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1. 发明授权

US06731883B1 System and method for demultiplexing in optical communication systems 失效
标题翻译：光通信系统中解复用的系统和方法
公开(公告)号：US06731883B1
公开(公告)日：2004-05-04
申请号：US09623019
申请日：2000-11-06
申请人： Liam Barry , John Harvey , John Dudley
发明人： Liam Barry , John Harvey , John Dudley
IPC分类号： H04B1006
CPC分类号： H04J14/028 , H04J14/0226 , H04J14/0232 , H04J14/0247 , H04J14/08 , H04L7/0008 , H04L7/0075
摘要： A demultiplexer and method for a high speed time division multiplex optical communication system uses an opto-electronic device in which two photon absorption can occur configured in circuit. The received optical multi-channel signal and a control optical signal at the repetition rate of and synchronized to the selected channel to be detected are applied to the device, which is configured in circuit as to generate by non-linear two photon absorption effect a current similar to the original signal.
摘要翻译：用于高速时分复用光通信系统的解复用器和方法使用其中可以在电路中配置两个光子吸收的光电子器件。所接收的光多信道信号和被选择的被检测信道的重复频率和同步的控制光信号被施加到该装置，该装置被配置为通过非线性双光子吸收效应产生电流类似于原来的信号。

2. 发明申请

US20080170858A1 Optical Pulse Source for Use in Broadband Photonic Communication Systems 审中-公开
标题翻译：用于宽带光通信系统的光脉冲源
公开(公告)号：US20080170858A1
公开(公告)日：2008-07-17
申请号：US11665894
申请日：2005-10-21
申请人： Liam Barry , John Harvey
发明人： Liam Barry , John Harvey
IPC分类号： H04J14/02
CPC分类号： H04B10/508 , H04B10/504
摘要： The invention relates to an apparatus and method for providing an improved optical pulse source suitable for use in high-speed optical communication systems. The optical pulse source can output spectrally pure pulses in a high capacity optical communication system. An optical pulse source in accordance with the invention comprises; at least one gain switched laser diode; and at least one non-linearly chirped optical processing element adapted to enhance the spectral purity of the output pulses generated from the laser diode.
摘要翻译：本发明涉及一种用于提供适用于高速光通信系统的改进的光脉冲源的装置和方法。光脉冲源可以在高容量光通信系统中输出光谱纯的脉冲。根据本发明的光脉冲源包括：至少一个增益开关激光二极管; 以及至少一个非线性啁啾光学处理元件，其适于增强从激光二极管产生的输出脉冲的光谱纯度。

3. 发明申请

US20120063476A1 OPTICAL WAVELENGTH COMB GENERATOR DEVICE 有权
标题翻译：光波长发电机装置
公开(公告)号：US20120063476A1
公开(公告)日：2012-03-15
申请号：US13257917
申请日：2010-03-19
申请人： Prince Anandarajah , Liam Barry
发明人： Prince Anandarajah , Liam Barry
IPC分类号： H01S3/10
CPC分类号： H04B10/506 , H01S5/005 , H01S5/0085 , H01S5/0427 , H01S5/06213 , H01S5/0653 , H01S5/0658 , H01S5/0687 , H04J14/02
摘要： The present application relates to comb frequency generator devices generally and more particularly to the use of comb generators for use in fibre optic communications. More particularly, the application provides a frequency comb generator device. The device comprises a laser (30), a biasing circuit for providing a DC bias current (26), an RF circuit (22) providing a RF signal and a drive circuit (28) for combining the RF signal with the DC bias current to provide a drive current to the laser (30). With the DC bias current below threshold of the laser diode and RF bias with a frequence close to the relaxation ascillation frequency of the laser diode, a periodic pulse train is emitted with constant phase.
摘要翻译：本发明涉及梳状频率发生器装置，一般而且更具体地涉及使用梳状发生器用于光纤通信。更具体地，本申请提供了一种频率梳发生器装置。该装置包括激光器（30），用于提供DC偏置电流（26）的偏置电路，提供RF信号的RF电路（22）和用于将RF信号与DC偏置电流组合的驱动电路（28）向激光器（30）提供驱动电流。由于直流偏置电流低于激光二极管的阈值，而射频偏置频率接近激光二极管的松弛升华频率，周期脉冲串将以恒定相位发射。

4. 发明申请

US20130302027A1 OPTICAL MEASUREMENT METHOD AND SYSTEM 审中-公开
标题翻译：光学测量方法与系统
公开(公告)号：US20130302027A1
公开(公告)日：2013-11-14
申请号：US13821210
申请日：2011-02-28
申请人： Stuart Murdoch , Douglas Reid , Liam Barry , Regan Watts
发明人： Stuart Murdoch , Douglas Reid , Liam Barry , Regan Watts
IPC分类号： H04B10/07
CPC分类号： H04B10/07 , G01J9/04 , H04B10/07955
摘要： The present application is directed to the measurement of the intensity and phase of high speed optical signals. The present application uses a tunable optical local oscillator, an optical coupler, a photodiode and RF electronics. The tunable laser enables successive measurements to be taken across the optical spectrum allowing the system to measure extremely high bandwidth signals. The signal generated by the local oscillator comprises a component at a frequency between two adjacent modes of the periodic optical signal to be measured. The local oscillator and said periodic signal are optically mixed and sent to a photodiode, the measurement of the phase being based on isolating the resulting beat frequencies. This approach offers a significant improvement over existing time resolved approaches which are limited to the bandwidth of the photodiode (˜50 GHz).
摘要翻译：本申请涉及测量高速光信号的强度和相位。本申请使用可调谐光学本地振荡器，光耦合器，光电二极管和RF电子器件。可调激光器可以在光谱上进行连续的测量，从而允许系统测量极高的带宽信号。由本地振荡器产生的信号包括在要测量的周期性光信号的两个相邻模式之间的频率处的分量。本地振荡器和所述周期信号被光学混合并发送到光电二极管，相位的测量基于隔离所得到的拍频。这种方法比限于光电二极管（〜50 GHz）的带宽的现有时间分辨方法提供了显着的改进。

5. 发明授权

US09385506B2 Wavelength tunable comb source 有权
标题翻译：波长可调梳源
公开(公告)号：US09385506B2
公开(公告)日：2016-07-05
申请号：US14343675
申请日：2012-09-12
申请人： Prince Anandarajah , Sylwester Latkowski , Liam Barry
发明人： Prince Anandarajah , Sylwester Latkowski , Liam Barry
IPC分类号： H01S5/065 , H01S5/40 , H04B10/50 , H01S5/00 , H01S5/042 , H01S5/10
CPC分类号： H01S5/065 , H01S5/0064 , H01S5/0085 , H01S5/0427 , H01S5/0656 , H01S5/1096 , H01S5/40 , H01S5/4006 , H04B10/506
摘要： The present application provides an optical comb source in which the comb is produced by seeding a gain switched Fabry-Pérot laser with light from a single mode laser, while at the same time driving the Fabry-Pérot laser with a DC bias and RF signal.
摘要翻译：本申请提供了一种光梳源，其中通过用来自单模激光的光种子增益切换法布里 - 珀罗激光器同时通过DC偏压和RF信号驱动法布里 - 珀罗激光器来产生梳子。

6. 发明申请

US20130101290A1 METHOD AND APPARATUS TO OVERCOME LINEWIDTH PROBLEMS IN FAST RECONFIGURABLE NETWORKS 审中-公开
标题翻译：在快速可重构网络中覆盖线性问题的方法和装置
公开(公告)号：US20130101290A1
公开(公告)日：2013-04-25
申请号：US13642261
申请日：2011-04-12
申请人： Prince Anandarajah , Liam Barry , Philip Perry , Kai Shi , Frank Smyth
发明人： Prince Anandarajah , Liam Barry , Philip Perry , Kai Shi , Frank Smyth
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04B10/58 , H04B10/60 , H04B10/611 , H04B10/613
摘要： In wavelength switching optical networks, the optical data being transmitted may be routed to different end points by switching the operating frequency of the laser. However, the phase noise of the laser source increases following a switching event. This increased phase noise can prevent the successful transmission of phase modulation formats which are sensitive to it. Accordingly, it is generally necessary to wait a short period before transmitting data. However, the period may be as long as the data packet being transmitted (e.g. 3 μS), which is a limiting factor. The present application obviates this problem by including a radio frequency pilot tone with the data prior to modulation onto the optical carrier.
摘要翻译：在波长切换光网络中，正在传输的光学数据可以通过切换激光器的工作频率被路由到不同的端点。然而，切换事件之后，激光源的相位噪声增加。这种增加的相位噪声可以防止对其敏感的相位调制格式的成功传输。因此，通常需要在发送数据之前等待短时间。然而，该周期可以与发送的数据分组（例如，3μS）一样长，这是限制因素。本申请通过将调制前的数据与射频载波一起包括射频导频音来消除这个问题。

7. 发明申请

US20050104064A1 Semiconductor photodetector 失效
标题翻译：半导体光电探测器
公开(公告)号：US20050104064A1
公开(公告)日：2005-05-19
申请号：US10506106
申请日：2003-03-03
申请人： John Hegarty , Liam Barry , Herve Armel Folliot , James O'Gorman
发明人： John Hegarty , Liam Barry , Herve Armel Folliot , James O'Gorman
IPC分类号： H01L29/04 , H01L29/10 , H01L31/0232 , H01L31/0352 , H01L31/036 , H01L31/10 , H01L31/101 , H01L31/108
CPC分类号： H01L31/105 , B82Y20/00 , H01L31/035236 , H01L31/108 , H01L31/1085
摘要： A semiconductor photodetector (1) for detecting short duration laser light pulses of predetermined wavelength in a light signal (2) comprises a micro-resonator (3) of vertical Fabry-Perot construction having a Bragg mirror pair, namely, a front mirror (5) and a rear mirror (6) with an active region (8) located between the front and rear mirrors (5,6). An N-type substrate (11) supports the rear mirror (6). The light signal (2) is directed into the active region (8) through the front mirror (5) while a pump beam (17) is directed into the active region (8) at an end (18) thereof. The spacing between the front and rear mirrors (5,6) is such as to cause light of the predetermined wavelength to resonate between the mirrors (5,6). The semiconductor material of the active region (8) is selected so that one photon from each of the light signal (2) and the pump beam (17) are required to transfer one electron from a valence band (21) of the active region (8) across a bandgap (22) to a conduction band (20) so that the active region operates on the principle of Two-Photon Absorption. On the active region (8) being simultaneously subjected to the pump beam and light of the predetermined wavelength in the light signal (2) electrons are transferred by Two-Photon Absorption from the valence band (21) to the conduction band (20), thus causing a change in the voltage developed across the active region (8). The change in voltage is detected between an electrode (15) on the substrate (11) and electrodes (8) on the front mirror (5) thereby indicating the presence of light of the predetermined wavelength in the light signal (2).
摘要翻译：一种用于在光信号（2）中检测预定波长的短持续时间激光脉冲的半导体光电检测器（1）包括具有布拉格光束对的垂直法布里 - 珀罗结构的微谐振器（3），即前反射镜）和具有位于前后反射镜（5,6）之间的有源区域（8）的后反射镜（6）。 N型基板（11）支撑后反射镜（6）。光信号（2）通过前反射镜（5）被引导到有源区域（8）中，而泵浦光束（17）在其端部（18）处被引导到有源区域（8）中。前后反射镜（5,6）之间的间隔使得预定波长的光在反射镜（5,6）之间共振。有源区域（8）的半导体材料被选择为使得来自光信号（2）和泵浦光束（17）中的每一个的一个光子需要从有源区域的价带（21）传送一个电子 8）穿过带隙（22）到导带（20），使得有源区域以双光子吸收原理工作。在有源区域（8）同时经受泵浦光束和光信号（2）中的预定波长的光，电子通过双光子吸收从价带（21）转移到导带（20），从而导致在有源区（8）上产生的电压的变化。在基板（11）上的电极（15）和前反射镜（5）上的电极（8）之间检测电压变化，从而指示在光信号（2）中存在预定波长的光。

8. 发明授权

US09197326B2 Optical wavelength comb generator device 有权
标题翻译：光波长梳发生器装置
公开(公告)号：US09197326B2
公开(公告)日：2015-11-24
申请号：US13257917
申请日：2010-03-19
申请人： Prince Anandarajah , Liam Barry
发明人： Prince Anandarajah , Liam Barry
IPC分类号： H01S3/00 , H04B10/50 , H01S5/042 , H01S5/0687 , H01S5/00 , H01S5/062 , H01S5/065 , H04J14/02
CPC分类号： H04B10/506 , H01S5/005 , H01S5/0085 , H01S5/0427 , H01S5/06213 , H01S5/0653 , H01S5/0658 , H01S5/0687 , H04J14/02
摘要： The present application relates to comb frequency generator devices generally and more particularly to the use of comb generators for use in fibre optic communications. More particularly, the application provides a frequency comb generator device. The device comprises a laser (30), a biasing circuit for providing a DC bias current (26), an RF circuit (22) providing a RF signal and a drive circuit (28) for combining the RF signal with the DC bias current to provide a drive current to the laser (30). With the DC bias current below threshold of the laser diode and RF bias with a frequence close to the relaxation ascillation frequency of the laser diode, a periodic pulse train is emitted with constant phase.
摘要翻译：本发明涉及梳状频率发生器装置，一般而且更具体地涉及使用梳状发生器用于光纤通信。更具体地，本申请提供了一种频率梳发生器装置。该装置包括激光器（30），用于提供DC偏置电流（26）的偏置电路，提供RF信号的RF电路（22）和用于将RF信号与DC偏置电流组合的驱动电路（28）向激光器（30）提供驱动电流。由于直流偏置电流低于激光二极管的阈值，而射频偏置频率接近激光二极管的松弛升华频率，周期脉冲串将以恒定相位发射。

9. 发明申请

US20140314108A1 WAVELENGTH TUNABLE COMB SOURCE 有权
标题翻译：波长可调电源
公开(公告)号：US20140314108A1
公开(公告)日：2014-10-23
申请号：US14343675
申请日：2012-09-12
申请人： Prince Anandarajah , Sylwester Latkowski , Liam Barry
发明人： Prince Anandarajah , Sylwester Latkowski , Liam Barry
IPC分类号： H01S5/065 , H01S5/40
CPC分类号： H01S5/065 , H01S5/0064 , H01S5/0085 , H01S5/0427 , H01S5/0656 , H01S5/1096 , H01S5/40 , H01S5/4006 , H04B10/506
摘要： The present application provides an optical comb source in which the comb is produced by seeding a gain switched Fabry-Pérot laser with light from a single mode laser, whilst at the same time driving the Fabry-Pérot laser with a DC bias and RF signal.
摘要翻译：本申请提供了一种光梳源，其中通过用来自单模激光的光种子增益切换法布里 - 珀罗激光器同时通过DC偏置和RF信号驱动法布里 - 珀罗激光器来产生梳子。

10. 发明申请

US20120294320A1 TUNABLE LASER SYSTEM AND METHOD 审中-公开
标题翻译：可控激光系统和方法
公开(公告)号：US20120294320A1
公开(公告)日：2012-11-22
申请号：US13438685
申请日：2012-04-03
申请人： Brian Corbett , Brendan Roycroft , Liam Barry , Frank Smyth , Kai Shi
发明人： Brian Corbett , Brendan Roycroft , Liam Barry , Frank Smyth , Kai Shi
IPC分类号： H01S3/10
CPC分类号： H01S5/06255 , H01S5/0014 , H01S5/0618
摘要： According to the invention there is provided a tunable laser system for use in an optical communication system, said tunable laser system comprising a multi-section laser separated by at least two slots to define a plurality of sections, each section adapted to provide an optical gain. Each section comprises a separate control means to provide an adjustable optical gain in each section. The tunable laser system and method of the present invention provides a wide tuning range, narrow linewidth and fast switching times.
摘要翻译：根据本发明，提供了一种用于光通信系统的可调谐激光系统，所述可调谐激光系统包括由至少两个狭缝分隔的多段激光以限定多个部分，每个部分适于提供光学增益。每个部分包括单独的控制装置，以在每个部分中提供可调节的光学增益。本发明的可调谐激光系统和方法提供宽调谐范围，窄线宽和快速切换时间。

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