators and switching components are disposed within a common housing. The at least one wavelength-selective switch and ports are configured such that an optical signal communicated from the at least one transceiver port to the at least one add port follows a first optical path, and an optical signal communicated from the at least one drop port to the at least one transceiver port follows a second optical path, where a portion of the first and second optical paths are the same.
摘要翻译：公开了一种可调谐双向多路复用器/解复用器（MUX / DEMUX），用于在光传输系统和至少一个光收发器之间添加和删除波长信道。 MUX / DEMUX包括至少一个用于添加波长信道的添加端口，用于丢弃波长信道的至少一个丢弃端口，以及耦合到该至少一个丢弃端口和至少一个添加端口的至少一个第一光学循环器。 MUX / DEMUX还包括耦合到所述至少一个第一光环行器的至少一个1×N波长选择开关，以及耦合到所述至少一个波长的第二侧上的至少一个收发器端口的至少一个第二光循环器选择开关，其中光学循环器和开关部件设置在公共壳体内。所述至少一个波长选择性开关和端口被配置为使得从所述至少一个收发器端口传送到所述至少一个附加端口的光信号遵循第一光路，并且从所述至少一个分接端口至少一个收发器端口遵循第二光路，其中第一和第二光路的一部分是相同的。

7. 发明授权

US5717712A Laser communication system with temperature controlled 失效
标题翻译：具有温度控制的激光通讯系统
公开(公告)号：US5717712A
公开(公告)日：1998-02-10
申请号：US527240
申请日：1995-09-12
申请人： Venkataraman Swaminathan , Sheryl L. Woodward , George E. Bodeep
发明人： Venkataraman Swaminathan , Sheryl L. Woodward , George E. Bodeep
IPC分类号： H01L23/38 , G02B6/42 , H01S3/04 , H01S5/00 , H01S5/024 , H04B10/155 , H01S3/08
CPC分类号： H04B10/503 , G02B6/4257 , G02B6/4268 , G02B6/4279 , G02B6/4274
摘要： A temperature controlled mounting package for a fiber optic communication laser, mounted within an adapter, which is in thermal contact with a heat exchange element. The heat exchange element may be a thermoelectric cooling element or a resistance heater which maintains the laser within a temperature band. By keeping the temperature bandwidth to 40 degrees Centigrade, the signal variations are held to within 1 dB in fiber-optic applications.
摘要翻译：一种用于光纤通信激光器的温度控制安装封装，安装在与热交换元件热接触的适配器内。热交换元件可以是将激光器维持在温度带内的热电冷却元件或电阻加热器。通过将温度带宽保持在40摄氏度，信号变化在光纤应用中保持在1 dB以内。

8. 发明授权

US5022730A Wavelength tunable optical filter 失效
标题翻译：波长可调滤光片
公开(公告)号：US5022730A
公开(公告)日：1991-06-11
申请号：US449040
申请日：1989-12-12
申请人： Leonard J. Cimini , Isam M. I. Habbab , Sheryl L. Woodward
发明人： Leonard J. Cimini , Isam M. I. Habbab , Sheryl L. Woodward
IPC分类号： G02B6/12 , G02F1/00 , G02F1/025 , G02F1/035 , G02F1/225
CPC分类号： G02F1/225
摘要： A wavelength tunable optical filter having a characteristic single transmission peak for enhanced tunability comprises a phase control section positioned between a Distributed Bragg Reflector section and a high reflectivity mirror. The Distributed Bragg Reflector section comprises a periodic region grating positioned over an end portion of a passive waveguide whereas the phase control section comprises the portion of the passive waveguide region located between the grating and the mirror. Continuous tunability in the range of several THz may be achieved by controlling the refractive index in either the phase control or distributed Bragg reflector section. The optical filter is expected to have a frequency switching time of a few nanoseconds and, thus, is applicable to both transmission and switching applications.
摘要翻译：具有用于增强可调性的特征性单传输峰值的波长可调光滤波器包括位于分布式布拉格反射器部分和高反射镜之间的相位控制部分。分布布拉格反射器部分包括位于无源波导的端部上的周期性区域光栅，而相位控制部分包括位于光栅和反射镜之间的无源波导区域的部分。在几个THz的范围内的连续可调性可以通过控制相位控制或分布式布拉格反射器部分中的折射率来实现。光滤波器预计具有几纳秒的频率切换时间，因此适用于传输和切换应用。

9. 发明授权

US06959154B1 Diversity receiver for mitigating the effects of fiber dispersion by separate detection of the two transmitted sidebands 有权
标题翻译：分集接收机，用于通过分离检测两个发送的边带来减轻光纤色散的影响
公开(公告)号：US06959154B1
公开(公告)日：2005-10-25
申请号：US09722646
申请日：2000-11-28
申请人： Alan H. Gnauck , Cedric F. Lam , Sheryl L. Woodward
发明人： Alan H. Gnauck , Cedric F. Lam , Sheryl L. Woodward
IPC分类号： G02B6/00 , H04B10/02 , H04B10/18 , H04B10/00 , H04B10/06 , H04B10/08 , H04B17/00
CPC分类号： H04B10/2507
摘要： Link robustness, chromatic dispersion and polarization mode dispersion (PMD) immunity can be improved in fiber optical system by using a method for receiving an optical double sideband signal over an optical fiber system, comprising the steps of splitting the received optical double sideband signal into an upper sideband signal and a lower sideband signal, photodetecting the upper sideband and the lower sideband, equalizing the photodetected upper sideband signal and the lower sideband signal, and combining the equalized upper sideband signal with the equalized lower sideband signal. While PMD compensation is envisioned as a major application, one may also use the method and system for chromatic dispersion compesation or dispersion slope compensation in high bit rate systems, i.e. using dispersion compensation fiber (DCF) for coarse compensation and diversity receiver with electrical equalizer for fine tuning.
摘要翻译：通过使用用于在光纤系统上接收光学双边带信号的方法，可以在光纤系统中改善链路鲁棒性，色散和偏振模色散（PMD）抗扰度，包括以下步骤：将接收到的光双边带信号分割为上侧边带信号和下边带信号，对上边带和下边带进行受光，均衡受光的上边带信号和下边带信号，并将均衡的上边带信号与均衡的下边带信号进行组合。虽然PMD补偿被设想为主要应用，但也可以在高比特率系统中使用用于色散补偿或色散斜率补偿的方法和系统，即使用用于粗略补偿的色散补偿光纤（DCF）和具有电均衡器的分集接收器微调。

10. 发明授权

US5299212A Article comprising a wavelength-stabilized semiconductor laser 失效
标题翻译：文章包括波长稳定的半导体激光器
公开(公告)号：US5299212A
公开(公告)日：1994-03-29
申请号：US28881
申请日：1993-03-10
申请人： Thomas L. Koch , Sheryl L. Woodward
发明人： Thomas L. Koch , Sheryl L. Woodward
IPC分类号： H04J14/00 , H01S5/00 , H01S5/024 , H01S5/0625 , H01S5/068 , H01S5/0683 , H01S5/0687 , H04B10/04 , H04B10/06 , H04B10/14 , H04J14/02 , H01S3/137 , H01S3/10 , H01S3/133
CPC分类号： H01S5/0687 , H01S5/02415 , H01S5/06256 , H01S5/06837
摘要： The disclosed article comprises a semiconductor laser (typically a multi-segment DBR laser) and feedback means for controlling the laser wavelength. The wavelength reference element in the feedback means advantageously is an optical fiber comprising an in-line refractive index grating. Such gratings frequently have a transmission spectrum that exhibits subsidiary lobes, in addition to the desired main lobe, potentially compromising the "cold-start" ability of prior art systems. This and other drawbacks of prior art systems exemplarily are overcome by apparatus that comprises a feedback loop that comprises means for causing a current I.sub.B to flow to the "Bragg" section of a multi-segment DBR laser such that wavelength of the laser output is a function of I.sub.B, and that further comprises means for changing the temperature of the laser in response to a change in the wavelength of the laser. Use of a wavelength reference element that has a relatively wide primary minimum facilitates cold starting. Exemplarily, the disclosed article is a wavelength division multiplexed (WDM) optical fiber communication system.
摘要翻译：所公开的文章包括半导体激光器（通常是多段DBR激光器）和用于控制激光波长的反馈装置。反馈装置中的波长参考元件有利地是包括直列折射率光栅的光纤。除了所需的主瓣之外，这种光栅经常具有展现副叶的透射光谱，潜在地危及现有技术系统的“冷启动”能力。示例性地，现有技术系统的这个和其它缺点被包括反馈回路的装置克服，该反馈回路包括用于使电流IB流向多段DBR激光器的“布拉格”部分的装置，使得激光输出的波长为 IB的功能，并且还包括用于响应于激光器的波长的变化来改变激光器的温度的装置。使用具有相对较宽的初级最小值的波长参考元件便于冷启动。示例性地，所公开的文章是波分复用（WDM）光纤通信系统。

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