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1.发明授权公开(公告)号：US06707600B1
公开(公告)日：2004-03-16
申请号：US10029676
申请日：2001-12-21
IPC分类号： H01S300
CPC分类号： H01S5/0021 , H01S5/06825 , H01S5/0683 , H01S5/18308 , H01S5/22 , H01S5/50 , H01S5/5063 , H01S5/5072
摘要： Early warning failure detetection is provided for an optical amplifier. The optical amplifier is based on a lasing semiconductor optical amplifier, which generates a ballast laser signal in addition to the amplified optical signal. The ballast laser signal exhibits a wavelength shift before failure and this wavelength shift is used as the basis for an early warning of future failure of the amplifier.
摘要翻译： 为光放大器提供预警故障检测。 光放大器基于激光半导体光放大器，除了放大的光信号之外还产生镇流激光信号。 镇流器激光信号在故障之前呈现波长偏移，并且该波长偏移被用作用于放大器将来故障的早期警告的基础。
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2.发明授权公开(公告)号：US06906856B1
公开(公告)日：2005-06-14
申请号：US10702242
申请日：2003-11-06
CPC分类号： H01S5/0021 , H01S5/06825 , H01S5/0683 , H01S5/18308 , H01S5/22 , H01S5/50 , H01S5/5063 , H01S5/5072
摘要： Optical systems and devices are provided that include or facilitate the ability to provide early detection of the failure of an optical transmitter such as a laser. Such detection may be made with reference to various aspects of the operation and performance of the optical transmitter. For example, some of the optical systems and devices employ wavelength shift information to make determinations concerning potential failure of an optical transmitter. Other optical systems and devices use information concerning the efficiency with which an incoming pump current is converted into the ballast laser signal changes to make determinations concerning potential failure of an optical transmitter.
摘要翻译： 提供了包括或有助于提供诸如激光器的光发射器的故障的早期检测的能力的光学系统和装置。 可以参考光发射机的操作和性能的各个方面进行这种检测。 例如，一些光学系统和设备使用波长偏移信息来做出关于光发射机的潜在故障的确定。 其他光学系统和设备使用关于输入泵浦电流被转换成镇流器激光信号的效率的信息改变以做出关于光发射机的潜在故障的确定。
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3.发明授权Integrated optical device including a vertical lasing semiconductor optical amplifier 有权集成光学器件包括垂直激光半导体光放大器公开(公告)号：US07110169B1
公开(公告)日：2006-09-19
申请号：US10014679
申请日：2001-12-11
申请人： Jeffrey D. Walker , Sol P. DiJaili
发明人： Jeffrey D. Walker , Sol P. DiJaili
IPC分类号： H01S3/00
CPC分类号： H01S5/026 , H01S5/1032 , H01S5/18311 , H01S5/2009 , H01S5/2027 , H01S5/5027 , H01S5/5072
摘要： An intergrated optical device comprises a vertically lasing semiconductor optical amplifier (VLSOA) and an optical element integrated onto a common substrate. Example optical elements include waveguides, unguided transparent regions, and active optical devices (including additional VLSOAs). The integrated device may be fabricated using a number of different methods, including based on selective area epitaxy, impurity induced disordering, etch and fill and silicon optical bench.
摘要翻译： 集成的光学器件包括垂直激光半导体光放大器（VLSOA）和集成在公共衬底上的光学元件。 示例性光学元件包括波导，非指导透明区域和有源光学器件（包括额外的VLSOAs）。 集成器件可以使用多种不同的方法制造，包括基于选择性面积外延，杂质诱导的无序，蚀刻和填充以及硅光学平台。
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公开(公告)号：US07009760B2
公开(公告)日：2006-03-07
申请号：US10844017
申请日：2004-05-12
CPC分类号： H04B10/299 , H01S5/50
摘要： Optical regenerators are disclosed, one of which includes a splitter having an input signal input, and first and second outputs, where the first output is connected to a first input of an optical flip-flop that also includes an output. A first OAND gate includes a first input connected to the output of the optical flip-flop, and also includes a second input and an output. A second OAND gate has a first input connected to the second output of the splitter, and includes a second input and an output. A variable oscillator having an input and an output is arranged so that the output is connected to the second input of the second OAND gate and to the second input of the first OAND gate. Finally, a feedback controller has an input connected to the second OAND gate output, and an output connected to the variable oscillator input.
摘要翻译： 公开了一种光学再生器，其中之一包括具有输入信号输入的分路器和第一和第二输出，其中第一输出端连接到还包括输出的光学触发器的第一输入端。 第一OAND门包括连接到光学触发器的输出的第一输入，并且还包括第二输入和输出。 第二OAND门具有连接到分路器的第二输出的第一输入，并且包括第二输入和输出。 具有输入和输出的可变振荡器被布置成使得输出连接到第二OAND门的第二输入和第一OAND门的第二输入。 最后，反馈控制器具有连接到第二OAND门输出的输入和连接到可变振荡器输入的输出。
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公开(公告)号：US07027213B2
公开(公告)日：2006-04-11
申请号：US10925248
申请日：2004-08-24
申请人： Sol P. DiJaili , Jeffrey D. Walker
发明人： Sol P. DiJaili , Jeffrey D. Walker
IPC分类号： H01S3/00
CPC分类号： H01S5/18311 , H01S5/0285 , H01S5/0622 , H01S5/0683 , H01S5/1032 , H01S5/141 , H01S5/2009 , H01S5/2027 , H01S5/5063 , H01S5/5072
摘要： A clock recovery system and related method are disclosed. One example of the clock recovery system includes an optical detector and lasing SOA that are arranged so that the optical detector detects ballast laser light emitted by the lasing SOA. The optical detector includes an output that is connected to a first input of a phase detector that includes both first and second inputs. A filter is included in the clock recovery system as well and has an input and an output, the input being connected to the output of the phase detector. Finally, this example of the clock recovery system includes an oscillator having an input and an output arranged so that the input of the oscillator is connected to the output of the filter, and the output of the oscillator is connected with the second input of the phase detector.
摘要翻译： 公开了一种时钟恢复系统及相关方法。 时钟恢复系统的一个示例包括光学检测器和激光器SOA，其布置成使得光学检测器检测由激光器SOA发射的镇流激光。 光检测器包括连接到包括第一和第二输入的相位检测器的第一输入的输出。 滤波器也包括在时钟恢复系统中，并具有输入和输出，输入端连接到相位检测器的输出端。 最后，时钟恢复系统的这个示例包括具有输入和输出的振荡器，其布置成使得振荡器的输入连接到滤波器的输出，并且振荡器的输出与相位的第二输入相连 探测器。
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公开(公告)号：US06765715B1
公开(公告)日：2004-07-20
申请号：US10029523
申请日：2001-12-21
IPC分类号： H01S300
CPC分类号： H04B10/299 , H01S5/50
摘要： An optical 2R/3R regenerator is described. One or more LSOAs are used as part of the optical 2R/3R register.
摘要翻译： 描述了一种光学2R / 3R再生器。 一个或多个LSOAs用作光学2R / 3R再生器的一部分。
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公开(公告)号：US06445495B1
公开(公告)日：2002-09-03
申请号：US09273813
申请日：1999-03-22
IPC分类号： H01S318
CPC分类号： H01S5/5072 , H01S5/0265 , H01S5/1032 , H01S5/142 , H01S5/18302 , H01S5/18305 , H01S5/18358 , H01S5/2027 , H01S5/4056 , H01S5/5027
摘要： A tunable-gain lasing semiconductor optical amplifier comprises a vertical-lasing semiconductor optical amplifier that includes a tunable region which allows the gain of the vertical-lasing semiconductor optical amplifier to be tuned. The tunable region comprises a region whose loss and/or phase may be tuned by adjusting a physical characteristic of the region. For example, the region may comprise a liquid crystal layer whose transmissivity may be adjusted by applying different voltages across the layer to adjust the reflectivity of a cavity mirror, or a cavity mirror whose reflectivity may be adjusted by ion implantation. In an alternative embodiment of this invention, the tunable-gain lasing semiconductor optical amplifier comprises a tunable loss element in series after the gain-clamped semiconductor optical amplifier.
摘要翻译： 可调增益激光半导体光放大器包括垂直激光半导体光放大器，其包括允许垂直激光半导体光放大器的增益被调谐的可调谐区域。 可调谐区域包括可以通过调整该区域的物理特性来调整其损耗和/或相位的区域。 例如，该区域可以包括液晶层，其透射率可以通过跨层施加不同的电压来调节，以调节空腔反射镜的反射率，或者可以通过离子注入调整其反射率的腔镜。 在本发明的替代实施例中，可调增益激光半导体光放大器包括在增益钳位半导体光放大器之后串联的可调损耗元件。
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8.发明授权公开(公告)号：US06822787B1
公开(公告)日：2004-11-23
申请号：US10061585
申请日：2002-02-01
申请人： Sol P. DiJaili , Jeffrey D. Walker
发明人： Sol P. DiJaili , Jeffrey D. Walker
IPC分类号： H01S300
CPC分类号： H01S5/18311 , H01S5/0285 , H01S5/0622 , H01S5/0683 , H01S5/1032 , H01S5/141 , H01S5/2009 , H01S5/2027 , H01S5/5063 , H01S5/5072
摘要： An optical signal power monitoring and control system is described. The system comprises at least one lasing SOA that receives, amplifies, and outputs the optical signal. In response to the signal amplification, a ballast laser signal is output through a substrate of the lasing SOA. This ballast laser signal is indicative of the optical signal power. At least one detector converts the ballast laser signal to an electrical signal and transmits this electrical signal to a power monitor circuit. Using the electrical signal, the power monitor signal may determine the power of the electrical signal and the gain across the lasing SOA. A gain control circuit may adjust the gain across a tunable-gain lasing SOA or multi-stage optical amplifier in order to optimize the optical signal's strength. The electrical signal power and lasing SOA gain may be transmitted to a terminal to display this information or a warning may be generated when certain criteria are met.
摘要翻译： 描述了光信号功率监控系统。 该系统包括接收，放大和输出光信号的至少一个激光器SOA。 响应于信号放大，通过激光器SOA的衬底输出镇流器激光信号。 该镇流器激光信号表示光信号功率。 至少一个检测器将镇流器激光信号转换为电信号，并将该电信号传输到功率监视器电路。 使用电信号，功率监控信号可以确定电信号的功率和穿过激光器SOA的增益。 增益控制电路可以调整可调谐增益激光SOA或多级光放大器的增益，以优化光信号的强度。 电信号功率和激光的SOA增益可以被发送到终端以显示该信息，或者当符合某些标准时可以产生警告。
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公开(公告)号：US06512629B1
公开(公告)日：2003-01-28
申请号：US09416817
申请日：1999-10-12
申请人： Sol P. Dijaili , Jeffrey D. Walker
发明人： Sol P. Dijaili , Jeffrey D. Walker
IPC分类号： H01S300
CPC分类号： H01S5/5027 , H01S5/0265 , H01S5/0611 , H01S5/1032 , H01S5/142 , H01S5/18302 , H01S5/18305 , H01S5/18308 , H01S5/18358 , H01S5/2027 , H01S5/2215 , H01S5/2231 , H01S5/4056 , H01S5/5072 , H01S2301/02
摘要： A multi-stage lasing semiconductor optical amplifier (SOA) device amplifies an optical signal. The multi-stage SOA includes at least two SOA stages coupled in series. Each SOA stage includes a semiconductor gain medium and a laser cavity including the semiconductor gain medium. The medium is pumped above a lasing threshold for the laser cavity, which clamps the gain of the medium. An optical signal propagating through the medium is amplified by the gain-clamped medium. The SOA stages are characterized by a design parameter which varies from stage to stage. In a preferred embodiment, the design parameter includes a noise figure and a saturable power, with both parameters increasing as the optical signal propagates from stage to stage. As a result, the multi-stage SOA can achieve better noise performance and higher power outputs compared to comparable SOAs of constant noise figure and saturable power.
摘要翻译： 多阶段激光半导体光放大器（SOA）器件放大光信号。 多级SOA包括至少两个串联耦合的SOA阶段。 每个SOA阶段包括半导体增益介质和包括半导体增益介质的激光腔。 介质被泵送在激光腔的激光阈值之上，其夹持介质的增益。 通过介质传播的光信号被增益钳位介质放大。 SOA阶段的特征在于从阶段到阶段都不同的设计参数。 在优选实施例中，设计参数包括噪声系数和可饱和功率，随着光信号从舞台传播到舞台，两个参数都增加。 因此，与具有恒定噪声系数和可饱和能力的可比较SOA相比，多级SOA可以实现更好的噪声性能和更高的功率输出。
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公开(公告)号：US06347104B1
公开(公告)日：2002-02-12
申请号：US09299824
申请日：1999-04-26
申请人： Sol P. Dijaili , Jeffrey D. Walker
发明人： Sol P. Dijaili , Jeffrey D. Walker
IPC分类号： H01S300
CPC分类号： H01S5/18302 , H01S5/0265 , H01S5/0285 , H01S5/0622 , H01S5/1021 , H01S5/1032 , H01S5/142 , H01S5/18305 , H01S5/2027 , H01S5/4056 , H01S5/5027 , H01S5/5072
摘要： An optical signal power monitor and regulator comprises: a lasing semiconductor optical amplifier for receiving the optical signal and whose laser output is used to monitor a power level of the optical signal; a monitor circuit which receives the laser output and outputs a monitoring signal; a tunable element for receiving a version of the optical signal and whose level of amplification is adjustable and for outputting an amplified optical signal; and a regulator circuit for receiving the monitoring signal and adjusting the amplification of the tunable optical amplifier depending upon the monitoring signal. The tunable element may comprise a tunable gain-clamped semiconductor optical amplifier. Such an embodiment is capable of automatically regulating the tunable element such that a power level of the amplified optical signal is kept stable. In addition, the monitor circuit may be used to send status information regarding the optical signal to a network management system, which in turn may send to the regulator circuit a managing signal affecting the level of amplification to be applied to the optical signal.
摘要翻译： 光信号功率监视器和调节器包括：用于接收光信号的激光半导体光放大器，其激光输出用于监视光信号的功率电平; 接收激光输出并输出监视信号的监视电路; 用于接收光信号的版本并且其放大级别可调并用于输出放大的光信号的可调谐元件; 以及调节电路，用于根据监视信号接收监视信号并调整可调谐光放大器的放大。 可调元件可以包括可调增益钳位半导体光放大器。 这样的实施例能够自动调节可调元件，使得放大的光信号的功率电平保持稳定。 此外，监视电路可以用于向网络管理系统发送关于光信号的状态信息，网络管理系统又可以向调节器电路发送影响要施加到光信号的放大电平的管理信号。
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